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Computer Designed Car Sets Speed Record

amcdiarmid writes "Several sources are reporting that the first entirely computer designed car, the JCB Dieselmax, has broken the diesel speed record of 236MPH at a speed of 328MPH. From the article: 'The record attempt came after a string of trial runs on the runways at the airbase. But while testing went well, the team endured a troubled time in the US. The combination of the altitude (4,000ft) and the higher air temperatures affected the performance of the second engine, which was generating insufficient turbo boost pressure and led to days of work for the small team of engineering experts.'"

247 comments

  1. That's pretty fast by ackthpt · · Score: 5, Funny

    broken the diesel speed record of 236MPH at a speed of 328MPH.

    But they could probably top 350 MPH if they'd ditch the CB antenna and Yosemite Sam "Back Off" mudflaps.

    this thing gets some real looks at the Sapp Bros.

    --

    A feeling of having made the same mistake before: Deja Foobar
    1. Re:That's pretty fast by Tackhead · · Score: 4, Funny
      > But they could probably top 350 MPH if they'd ditch the CB antenna and Yosemite Sam "Back Off" mudflaps.

      Me an' Tim was haulin' chickens
      O'er a lakebed outa Wiggins
      And we had spent all night on the uphill side,
      Of thirty seven hundred square miles of hell called Bonneville Flats,
      (Which was up on the great divide...)

      And we was sittin' there readin' Slashdot,
      And moderatin' like Crow T. Trollbot,
      And I says "Tim, let's send an Internet down the tubes,
      And then send them chickens on down t'other side"
      (Yeah, lets give them hens a ride.)

      Chorus:
      Bonneville flats, way up on the great divide,
      Truckin' on down, the other side.

      Leverton put down his bottle,
      With Andy's foot down on the throttle,
      Ate a couple o' smores, then 1500 horse,
      from a two-thousand-ought-six Dieselmax screamed to life.
      (We woke up the chickens.)

      We roared up off'n that shoulder,
      Sprayin' pine cones rocks 'n boulders,
      And put four hundred head of them Rhode Island Reds
      And a couple of burnt out roosters on the line.
      (Look out below. 'cause here we go...)

      ...and I really don't have to change another word of Wolf Creek Pass, by C.W. McCall, from that point onwards, because the ride was just about as hairy.

      'Cept for that feed store in downtown Pagosa Springs. Place was still a mess from when that truck done run through it.

    2. Re:That's pretty fast by Eternauta3k · · Score: 1

      This article made me feel stupid, I had to read the numbers like 5 times to realize the latter was bigger (didn't notice one was 300 while the other 200) :P

      --
      Yeah. Would you choose a neurosurgeon who pokes around people's brains in his spare time? I wouldn't.
    3. Re:That's pretty fast by Anonymous Coward · · Score: 0

      But they could probably top 350 MPH

      Oh! Wait a minute! ... -_-

    4. Re:That's pretty fast by Arcane_Rhino · · Score: 1

      Ditch ma CB antenna and Yosemite Sam mudflap? You mus' be a ga-damn communist.

    5. Re:That's pretty fast by LiMikeTnux · · Score: 0

      dude, its terrorist now ;)

      --
      yap
    6. Re:That's pretty fast by Baloo+Ursidae · · Score: 1
      But they could probably top 350 MPH if they'd ditch the CB antenna and Yosemite Sam "Back Off" mudflaps.

      I don't get it. I use CB, and there's very few magnet mount antennas that won't get blown off at speeds over 65 MPH, and it took some research to find one that had a strong enough magnet to handle Oregon's highest freeway speeds (70 MPH...nobody goes faster because it's cost prohibitive to get a ticket at speeds higher than that since once you're going 70, you're probably going 15 faster than posted, and that's $500 easy).

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    7. Re:That's pretty fast by Kyle_Katarn-(ISF) · · Score: 1

      Try telling Sheriff Buford T. Justice that :P You know, Slashdot is the last place I thought I'd see a S&B reference...

    8. Re:That's pretty fast by TheWanderingHermit · · Score: 1

      But they could probably top 350 MPH if they'd ditch the CB antenna and Yosemite Sam "Back Off" mudflaps.

      Maybe so, but I doubt they could have still not jumped into the 8th dimension and driven through a mountain.

      At least not without the oscillation overthruster.

    9. Re:That's pretty fast by Nate+B. · · Score: 1

      That brings back memories! I knew right away the source of your parody.

      As a kid I was a big C.W. McCall fan and had most of the albums (yes, real vinyl albums) plus a couple on 8-track. I'd borrow mom's stereo to play them. The things my folks put up with. :-D

      --

      "Insanity is doing the same thing over again expecting a different result."
    10. Re:That's pretty fast by Anonymous Coward · · Score: 0

      Truckers use diesel engines. Get it now?

    11. Re:That's pretty fast by budgenator · · Score: 1

      It was worded badly, just adding "new speed record" and "previous speed record" would have made things clear as mud.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    12. Re:That's pretty fast by Fred_A · · Score: 1

      That's because the secret method the used was reversing the polarity.

      --

      May contain traces of nut.
      Made from the freshest electrons.
    13. Re:That's pretty fast by hal2814 · · Score: 1

      I don't care if you drove through a mountain in Texas. This is New Jersey, and when you play my joint, you're just another act. I want some music out'a you characters!

    14. Re:That's pretty fast by smellsofbikes · · Score: 1

      And what's a little funny is that Wolf Creek isn't even particularly hairy compared to Argentine Pass (13,200') or Black Bear or Pearl or Schofield Passes. I've ridden my road bike over wolf creek several times; I had to do some rock climbing to walk Argentine.

      --
      Nostalgia's not what it used to be.
    15. Re:That's pretty fast by innes · · Score: 1

      But they could probably top 350 MPH if they'd ditch the CB antenna and Yosemite Sam "Back Off" mudflaps.
      Looks like they were listening to you, they did top 350 MPH http://www.theregister.co.uk/2006/08/24/digger_spe ed_record_broken/

  2. all part of the plan by User+956 · · Score: 4, Funny

    Several sources are reporting that the first entirely computer designed car, the JCB Dieselmax, has broken the diesel speed record of 236MPH at a speed of 328MPH.

    ..and it will help those computers find Sarah Connor just that much more quickly.

    --
    The theory of relativity doesn't work right in Arkansas.
    1. Re:all part of the plan by cloricus · · Score: 1

      You are assuming that they understand American whats its instead of the distance and speeds that the rest of the world uses. Any one care to translate them to metric so that our new machine overlords have an easier time?

      --
      I ate your fish.
    2. Re:all part of the plan by Majik+Sheff · · Score: 3, Informative

      Approx 528 Km/H or 881664 furlongs/fortnight

      --
      Women are like electronics: you don't know how damaged they are until you try to turn them on.
    3. Re:all part of the plan by cloricus · · Score: 1

      Thanks...Now where did that model T get too?

      --
      I ate your fish.
    4. Re:all part of the plan by N+Monkey · · Score: 1
      You are assuming that they understand American whats its instead of the distance and speeds that the rest of the world uses. Any one care to translate them to metric so that our new machine overlords have an easier time?
      Well, the vehicle is British so the speeds would be in MPH but the fuel tank size would be measured in litres. Wonderful consistency for you :-)
    5. Re:all part of the plan by legojenn · · Score: 1

      I never understood why people in countries that went from the Imperial system to the metric system adopted some metric measures and didn't bother with others. In Canada, we buy our gasoline in litres, drive in km/h and measure long distances in km, but talk about fuel economy in miles/US gallon (and we never used US gallons). We measure tangible things like food or height and weight in Imperial measure, but large or small things in metric measure. It works, but go figger.

      --
      I make a reasonable middle-class wage by going to work and not spamming blogs with scams.
    6. Re:all part of the plan by bdonalds · · Score: 1

      Yeah, but how many hectares will she go on a single tank of kerosene?

      --
      The most important thing to do in your life is to not interfere with somebody else's life. -FZ
    7. Re:all part of the plan by mla_anderson · · Score: 1

      When I lived in BC we measured fuel efficiency in litres/100km, but called it mileage. In the stores we'd asked for imperial quantities, but be billed in metric. (Ask for 1/2 lb of ham, pay for 250g.)

      I'm really screwed up, I've lived in fully imperial, mixed and metric countries. When it comes to temperature, I understand hot temperatures in F and cold in C. 18F means nothing to me, but -8C does. Similarly I've seen 50C but until I knew it was 122F it didn't really mean that much either.

      --
      Sig is on vacation
    8. Re:all part of the plan by tehcyder · · Score: 1
      Similarly I've seen 50C but until I knew it was 122F it didn't really mean that much either
      Did you not notice that it was, you know, incredibly fucking hot, or do you mean "seen on the TV"?
      --
      To have a right to do a thing is not at all the same as to be right in doing it
    9. Re:all part of the plan by tehcyder · · Score: 1
      Approx 528 Km/H or 881664 furlongs/fortnight
      That's all very well, but what is it in terms of the average airspeed velocity of an unladen swallow?
      --
      To have a right to do a thing is not at all the same as to be right in doing it
  3. Imagine the bandwidth of... by Anonymous Coward · · Score: 5, Funny

    a diesel computer designed car going 328 MPH filled with hard drives.

    1. Re:Imagine the bandwidth of... by format1337 · · Score: 1

      Imagine a Beowulf cluster of these things..

    2. Re:Imagine the bandwidth of... by bumptehjambox · · Score: 1

      certainly has the potential of a high 'burstable' speed

    3. Re:Imagine the bandwidth of... by Anonymous Coward · · Score: 0

      So where did they get a diesel computer?

    4. Re:Imagine the bandwidth of... by Rich0 · · Score: 1

      The irony of corporate firewalls and email size limits is that when I had to send 100MB of data to another company I ended up doing so by FedExing a CD-R. Would have taken 1/10th the time and 1/10000th the cost via an FTP site, but how many non-IT companies have FTP sites? I figured my employer wouldn't appreciate it if I uploaded it to my webserver at home... :)

  4. Then it did it again... by chill · · Score: 4, Informative
    --
    Learning HOW to think is more important than learning WHAT to think.
    1. Re:Then it did it again... by Nesetril · · Score: 1

      Wow, this is like the first time ever that the first poster is right. Damn those mudflaps!

      --
      Jesus said to his disciples: "If you don't have a sword, sell your cloak and buy one" - Luke 22:36
    2. Re:Then it did it again... by BWJones · · Score: 4, Informative

      Yeah, this was their plan to do it incrementally. I got some great shots of the JCB team doing their thing during Speed Week here. The Dieselmax team was having some problems setting up the car for the salt and were gradually working their way up and had planned all along to really go for the record the week or so after Speed Week.

      --
      Visit Jonesblog and say hello.
    3. Re:Then it did it again... by B1ackDragon · · Score: 1

      Stunning pictures! I know very little about cars or racing, but I would have loved to have been out there...

      --
      The snow doesn't give a soft white damn whom it touches. -- ee cummings
    4. Re:Then it did it again... by budgenator · · Score: 1

      I used to do a lot in IR with film, had to develope my own slides in the E4 process, which was fun.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    5. Re:Then it did it again... by BWJones · · Score: 1

      Thanks! You really do not have to know alot about racing to enjoy the atmosphere out there. I am an unabashed gearhead, but my friends are not and they are absolutely hooked on attending.

      --
      Visit Jonesblog and say hello.
    6. Re:Then it did it again... by BWJones · · Score: 1

      I've done a bit of IR with film and you are right, it is fun. Shooting digital is interesting because most manufacturers place IR filters over the CCDs. Sometimes you can pry them off if you wanna risk it to your digital SLR, but there are also models which are optimized for astrophotography that do not have the IR filters on them....

      --
      Visit Jonesblog and say hello.
    7. Re:Then it did it again... by Anonymous Coward · · Score: 0

      I saw an interview with the guy last night, they didn't even get it n to top (6th) gear!

    8. Re:Then it did it again... by budgenator · · Score: 1

      Digital IR seems to me to be the oposite of film IR, because with digital there is the screen that shows what the CCD "sees" so you know before you record. There is a large degree of instant gratifcation with digital. With film, a good portion of what's recorded is invisible so you really don't have a clue about what's on the film and stay excited until it's develope back in the darkroom. I think film also forces more discipline because there is no instant, "I gotta retake that one", so film photographers that go digital tend to be better that straight digital. Digital also doesn't let you get crazy either, ever take t-max and hydrogen presensitise it, shoot at EI 64,000 hydrogen peroxide post sensitise it and get reasonably grainy prints; can't do that with digital.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
  5. Deisel motors by Reality+Master+101 · · Score: 3, Funny

    But while testing went well, the team endured a troubled time in the US.

    Sources said the motor had been making an unbelievably loud clunking sound, as well as spewing black smoke. Only later did they figure out that was the way the engine was supposed to sound.

    (/RM101, the not-so-proud one-time owner of a Diesel Mercedes Benz, the loudest, most embarrassing-to-drive car he's ever owned)

    --
    Sometimes it's best to just let stupid people be stupid.
    1. Re:Deisel motors by legoburner · · Score: 1

      Hopefully the black smoke thing will go away as the fuel is changed in the US (if it is ever changed). Certainly here in the UK diesel seems to have little difference to gas beyond diesel's greater fuel efficiency and slightly higher price, ever since they mandated a change in refining. I have to say it still gives off slightly worse fumes* than regular gas, but the difference is much less significant in comparison to just 10 years ago.

      *in terms of odour and appearance

    2. Re:Deisel motors by BLKMGK · · Score: 4, Informative

      This particular diesel doesn't smoke - it's running a blended mix to help prevent that. Black smoke is unburned fuel and a sign of an improperly tuned diesel. The low sulphur fuel will help air quality and allow us to FINALLY get some of the better diesels here but I don't think it will change the exhaust smoke since if the car is running right it shouldn't smoke anyway. I've got a new TDI and I've yet to see any smoke but expect to see some come Winter...

      --
      Build it, Drive it, Improve it! Hybridz.org
    3. Re:Deisel motors by afidel · · Score: 4, Informative

      The black smoke hasn't been a problem for properly maintained engines ever, but much cleaner diesel's should be available in the US this fall. Refineries have been producing S15 Low Sulphur diesel since June and all retail outlets should have it by October 15th according to EPA requirements. This means that manufacturers can start importing designs from europe that are designed to run on ultra low sulphur diesel fuel. These designs are MUCH less polluting then engines designed for low grade diesel. For more info see link

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    4. Re:Deisel motors by GTMoogle · · Score: 1

      Aww, come on, that engine sounded awesome. My brother drove a mercedes diesel station wagon for a long time. I still smile every time I hear one (usually from over half a mile away, heh).

    5. Re:Deisel motors by TooMuchToDo · · Score: 1

      Your TDI's ECM should figure out it's colder out in the winter, and compensate to ensure complete combustion.

    6. Re:Deisel motors by arivanov · · Score: 2, Interesting

      The only way not to see smoke ever is to do additional injection of propane into the fuel mix which is known as gas-diesel, eco-diesel or white diesel (depending on the country). It is quite common in European public transport. In some places (Milan, other Italian cities, parts of Germany, etc) most of public transport runs on this and it is great. No smoke whatsoever. Unfortunately (as most things invented by Germans on the continent) it is not allowed for cars and trucks in the UK. You can have it on a boat or on a stationary diesel generator, but you cannot have it on a car (at least officially).

      Considering the quality of air in London and the fact that all London buses and all London cabs are diesel this is not just stupid. This is outright criminal.

      --
      Baker's Law: Misery no longer loves company. Nowadays it insists on it
      http://www.sigsegv.cx/
    7. Re:Deisel motors by Bertie · · Score: 1

      You've never seen it smoke? Next time you're on the freeway, drop it into third and overtake, and watch for that big black puff out the back. It's only for a fraction of a second, but it'll smoke all right.

    8. Re:Deisel motors by Nutria · · Score: 1
      This means that manufacturers can start importing designs from europe that are designed to run on ultra low sulphur diesel fuel. These designs are MUCH less polluting then engines designed for low grade diesel.

      How will "engines designed for low grade diesel" react to LS diesel oil?

      Will they need to be retuned?

      --
      "I don't know, therefore Aliens" Wafflebox1
    9. Re:Deisel motors by tim_abell · · Score: 1

      When I'm on my bike (often) I dislike being overtaken by die-sels. As they overtake they invariably but their foot down and make unpleasant smells, even the fancy new TDI ones.

      Though I hate to think what the petrol ones chuck out that I can't smell and happily breath in.

      --
      Respect copyright - the GPL relies on it.
    10. Re:Deisel motors by BLKMGK · · Score: 2, Informative

      Duh, of course it should and it *does*. You'll note that COLDER temps actually cause LEANER Air/Fuel mixtures not rich which is what black smoke indicates. However colder temps also mean that the fuel doesn't atomize nearly as easily - even at the sick pressures the TDI uses. The result with a diesel, just like a gas vehicle, is rich mixtures in order to get combustion at all and that means some smoke from a diesel as unburned particles make it out the pipe. Warm it up quickly and the emissions impact is lessened.

      --
      Build it, Drive it, Improve it! Hybridz.org
    11. Re:Deisel motors by afidel · · Score: 1

      They will generally be fine, some small percentage will have some type of seal failure due to changes in chemistry, but that can be minimized by using s500 low sulphur diesel instead of s15 ultra low sulphur diesel.

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    12. Re:Deisel motors by florescent_beige · · Score: 1

      All diesels have an unfortunate characteristic called the "smoke point." If the F/A mixture is richer than a certain threshold the burn doesn't have time to finish and intermediate combustion products are ejected out the exhaust. This threshold is lean of stoichiometric.

      Despite the incomplete combustion, the power continues to increase which is why you sometimes see 18-wheelers spewing smoke. I don't think they are permitted to do this under most countries' emission laws but some truckers seem to have dialed in the extra power themselves.

      The exact type of diesel fuel used will affect the smoke point. Generally speaking lower molecular weight hydrocarbons burn faster. I don't know what effect the sulfer content has on the smoke point (diesel is generally made from crappier crude than gasoline which means more sulfur), but reducing it has to be good because it's so malodorous.

      --
      Equine Mammals Are Considerably Smaller
    13. Re:Deisel motors by jafac · · Score: 1

      Bah.

      My TDI is 3 years old. Never smokes.

      Get a lap-top, VAG-COM cable, and software. Keep her tuned.
      www.tdiclub.com

      And don't forget to change your timing belt at 60k miles.

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
    14. Re:Deisel motors by Politburo · · Score: 1

      One problem that I saw in some industry communications is that the pipelines are still being used to transport higher sulfur fuels. So when they put the ultra low sulfur fuel in the pipeline, it picks up residual sulfur in the pipeline and no longer meets the spec. Oops.

    15. Re:Deisel motors by BLKMGK · · Score: 1

      So far no I've not seen smoke. I'll grant that I'm also not nailing the gas very often - I'm trying to see how high I can get the MPG :-P I expect I'll see smoke, maybe lots of it, on a cold start for sure. It woul also make sense in a situation where you cause it to go rich, nailing the gas and then letting up just as the turbo has spooled up will create smoke for sure as the mix goes rich - I know folks who do this to tailgaters (lol). As a normal course of business smoke isn't billowing out the back....

      --
      Build it, Drive it, Improve it! Hybridz.org
    16. Re:Deisel motors by bhtooefr · · Score: 1

      Also a trick you might try... the good old "baby it for a few hours on the freeway, then coast down and then NAIL IT" trick. Blows craploads of soot out the back, even on a TDI. /me owns a 1985 Jetta diesel (totalled, though :() and a 1986 Golf diesel (engineless, but the Jetta's engine survived). Those smoke like a train without even trying. :P

    17. Re:Deisel motors by bhtooefr · · Score: 1

      jafac: Three years old?

      2003s come with a 100,000 mile timing belt.

      So do 2004s, 2005s, and 2006s (although it's a different engine). ;)

      For that matter, 2002s have an 80,000 mile belt.

      And 2001 and older automatics have a 40,000 mile belt, not 60,000.

      Any Mk4 (1998+ New Beetle, 1999.5-2005.0 Jetta, 1999.5-2006.0 Golf) that doesn't already have the 2003 100,000 mile belt can be easily retrofitted with it when you change the belt - you just get a 100k kit instead of a 40/60k or 80k kit. ;)

    18. Re:Deisel motors by BLKMGK · · Score: 1

      Lean of Stoich smokes or Rich of Stoich? I would expect that it would be rich rather than lean. Stoich is chemically "perfect combustion" (usually not peak power) so if there are additional fuel particles left causing smoke I'd think it would be from being too rich not too lean...?

      In the case of this speed record I know they explicitly tried to make sure the vehicle didn't smoke. I'm not sure exactly why other than it wouldn't have been peak power - perhaps to try and promote the idea that not all diesels smoke like chimneys? :-) Pics of a vehcile doing 300+ streaming black would've been pretty ugly...

      --
      Build it, Drive it, Improve it! Hybridz.org
    19. Re:Deisel motors by BLKMGK · · Score: 1

      Umm, I was under the impression that while VAG-COM is an excellent troubleshooting tool and tweaker for things like the alarm\MFI etc. it couldn't be used to adjust fueling or timing of the fueling - no? I have a 2006 TDI with the latest VAG-COM and nothing I've seen in the software has indicated that I could change anything. I'm quite familier with standalone EFI so if there's something in there for this by all means elaborate as I'd be interested in checking it out :-) I've been tempted to chip mine but it has less than 1K on it so far (we have two actually) and I don't know that want to muck with it just yet. Seems to me if you could modify fueling via VAG-COM you could add the fuel without a "chip" or other tweak...

      --
      Build it, Drive it, Improve it! Hybridz.org
    20. Re:Deisel motors by SillySlashdotName · · Score: 1

      Sulfer is usually there as a lubricant and to keep any rubber parts from disintegrating.

      --
      Acts of massive stupidity are almost never covered by warranty. --me.
    21. Re:Deisel motors by tehcyder · · Score: 1
      VAG-COM cable
      I hope that's not what it sounds like.
      --
      To have a right to do a thing is not at all the same as to be right in doing it
    22. Re:Deisel motors by jafac · · Score: 1

      You're right. I was mistakenly converting what I thought was 100k Kilometers to 60k miles - based on faulty memory of what I read at TDIclub.com last year. Good news for me - because I'm coming up on 60k miles, and was worried I had to change it soon.

      I re-read the service guide more carefully. (Actually - the service guide that came with my car was in French for some reason; the rest of my manual is in English - I bought mine used from out of state).

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
    23. Re:Deisel motors by bhtooefr · · Score: 1

      Yep, it's 160k km for your car... ;)

      And TDIClub is awesome. :D

  6. flashsite link posted to slashdot???? by RobertLTux · · Score: 0, Redundant

    Did somebody happen to warn these folks what Slashdot can do to a server??
    any odds on how many comments it will take to bring the server to its knees??

    --
    Any person using FTFY or editing my postings agrees to a US$50.00 charge
    1. Re:flashsite link posted to slashdot???? by morgan_greywolf · · Score: 1
      Did somebody happen to warn these folks what Slashdot can do to a server??
      any odds on how many comments it will take to bring the server to its knees??


      The answer: 10.

    2. Re:flashsite link posted to slashdot???? by Anonymous Coward · · Score: 0

      Haha your sig, that would be the white house. Not funny though...

    3. Re:flashsite link posted to slashdot???? by kemo_by_the_kilo · · Score: 1

      "The answer: 10."

      No.
      The answer is: 42

  7. Are we talking... by ackthpt · · Score: 5, Funny

    a diesel computer designed car going 328 MPH filled with hard drives.

    An information super highway, here?

    --

    A feeling of having made the same mistake before: Deja Foobar
    1. Re:Are we talking... by Architect_sasyr · · Score: 1

      Well at least there will be less waste than the Avian Transport of yester year... Ref: http://coders.meta.net.nz/~perry/rfc/index-1149.ht ml RFC 1149 http://coders.meta.net.nz/~perry/rfc/index-2549.ht ml RFC 2549, and quicker too.

      --
      Me failed English...
      FreeBSD over Linux. If my comments seem odd, this may explain...
    2. Re:Are we talking... by slashbob22 · · Score: 1

      I see a VW Pigeon coming on.

      "High Bandwitdh, High Latency, Transport for Today's Information Hungry Society"

      --
      Proof by very large bribes. QED.
    3. Re:Are we talking... by Anonymous Coward · · Score: 0

      The internet is not a truck! It's a series of tubes.

  8. The Speed of /. by 1+(smarterThanYou) · · Score: 3, Informative

    http://www.engadget.com/2006/08/23/diesel-powered- car-edges-on-half-the-speed-of-sound/ Apparently Slashdot isn't as fast as it used to be. That car has already hit 360+ mph. 320+ mph is now old hat. As an aside, all these smaller blogs seem to be able to keep up with the news much better than slashdot these days. I often find myself with a feeling of deja vu when I'm on Slashdot, as I've no doubt read the clippings elsewhere a few days prior. Ah, the problems inherent in scale.

    1. Re:The Speed of /. by Moofie · · Score: 2, Insightful

      So go. I won't miss you. Promise.

      --
      Why yes, I AM a rocket scientist!
    2. Re:The Speed of /. by Anonymous Coward · · Score: 0

      You must be new here. You probably have a sense of deja vu because it's a dupe. Or will be, give it a week or two.

    3. Re:The Speed of /. by Anonymous Coward · · Score: 1, Funny

      You must be new here. You probably have a sense of deja vu because it's a dupe. Or will be, give it a week or two.

    4. Re:The Speed of /. by Waffle+Iron · · Score: 2, Interesting
      I often find myself with a feeling of deja vu when I'm on Slashdot, as I've no doubt read the clippings elsewhere a few days prior.

      Does that really matter in the big scheme of things? When I was a kid, I found out about stuff like this in places like Popular Science magazine. Most all the tech news I read was already at least a couple of months old by the time I saw it, but despite that I seem to have turned out OK.

    5. Re:The Speed of /. by Anonymous Coward · · Score: 0

      You must be new here. You probably have a sense of deja vu because it's a dupe. Or will be, give it a week er two.

    6. Re:The Speed of /. by Anonymous Coward · · Score: 0

      As an aside, all these smaller blogs seem to be able to keep up with the news much better than slashdot these days

      I recommend you check out www.popurls.com. it's a meta-metafilter for a bunch of metafilter sites (like fark, slash, reddit, del.ici.ous, google news, tons more) so basically if a blog or article or news item anywhere on the internet is getting any major attention you will know about it. and it updates like every 15 minutes. and it's very nicely laid out. so yeah, seriously check it out, it's good and stuff.

    7. Re:The Speed of /. by delinear · · Score: 1

      That's the whole point of places like Slashdot - not necessarily to get there first every time, but to aggregate together a whole bunch of articles that we might find interesting. These days I just don't have the time to track down hundreds of little blogs just so that I can feel like I'm on the bleeding edge of tech news. I'm more than happy to let other people do that for me and read the articles a few days later, all in one place.

    8. Re:The Speed of /. by thePowerOfGrayskull · · Score: 1

      That car has already hit 360+ mph.

      Not quite sure where you got that from; the car has reached 350 mph not 360.

      As an aside, all these smaller blogs seem to be able to keep up with the news much better than slashdot these days

      That may be true, but not in this case. The summary itself contains a link to the car's site, which has the 350.xx mph record right there on the front page.

    9. Re:The Speed of /. by 1+(smarterThanYou) · · Score: 1

      The JCB Website which that blog post linked to (but is having MySQL errors) stated that they reached 360+ and 340- to average around 350. I would throw up a RTFA, but it's so cliche...

    10. Re:The Speed of /. by 3dr · · Score: 1

      Ha! Give it a week or two, and it'll all seem brand-new again.

    11. Re:The Speed of /. by thePowerOfGrayskull · · Score: 1

      Before the mysql errors started, there was a flash animation which said somethign very similar to "On August 22nd, 2006... speed record... blah blah... 350.xxx mph"

    12. Re:The Speed of /. by tehcyder · · Score: 1
      despite that I seem to have turned out OK
      Mate, you think you're a waffle iron, so I wouldn't get too smug.
      --
      To have a right to do a thing is not at all the same as to be right in doing it
  9. Sure that's fast... by the_humeister · · Score: 1

    ... but I want a car that can break the sound barrier. That way I can visit the fiance in 4 hours instead of 8.

    1. Re:Sure that's fast... by Anonymous Coward · · Score: 0

      driver also drove thrustssc, according to the article another reader submitted

    2. Re:Sure that's fast... by Tarquin+Sidebottom · · Score: 3, Interesting

      Interestingly enough, as well as a common driver (as pointed out in the post above), both vehicles had their aerodynamics designed by Ron Ayers.

      http://www.jcbdieselmax.com/html/team.php?team_id= 5

    3. Re:Sure that's fast... by kfg · · Score: 1

      Don Vesco (died 2002), holder of multiple motorcycle speed records and current holder of the wheel driven LSR, once boasted that he could drive a motorcycle from NYC to LA in 5 1/2 hours, if . . .he got lucky with all the lights.

      KFG

  10. Come on, 'entirely computer designed' ? by ScentCone · · Score: 4, Insightful

    The connotation is that someone signed onto a machine somewhere and at the command prompt, typed "design_car -fast -diesel", and poof, there's the design.

    It's a human-designed car, designed by humans using computers (as they have for decades), and no pencils this time. TFA goes on and on about all the people on the team and the work they did, and that's great. So, what's with the headline and summary?

    --
    Don't disappoint your bird dog. Go to the range.
    1. Re:Come on, 'entirely computer designed' ? by kfg · · Score: 1

      So, what's with the headline and summary?

      "Journalism."

      KFG

    2. Re:Come on, 'entirely computer designed' ? by Anonymous Coward · · Score: 1, Interesting

      From TFA,

      To facilitate visualisation of the overall car, Piper's team generated a highly detailed 2D electronic computer model of the car, revealing all of its components to help to identify the fit and practicality of each in relation to the others. A fullsize mock-up was then built for final verification of all aspects of the concept before work started on the real car.

      That seems to be all. The whole thing is written in the usual "ripping yarns" style of promational race car enthusiasts.

      They're quite welcome to their fun, but I'm not seeing an innovative use of computers here, nor any mention of what other technical achievement they may have made that would make this all that interesting to science.

      Does anyone know better? I just see money + latest tech + enthusiasts = faster-than-last-time. That's not a big surprise. What's the story that makes this more than a feature in a Sunday Sports edition?

    3. Re:Come on, 'entirely computer designed' ? by exp(pi*sqrt(163)) · · Score: 4, Funny
      design_car -fast -diesel
      What is it with these Linux geeks. They think the whole world works on the command line. Everyone knows that this car was built by double clicking on "Car", selecting "diesel" in the "Car Design Wizard" and then pushing the speed slider to the top. And apparently there's a hidden option in the registry that increases the range of the speed slider so we expect this record to be broken again very soon.
      --
      Doesn't it make you feel good to know that our freedoms are protected by politicans, lawyers and journalists.
    4. Re:Come on, 'entirely computer designed' ? by Anonymous Coward · · Score: 0

      ...and is there a difference between "Computer Designed Car" and "Computer-Designed Car"?

    5. Re:Come on, 'entirely computer designed' ? by ichigo+2.0 · · Score: 1

      Agree. When I read the title I thought that they had used genetic algorithms or some other evolutionary approach and let the computer churn out the most aerodynamically efficient design, but plain old CAD? Yawn.

    6. Re:Come on, 'entirely computer designed' ? by Anonymous Coward · · Score: 0

      Was that your connotation? Wasn't mine, don't understand why anyone who knows anything about CAD would think that way. Maybe that's it?

    7. Re:Come on, 'entirely computer designed' ? by PhrostyMcByte · · Score: 1

      Just wait until they hit the turbo button- then it will use 2x the MHz to spit out a 2x faster car!

    8. Re:Come on, 'entirely computer designed' ? by Pharmboy · · Score: 1

      IMHO, the fact that a diesel set a new record, and whomped all over the old record. From 236 to just over 350 (the next day, read other links above). This is not a tiny jump in performance.

      Add to the current interest in biodiesel by the nerd community, and the understanding that before diesels become popular in America, two things must happen:

      1. They must meet emission standards. European diesels currently can't be sold in the US as they are in the UE because our standards are much tougher (believe it or not).

      2. They must be sexy. Diesels are seen as something you put in a big rig. Dodge trucks, followed by Ford and Chevy, are helping, but before you see them in passenger cars, "we" need to see that they can be fast and sexy.

      So it isn't the most earth shattering news, but it is a significant jump in performance, and nerdworthy to those of us who think that a small part of the solution of our energy problems is biodiesel/diesel blends.

      It took some rich enthusiasts to show you can fly across the ocean many years ago before we realized trans-atlantic flights. It took rich guys buying horseless carrages before we could buy family cars. It took rich nerdy guys buying $250 2400 baud modems and paying over $100 a month for limited internet access before I could buy my 70 year old mom a dell and get her cable modem. Same with VCR, Video cameras, etc. Porn and rich guys have contributed a lot to the things we take for granted now.

      Maybe in 5 years, we will be able to buy a diesel powered Camero for $25k. The prototypes look pretty good...

      --
      Tequila: It's not just for breakfast anymore!
    9. Re:Come on, 'entirely computer designed' ? by lemonylimey · · Score: 2, Informative

      What's trying to be said on the site is that the car didn't undergo any physical testing or prototypes before the metal was cut for the production car. The mechanical parts were tested with Finite Element Analysis and, more notably, the Aerodynamics entirely with Computational Fluid Dynamics. Although most cars are designed entirely on computers these days (The Deiselmax on Unigraphics, incidentally), they'll invariably make a model of the car and test it in a physical wind tunnel. This is true of even ultra-high-end development like F1 - the Toyota team has three Wind Tunnels that run 24/7/365 when they're not down for maintainance.

      This wasn't an option for the Dieselmax for two reasons. The first was the speed involved - most automotive wind tunnels with the 'rolling road' surface required for accurate results top out around 240mph, way short of 375mph. The second, much more important factor is size - this car is nine meters long! Normally high-speed road car models are tested at between 1/3rd and 1/6th scale, and to fit the Dieselmax onto a rolling road tunnel would require a very small model, and the results you got from it would be very nearly useless.

    10. Re:Come on, 'entirely computer designed' ? by Anivair · · Score: 1

      Let's be fair. You get teh same end result car either way. It's just that the linux way gives you the same car in half the time and allows you to decide what color it is without special software.

    11. Re:Come on, 'entirely computer designed' ? by cloudmaster · · Score: 1

      Maybe in 5 years, we will be able to buy a diesel powered Camero for $25k. The prototypes look pretty good...

      Yeah, I'm looking forward to when Chavrolat brings back the Camero.

    12. Re:Come on, 'entirely computer designed' ? by loquacious+d · · Score: 1

      Volkswagen sells several diesel compacts in the United States. (I believe all of their cars may be bought with diesel engines, actually.) They call it "Turbo Diesel Injection", ooooh doesn't that sound fast. My parents bought a diesel Golf. Doesn't get terribly great mileage (maybe 30-35mpg, though they live in a cold climate and do mostly city driving), and they've been unlucky with its reliability (oh VW, you make such sexxy cars, why can't you make them hold together better...), but it's very nice overall. They did like it a lot better back in the good ol' days when diesel was consistently $0.15 cheaper than gas, instead of vice versa, however.

    13. Re:Come on, 'entirely computer designed' ? by afidel · · Score: 1

      They didn't just beat the record, they obliterated it. I'd be willing to bet that an auto speed record hasn't been beat by that kind of margin since the 1920's, if not earlier.

      --
      There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
    14. Re:Come on, 'entirely computer designed' ? by Anonymous Coward · · Score: 0

      I'm very surprised by that low mileage. I have an 06 Golf TDI and I average 43MPG. Granted a lot of my driving is highway, but they should be getting mileage in the upper 30's to low 40's even with city driving.

    15. Re:Come on, 'entirely computer designed' ? by arkitect · · Score: 1

      If only they would open source the program. I bet we could make it go to ludacris speed.

    16. Re:Come on, 'entirely computer designed' ? by N+Monkey · · Score: 1
      1. They must meet emission standards. European diesels currently can't be sold in the US as they are in the UE because our standards are much tougher (believe it or not).

      2. They must be sexy.
      Presumably, if you just want to a car to meet emissions ("zero") and be sexy (e.g. be related to the Lotus Elise), you could go for the Tesla? That's if you can get hold of one.
    17. Re:Come on, 'entirely computer designed' ? by Nutria · · Score: 1
      ludacris speed

      Proof that Rap Music destroys it's listeners' minds.

      The word is ludicrous.

      --
      "I don't know, therefore Aliens" Wafflebox1
    18. Re:Come on, 'entirely computer designed' ? by level_headed_midwest · · Score: 1

      Yes, Ludacris speed- straight from the crack house to the big house in 2 seconds flat...

      --
      Just "gittin-r-done," day after day.
    19. Re:Come on, 'entirely computer designed' ? by Pharmboy · · Score: 1

      Several makers sell diesels in the usa, but they must make them to usa emission standards which are very tough, and this has reduced the number that are available. Most American diesels are actually USA made, however. Cummins, Catapillar, etc. Part of the problem is also the amount of sulphur in the fuel, which is where biodiesel comes in. Since it has 0% sulphur, you can easily blend it to get lower sulphur fuel. The problem is, it gels at 32F/0C. The key is finding a safe additive that will lower the gel point so it can be used in colder climates. I hear that Eastman in Arkansas is working on this (used to be part of Kodak, bought out by another company recently).

      Diesels generally get 20% better mileage simply because the fuel burns more efficiently. Combined with using biodiesel, this reduces the use of fossil fuels by itself.

      American's still SEE diesels as noisy, dirty and slow. This is why making them cleaner, faster and "sexier" will help increase adoption. Hey, we buy what we like, and we like power. Ironically, diesels HAVE more power (or at least torque). Also, diesel engines add $3k to $5k to the price, so you have to give Americans a REASON to buy them. Better mileage helps. So would reducing the tax on diesel here, which is what is done in Europe. Ultimately, making them "sexy" will make the greatest difference with Americans.

      --
      Tequila: It's not just for breakfast anymore!
    20. Re:Come on, 'entirely computer designed' ? by RMH101 · · Score: 1

      ...re point two - how about this?
      http://www.audi.com/audi/com/en1/experience/motors port/Audi_R10_TDI.html
      Just won Le Mans, 650BHP...

    21. Re:Come on, 'entirely computer designed' ? by kabocox · · Score: 1

      TFA goes on and on about all the people on the team and the work they did, and that's great. So, what's with the headline and summary?

      It's /. that's all you really need to know about that. /. headlines seem to hardly ever have anything to do with the actual facts of the article.

    22. Re:Come on, 'entirely computer designed' ? by bhtooefr · · Score: 1

      An automatic TDI can suck that badly if you do everything wrong.

      FWIW, for the record, TDI stands for Turbocharged Direct Injection.

      TDIClub represent!

    23. Re:Come on, 'entirely computer designed' ? by Pharmboy · · Score: 1

      Good point. Now it needs to be reinforced, many times, over time, to compensate for all the negative feeling people have about diesels. American car builders did a lot to damage the image of diesel engines in the late 70s and early 80s with their "conversion" engines, where they just plugged the spark plug holes, put in heavy rods, and shaved the heads to make diesel engines. They were loud, unreliable and generally short lived. That is why you see many older gas cars from 1980, but none of the same versions with the diesel engines still around.

      --
      Tequila: It's not just for breakfast anymore!
    24. Re:Come on, 'entirely computer designed' ? by tehcyder · · Score: 1
      The connotation is that someone signed onto a machine somewhere and at the command prompt, typed "design_car -fast -diesel", and poof, there's the design
      LOL, it would have been done on a Mac surely?
      --
      To have a right to do a thing is not at all the same as to be right in doing it
    25. Re:Come on, 'entirely computer designed' ? by tehcyder · · Score: 1
      What's the story that makes this more than a feature in a Sunday Sports edition?
      They used the word "computer."
      --
      To have a right to do a thing is not at all the same as to be right in doing it
    26. Re:Come on, 'entirely computer designed' ? by Anonymous Coward · · Score: 0

      Very true, although the Concord was designed in a wind tunnel also, so it's not very useless just expensive to make sure everything is modeled accurately.

    27. Re:Come on, 'entirely computer designed' ? by Anonymous Coward · · Score: 0

      It was marketed by Dodge as the Rampage, IIRC. ;)

  11. FYI by hurfy · · Score: 4, Interesting

    Since it was the 1st thought i had......

    Gas-powered seems to be at 410mph

    No idea why that record held so long for diesel at what seems a low number (236 vs 410)

    1. Re:FYI by DragonWriter · · Score: 3, Informative

      IIRC, diesel engines generally produce less power output per pound of engine weight, which hurts them in speed contests against gasoline negines. Their advantage in many applications is that they are more cost effective in terms of the kind and quantity of fuel consumed to do their work.

    2. Re:FYI by kfg · · Score: 2, Insightful

      No idea why that record held so long for diesel. . .

      It's pretty simple really; lack of interest. It takes someone to put in the time and spend the money and it's not one of your sexier targets.

      For the production outfits like Volkswagon there's also very little promotional value in streamliners and virtually none for custom engined cars. They've got to hop up what they sell to imply that's what you're buying.

      And diesel buyers are economy buyers.

      KFG

    3. Re:FYI by StikyPad · · Score: 2, Interesting

      I'm not sure, but I suspect diesel burns slower. Diesels are also more difficult to build because the compression is much higher, and the fuel is injected at the top of the stroke when the air is already compressed. I imagine both of these could cause problems creating high-RPMs, which is how most standard gasoline racing engines generate their enormous torque.

      I'm not an engineer, but that's just my (un)educated guess.

    4. Re:FYI by LunaticTippy · · Score: 3, Informative

      You're wrong about diesel. It is a more efficient design, giving much higher torque per pound of engine weight and often more horsepower. There is an interesting bit about a diesel race car needing to be handicapped to compete fairly with gasoline cars here.

      --
      Man, you really need that seminar!
    5. Re:FYI by BLKMGK · · Score: 4, Interesting

      Diesel gives more torque partly because as a fuel it contains more BTUs per gallon than gas - it has more energy. Compression ignition is also more effeciently (apparently) which results in better MPG. Part of the reason why that Audi did so well was because it didn't have to refuel nearly as often as it's competitors - I believe it was allowed to run the same size fuel tank as the others. As for weight - diesels generally have heavier engines as they stick to iron and don't use aluminum. The compression loads are a great deal higher and the aluminum apparently cannot handle it.

      Personally I cannot wait for someone to build a diesel hybrid. Now that ought to get some good MPG!

      --
      Build it, Drive it, Improve it! Hybridz.org
    6. Re:FYI by Anonymous Coward · · Score: 0

      KFG wrote : "And diesel buyers are economy buyers."

      Your opinion would have been accurate 30 years ago, but it's not accurate now, unless you qualify it
      by stating that you're speaking only of the US market.

    7. Re:FYI by cerebis · · Score: 3, Informative
      No idea why that record held so long for diesel at what seems a low number (236 vs 410)

      By default, really.

      236mph, while indeed fast, isn't extrodinarily fast by today's standards in car performance. It will have simply been a lack of interest. If they break the broader "internal combustion" record of 409.3mph it would be more impressive, but then again that was set in 1965...

    8. Re:FYI by Massive146 · · Score: 2, Insightful

      But weight doesn't matter that much in top speed contests. The top speed is determined almost entirely by the horsepower and aerodynamic drag. It's only a problem if it takes too long to accelerate up to speed. During speed week they have 4 miles to get up to speed. If that is not long enough, I'm sure they can come back later, on their own, and get a longer course set up.
      But I'm not sure what disadvantages a diesel engine would have. Maybe because not as much research has gone into high performance diesel engines as standard gas engines. Or maybe because diesel engines tend to be built much larger to handle the higher combustion pressures. And a larger engine would result in a less aerodynamic car. I think the former is the most likely reason.

    9. Re:FYI by kfg · · Score: 1

      A friend of mine is setting up to build high end, high performance sports cars based around Volkswagon turbo diesel engines. They'll go for about $80k US.

      His target market? The biodiesel oriented economy buyer. Economy is relative and often only in the mind of the buyer.

      KFG

    10. Re:FYI by JonathanR · · Score: 2, Informative

      The diesel torque advantage (over the otto cycle) is due to the higher brake-mean-effective-pressure of that thermodynamic cycle.

      The volumetric fuel efficiency (mpg) advantage is in part due to the higher LHV (lower heating value) of diesel fuel.

      The energy efficiency advantage is, in part, due to the higher compression ratio typically used and in part due to the lack of induction throttling for power control (less pumping losses). The noise generated by diesels is mostly due to the fast cylinder pressure rise. Diesel noise reduction is partly effected by compromising the ideal diesel cycle (and some of the related efficiencies).

    11. Re:FYI by JonathanR · · Score: 1

      Your post is almost correct.

      Flame speed is the RPM limiting factor for diesels.

      Volumetric efficiency (gas flow losses) is usually the limiting factor for the Otto cycle. Racing engines produce high power by maintaining a moderate amount of torque through to a high engine speed.

      Power = torque x engine speed.

      The drop off in torque past its peak is more than compensated by the increase in engine speed, up to a point. Hence power continues to incease with increasing engine speed, until gas flow efficiencies or flame speed limitations erode torque (BMEP) at a greater rate than the corresponding rise in engine speed.

    12. Re:FYI by bibi-pov · · Score: 2, Informative
      Personally I cannot wait for someone to build a diesel hybrid. Now that ought to get some good MPG!
      You mean like the buses in New York City for instance, or the Fex-Ex fleet ? And these are just a few example, checkout this page
      As for diesel in a personal car, well, a lot of people work on it, have prototype and even have scheduled to sell them in a couple of years. Just ask google for more...
    13. Re:FYI by evilviper · · Score: 1
      Personally I cannot wait for someone to build a diesel hybrid. Now that ought to get some good MPG!

      People keep saying that, but it really doesn't make any sense.

      Hybrids aren't any better than conventional engines at highway speeds. They only improve things because of how terribly ineffecient gasoline ICEs are at city traffic, and when purely idling (engine can shut-off).

      Diesel engines, however, are already geared torwards more torque at lower speed, so they'd get very little benefit during stop and go. And, the fuel consumption of diesel engines is FAR easy to control than spark-based engines. When idling, they barely use any fuel, which is why you can commonly see semis left idling overnight. AND, starting diesels isn't as easy a starting gasoline ICEs, so you'd have to be parked for an even long time to make automatically shutting-off the engine economical.

      So what advantage is there to creating (heavier, more expensive, more complex, more maintenance-heavy) hybrid diesels?
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
    14. Re:FYI by Anonymous Coward · · Score: 0

      "You're wrong about diesel. It is a more efficient design, giving much higher torque per pound of engine weight and often more horsepower."

      Torque yes, power no.

      Your example of the R10 only illustrates that high torque is useful around a track, but for speed records you'll want high power.

      BTW I'd caution you to believe anything at a site that claims the R10 is the first diesel to compete at Le Mans, it's nowhere near it, it is however, the first to win.

      A low power / high torque design will reach it's maximum speed quickly (Ignoring traction concerns), but it will be limited by the maximum power.

      A high power / low torque design has a high potential speed but may run out of track before reaching it.

      Generally power determines v-max, torque effects acceleration.

      BTW, The Audi mainly one due to signifucantly less fuel stops due to using a fuel with more energy. It is important to note that the Audis didn't get a 1-2, they got 1-3. If it wasn't for the extra fuel stops the 2nd placed car would have been a real challanger. (Think about how much time is lost to fuel stops in a 24 hour race). I can understand petrol cars be allowed to carry more fuel (Equivalent BTUs to diesel) and have the weight adjusted to offset some of the extra fuel (Though 124 pounds seems excessive) so that the average weight of the two technologies is similar (petrol starts off heavier due to more fuel, but ends up lighter when the tank is empty), the Audis still have a huge torque advantage which works wonders on a race track.

    15. Re:FYI by IHC+Navistar · · Score: 1, Informative

      The noise is not due to the fast cylinder pressure rise. The reason diesels are loud is because, unlike in a gasoline engine, the fuel detonaes rather than burns. The diesel "knock" is the sound of diesel fuel detonating because of the extreme temperatures created by very high and very fast compression ratios. The knock itself is the detonation of diesel. That's where the noise comes from. The same loud knock can be heard in gasoline engines that are overheating because the fuel instantaneously detonates when it enters an overheated cylinder, instead of deflagrating in the course of normal combustion. Diesel fuel detonates, gasolind deflagrates. That is why diesel engines are chracteristically louder in operation than gasoline engines. Also, diesels operate at a far lower speed than gasoline engines, so the pressure rise in the cylinders is slower. It is the extremely high compression ratios that allows for the fuel to detonate. I have an International Harvester Corporation "Navistar" engine that redlines at 3.5 krpm, and idles around 500 rpm. The cylinder pressure doesn't necessarily rise faster, it just rises more.

      Diesel efficiency comes from the fact that it is an extremely rich-running engine that uses a fuel that is exceedingly higher in energy density and content per volume than gasoline. Average energy efficiency (percentage of the energy generated that is converted into useful work) is along the order of 25%, versus 12% for gasoline engines. Also, diesel engines can withstand higher turbo boost pressures, which means more air can be crammed into a larger cylinder, generating even more power. Efficinecy over gasoline engines also comes from the fact that the fuel detonates rather than burns. This, combined with the extreme compression ratios and energy-dense fuel, is what gives diesels a higher level of efficiency over gasoline engines. Also, since diesel contains far more energy than gasoline, a smaller volume generates more energy (both because of chemical composition and method of combustion), and therefore an engine that uses such a fuel is obviously going to be more efficient. The power generated by diesel engines is significantly increased when a 2-stroke engine is used, versus a four stroke engine.

      However, the efficiency of an engine, regardless of fuel type, is relative to the application and environment in which it is operated in.

      -----

      Sig Sauer

      --
      Knowing Google's lust for data collection, the Soviet Union is still alive and well inside the psyche of Sergey Brin....
    16. Re:FYI by hcdejong · · Score: 1

      Building an engine for the sort of power output, power/weight ratio and power/frontal area ratio you need to achieve 500 km/h is nontrivial.
      The Dieselmax uses two engines with a swept volume of 4.4 litres each, and 5+ bar of compression from the turbochargers, to get 750 bhp/engine.
      The petrol-powered record cars used WW2 vintage aero engines (IIRC Merlins), at 27 litres each and running at maybe 2 bar to get 1500 bhp each. The Merlins were readily available at the time, building a record-breaking car just meant slotting in some second-hand Merlins.

      For a diesel recordbreaker, no such option has been available. Sure, you can get 1500 bhp diesels, but they are meant for use in ships and weigh several tons. Lorry engines develop 500 bhp nowadays (a recent development, in 1980 that was no more than 300 bhp) out of 12 litres. Cranking up the turbo pressure seems easy enough, but pretty soon you'll need to cast a new engine block to withstand the enormous forces.
      The only sport that extensively uses diesels is tractorpulling. Those guys can pull some 1500 bhp from 6 litres, using 2-stage turbochargers and some 10 bar of pressure. Those engines are built to last for 100 meters. Their cooling channels are filled with metal to strengthen the block, and even then violent malfunctions (crankshafts breaking etc) are common.

      So getting a diesel to produce enough power with enough reliability means a lot of development work. Most people interested in breaking speed records weren't interested in the Diesel subcategory, they just wanted the overall record and chose the path of least resistance: petrol.

    17. Re:FYI by hcdejong · · Score: 1

      Actually, JCB have built several diggers with huge supercharged V8s for use at shows. They can achieve about 100 mph, and do wheelies. They carry a 'JCB GT' tag (no doubt in reference to the joke you mentioned, and others).

      The Dieselmax is a showcase for their new engine, which has been developed in-house, quite an achievement for such a relatively small company.

    18. Re:FYI by greylion3 · · Score: 1

      So what advantage is there to creating (heavier, more expensive, more complex, more maintenance-heavy) hybrid diesels?

      Mileage. Plus, if you can build one yourself, you can also maintain it yourself:

      http://www.motherearthnews.com/library/1980_Septem ber_October/Mother_s_Own_Hybrid_Car_

      Anyway, this technology has been available since 1980 and before - why do you think these hybrids aren't being produced and sold at your local car dealer by now (since oil is at $70-80/barrel)?

      Big Oil, perhaps?

      Furthermore; if you can grow your own rapeseed and press the oil from them and filter it, you have pretty much gone self-sufficient with fuel..
      --
      Privacy begins with ..
    19. Re:FYI by evilviper · · Score: 1
      Mileage.

      Prove it. I already addressed why you can't expect much improvement, and certainly not near the improvement you see with gas hybrids.

      http://www.motherearthnews.com/library/1980_Sept em ber_October/Mother_s_Own_Hybrid_Car_

      That's a SERIAL hybrid, not the (infinitely) more common PARALLEL hybrids. If someone doesn't say, it's safe to assume they mean the latter... You, however, meant the former, and didn't bother to specify either.

      why do you think these hybrids aren't being produced and sold at your local car dealer by now

      The car described had a TOP speed of 45MPH, which NOBODY would accept.

      They only got 60MPH in their (honest) test, which isn't any better than a conventional diesel.

      I'm a big supporter of serial hybrids myself, but it certainly wasn't practical in the 1980s, and that article isn't proof of much of anything.
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
    20. Re:FYI by JonathanR · · Score: 1

      I stand by every thing I said in my previous post.

      Sure, diesel cycle makes use of a detonation type combustion. But what does detonation produce? A rapid pressure rise in the cylinder. Ahhh.

      Unlike the diesel cycle, the Otto cycle requires ignition prior to TDC to achieve maximum BMEP, as a result, has a slower cylinder pressure rise. The Diesel cycle is not fuelled until TDC or very close to it. I'm not talking about the compression pressure rise, the rate of which is similar in magnitude for both cycles. Having said that, this is also faster (as a function of crank angle) with the diesel, as the compression ratio is higher.

      You are also totally incorrect in saying that diesels are "extremely rich-running". Nothing could be further from the truth. Diesel power/speed control is effected by fuelling timing and duration only. This can only be accommodated because they are inherently lean running, which is why they don't require throttling to maintain a near stoichometric fuel/air ratio for low speed/load operation.

      On the subject of energy density of the two fuels, ULP is typically around 32 MJ/litre, whereas diesel is around 39 MJ/litre. I'd hardly call this "exceedingly higher".

    21. Re:FYI by Anonymous Coward · · Score: 0

      Generally, you're right, but there are exceptions. Honda's new diesel engine is aluminium, for instance. Hope they bring it to the states after the low-sulfur switch.

    22. Re:FYI by BLKMGK · · Score: 1

      I'm interested in a hybrid that folks can drive to and from work. Bus and delivery vehicles are an excellent start but I'd like to see a Prius with a diesel :-) I know that some have begun building these sorts of vehicles but they aren't here yet. In fact next year there won't even be any TDI here due to emissions regs changing and the fuel switchover. Come 2008 I expect to see alot more availability and maybe even some widespread biodiesel sales. Figure a biodiesel powered Prius sized vehicle that's hybrid with Li-Ion batteries onboard would make for some serious MPG. Build it out of aluminum and C/F tosave even more weight.... Sadly it would cost a mint and no American automaker is likely to make it since they seem fixated on bigger bigger bigger SUV. Bleah!

      --
      Build it, Drive it, Improve it! Hybridz.org
    23. Re:FYI by BLKMGK · · Score: 1

      I disagree. Hybrids are currently no better at highway speeds because they use the gasoline engine at those speeds. How about we use a diesel instead? The VW Lupo was supposedly getting 85MPG and Jetta TDI can get as high as 50MPG in highway settings. Now augment that with a little electric at speed and see where you end up. In stop and go a diesel vs a gas hybrid won't see much advantage but on the highway it certainly would. Combine the strengths of the two drivetrains - diesel for highway electric for city.

      Diesel idle effeciently, yes, however no motor running vs any motor running is going to be an easy call. Diesel engines also aren't any harder to start than a gas powered model - I know because I am DRIVING one now. Starts right up with no glow plug issues etc. Yeah, on a cold day it will take longer when cold but the electric could already be moving on it's electric motor while the diesel motor was warmed\fired. I don't see "hard starting" as an issue.

      Lastly, why would a diesel hybrid be significantly heavier? Yes, the diesel would likely be all iron but in a small displacement 3cylinder I don't see that being too much of an issue.

      Hrm, I also wonder about a diesel driving a generator ala hybrid electric locomotive. Dunno' how that would be any better but am curious.

      --
      Build it, Drive it, Improve it! Hybridz.org
    24. Re:FYI by AvitarX · · Score: 1

      A reporter at Le Mans said the Audi entry to the compatition (Diesel) was very quite compared to the other cars. He went as far as saying your could "drive it through the suburbs and noone would call the police."

      --
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    25. Re:FYI by evilviper · · Score: 1
      Hybrids are currently no better at highway speeds because they use the gasoline engine at those speeds.

      Yes, but they don't use electric at highway speeds BECAUSE it couldn't do any better. The electricity has to come from somewhere. Siphoning power off the ICE to the generator, to turn the electric motor, would be completely wasteful.

      For the most part, hybrids only work because gasoline ICEs are terribly ineffecient at lower RPMs (where diesels are not), and running the engine at a higher RPM to charge the battery at the same time, results in nearly-free electricity.

      Now augment that with a little electric at speed and see where you end up.

      Hybrids aren't MAGIC. You need to get the energy from somewhere. You can't just make anything hybrid, and automatically get more power out of it. There has to be some major ineffeciency in the engine that you can use electric to overcome or avoid.

      Diesel engines also aren't any harder to start than a gas powered model - I know because I am DRIVING one now.

      First of all, you really shouldn't be driving your car while reading and posting on /.

      I didn't mean hard for YOU to start, as computers can be made to easily handle issues that bother people. I mean "harder" as in requiring much more electrical power from the battery. Since electricity isn't free, that prospect may make it counter-productive to shut it down at most stop lights.

      Lastly, why would a diesel hybrid be significantly heavier?

      Diesel engines are much higher compression (pressure) and higher tempuratures. As such they need stronger, heavier materials.

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    26. Re:FYI by evilviper · · Score: 1
      They only got 60MPH in their (honest) test, which isn't any better than a conventional diesel.

      Err, that was supposed to be 60MPG.
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
    27. Re:FYI by BLKMGK · · Score: 1

      For the most part I agree and yes I understand what you said before you explained it, I'm not new to automotive mechanicals.

      That said - electric to augment the diesel at speed might not be a net loss. Even a small amount of additional help could yield gains - yes at the expense of drawing down the batteries. For instance look at the steam generation system Mercedes or BMW ios\was looking at to gain small amounts of power from the heat of the exhaust. That thing makes VERY little power but is supposed to yield gains large enough to be worthwhile. I think in the end that system will be a mess but if the car had electric already a small boost might not be ineffecient. I'd also point out that for passing the added push from an electric would be pretty welcome if the primary motivator is a 3banger slug. Having seen a hybrid or two stomp on it in rush hour traffic at highway speeds I can tell you that they certainly seem to have some impressive acceleration - electrics are good for that.

      Hard to start - yes I understand that higher compression will be harder to crank and draw some additional juice over and above a gas motor. I still believe it might be worthwhile and since some manufacturers are looking at it perhaps there's some gains to be had. I believe there will be but until it's actually produced I cannot be 100% sure. I do think an electric for around town with a diesel for the highway is a good way to go even if you do use some added juice in town for starts. It need not be the same battery pack providing power to everything..

      As for weight - yes I'm aware that the engine needs to be robust. In fact I mentioned in another post that diesels weigh more and aren't made from aluminum due to the stresses involved. However I'd argue that the added highway effeciency could offset the weight penalty. Currently hybrids perform great in town and somewhat crappy on the highway, having the best of both worls sounds like a good idea to me. It remains to be seen if it will sell however so I guess we'll have to just wait and see...

      --
      Build it, Drive it, Improve it! Hybridz.org
    28. Re:FYI by evilviper · · Score: 1
      Even a small amount of additional help could yield gains - yes at the expense of drawing down the batteries.

      You still haven't explained where the batteries are going to be charged from. Unless you're going to plug-in your diesel hybrid, I can only see this thing wasting more fuel than it saves, all the while costing more, weighing more, and requiring more maintenance than a straight diesel.

      For instance look at the steam generation system Mercedes or BMW ios\was looking at to gain small amounts of power from the heat of the exhaust.

      Again, that's practically-free energy, due to ineffeciencies.

      And to make use of that, you don't even need a hybrid. Use that steam to power your headlights and car battery, and you'll more than exhaust it.
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
    29. Re:FYI by BLKMGK · · Score: 1

      The used power would be charged from the diesel while cruising, it's not "free". Case in point - idling at a light yesterday I watched my average MPG for that trip drop 1.5MPG just from the 2minute idle. This on a 15mile trip. That was from 47MPG downwards BTW so it's not like I was running around stomping on it. I'd imagine that idling overnight uses more fuel than you realize since idling in traffic is knocking my MPG down a noticable amount on a more effecient engine. I'd bet that if I turned the engine off at each light and then cranked it up to leave I'd add noticable MPG - yes recharging my cranking battery from the engine. As an aside - the A/C knocks off about 5MPG it seems, still testing.

      Accelerating from a light is where the diesel is LEAST effecient (just like gas), even doing it slowly it's not unusual to see single digit MPG until you're up to at least 15-25MPH. Now, suppose that the car was powered by electric up to a reasonable cruising speed and *then* the diesel kicked in - just as it does today with gas engines. To think there would be no MPG gain is silly, Diesels may be more effecient than gas engines but that doesn't mean there are no ineffeciencies to be overcome. Manufacturers are already looking into diesel hybrids and I'll bet we see them so argue against them all you want but there are gains to be had despite the added weight. One of the reasons it's not already here is the perception that diesels are smelly and if you've ever visited a pump to fill one you can understand why not everyone might want it in their driveway. http://www.wired.com/news/autotech/0,2554,66949,00 .html Hrm, 20%+ more effecient than a comparable diesel in OEM testing, still think there are *no* gains to be had?? I told you earlier the OEMs were looking at it and more than one is.... http://www.planetark.com/dailynewsstory.cfm/newsid /27514/story.htm

      As for plugging in, sure why not? Prius owners are already modifying their cars to allow this and I'd be willing to do so too. A drive to work for me could almost be done fully electric in a modified car except for some sprints at highway speeds where a diesel could kick in at it's most effecient. Probably not a high powered fun ride but for commuting I wouldn't care. As it is I came close to purchasing a hybrid but went diesel for the added room\comfort and MPG that was somewhat close city and often better highway. Getting the best of both worlds would be fine by me!

      --
      Build it, Drive it, Improve it! Hybridz.org
    30. Re:FYI by evilviper · · Score: 1
      yesterday I watched my average MPG for that trip drop 1.5MPG just from the 2minute idle. This on a 15mile trip.

      Well, you're being just a bit vague, here. Was this AFTER a 15 mile trip, or near the beginning of the trip?

      If you're using the A/C (as you mention later) that could account for the difference as well. Otherwise, I can't account for that, more than to say you've got an unusually ineffecient engine at idling.

      even [accelerating] slowly it's not unusual to see single digit MPG until you're up to at least 15-25MPH.

      Sounds like the lowest gear in your transmission isn't nearly low enough. Most diesels (in fact most cars I believe) don't get a 10x performance penalty when accelerating.

      Of course, both of these issues could be easilly dismissed if your MPG computer is simply buggy or incorrect in certain specific senarios.

      so argue against them all you want but there are gains to be had despite the added weight.
      ...and initial expense, and added maintenance costs, and added repair costs, etc. Hybrids like the Prius already take a long time before they come out cheaper than their conventional counterparts.

      Hrm, 20%+ more effecient than a comparable diesel in OEM testing, still think there are *no* gains to be had??

      See above. I never said there were no gains.

      Besides, car companies claim nonsense in their "tests" all the time. It is all hype, to be taken with a grain of salt.

      Even if they get that in the real world, that would (apparently) mean only half the improvements you see with gasoline hybrids, according to the numbers in the beginning of that same story.

      As for plugging in, sure why not?

      That is an entirely seperate discussion on it's own, which is the only reason I mentioned it. I'd like to see plug-ins myself, but (current) hybrids aren't very effective plug-ins, so it should be kept a wholly seperate issue.
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  12. Yeah, but... by dgatwood · · Score: 5, Funny

    ...the ping times are a bitch.

    --

    Check out my sci-fi/humor trilogy at PatriotsBooks.

    1. Re:Yeah, but... by x2A · · Score: 4, Funny

      It took 5 days for a car my secretary sent to reach me, because it got stuck in traffic. You see, cars aren't like trucks, you can't just dump loads of stuff onto them. Cars are a cereal of tubes, they run on... I'm not finished, they run on milk in a bowl. Excelsior!

      --
      The revolution will not be televised... but it will have a page on Wikipedia
    2. Re:Yeah, but... by doubtless · · Score: 2, Funny

      did your secretary notify you of the internet I sent to you last week?

      --
      geek page at KY speaks
    3. Re:Yeah, but... by TooMuchToDo · · Score: 1

      Considering it takes a quarter mile to turn around, roundtrip TTL would indeed suck =)

  13. You're wrong. by Poromenos1 · · Score: 2, Funny

    You're full of it. The article is 100% true.

    This post was designed by a computer.

    --
    Send email from the afterlife! Write your e-will at Dead Man's Switch.
    1. Re:You're wrong. by ampathee · · Score: 2

      You can tell it's a computer by the courier typeface.

  14. After seeing Top Gear Series 8 Ep 1... by strredwolf · · Score: 1

    ...I guess that they'll have to rip up the New Mexico Salt Flats so noone else can give it a go.

    --

    --
    # Canmephians for a better Linux Kernel
    $Stalag99{"URL"}="http://stalag99.net";
    1. Re:After seeing Top Gear Series 8 Ep 1... by Cederic · · Score: 1


      That's just a little too fucking obscure. Try reminding us all what was in that particular show?

  15. I followed the link... by agentcdog · · Score: 4, Funny

    and was surprised to see that this thing really runs on 440 AA batteries. Quite the misleading article. Diesel indeed.

    --
    If I understand Dirac correctly, his meaning is this: there is no God, and Dirac is his Prophet. -Pauli
  16. British Engineering by dzelenka · · Score: 0, Flamebait

    "... the JCB444 engine has been one of the most significant success stories in the company's history, and in the annals of British engineering."

    From what I've seen of British engineering, you don't need to accomplish much to rank highly in those annals. If the engine doesn't fall apart during testing they crack the top ten.

    --
    Bah!
    1. Re:British Engineering by Droid+Rot · · Score: 1

      "If the engine doesn't fall apart during testing they crack the top ten." ...and next time you take a flight on a jet airplane, just remember who invented the jet engine.

    2. Re:British Engineering by menkhaura · · Score: 1

      The Nazis?

      --
      Stupidity is an equal opportunity striker.
      Fellow slashdotter Bill Dog
    3. Re:British Engineering by Anonymous Coward · · Score: 0

      "British engineering." Congnitive dissonance. Oxymoron.

    4. Re:British Engineering by RegularFry · · Score: 1

      No.

      --
      Reality is the ultimate Rorschach.
    5. Re:British Engineering by BiggerIsBetter · · Score: 2, Funny

      Joke all you like, but it's very difficult to make an engine that leaks oil continuously yet never actually falls apart.

      --
      Forget thrust, drag, lift and weight. Airplanes fly because of money.
    6. Re:British Engineering by Anonymous Coward · · Score: 0

      That's a Rocket engine. You fucking moron.

    7. Re:British Engineering by Anonymous Coward · · Score: 0

      Whilst British engineering isn't perfect, at least it's better than american! Check out Clarkson's experience with his ford GT, or the widely reported hideous finish in the Corvette. If you want to slate a nation for poor quality, go for the yanks of italiens, not britain. Of course, no-one comes close to the japs when it comes to build quality. British engineering has historically been awesome. Someone's already mentionned the jet engine, but what about the Merlin engine before that? It actually saved the mustang's ass as it was a true POS prior to them dumping in the merlin. Lets also not forget that the classic rover V8 - originally designed by Buick - was improved by the British as it had hideous reliability issues. Last I heard, Rolls-Royce had fairly good build quality too...

    8. Re:British Engineering by thanuk · · Score: 1

      Errm, have you heard of the industrial revolution? The steam engine, iron and steel production, automated textile production, steam trains, iron clad ships. British.

    9. Re:British Engineering by jeremyp · · Score: 1

      No it isn't. It's a jet powered aeroplane.

      --
      All I want is a secure system where it's easy to do anything I want. Is that too much to ask ~~ Randall Munroe
    10. Re:British Engineering by Anonymous Coward · · Score: 0

      I think you'll find most of those are in fact SCOTTISH! (go re-read your history books)

  17. In other news.. by Anonymous Coward · · Score: 2, Funny

    Ford has announced that they will begin testing a prototype computer built entirely by a car. The car used to design the computer is actually a Beowolf cluster of recalled Explorers and Expeditions from the Firestone debacle of some years ago.

    "We think we can use the characteristics of our best-selling cars to build huge, powerful computers with more space than anyone else", said a Ford spokesperson. "Our latest prototype model already has eight CPU cores in a V shape. It can seat seven hard drives (two of which are situated at the front of the enclosure, visible through the glass front bezel of the machine) and we're making lots of strides in how we can build tires on to the thing so we can drive it around the office while we download our emails and pick up our kids from soccer practice."

    Chevrolet declined to comment on whether or not they were working on something similar. All they said is that they think Fords suck and tried to sell us on a new Corvette. "It's an American Revolution", said the salesman we interviewed at the local Chevrolet dealership.

    1. Re:In other news.. by gbrayut · · Score: 1

      But the important question is how many cup holders will it have?

  18. And a million engies by Deliveranc3 · · Score: 1

    RTW...

    /CIS Hat We're coming for you /CIS

  19. Neat by MobileTatsu-NJG · · Score: 2, Funny

    I found a pic of it here.

    --

    "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

  20. Turbo Boost by Megane · · Score: 4, Funny

    The combination of the altitude (4,000ft) and the higher air temperatures affected the performance of the second engine, which was generating insufficient turbo boost pressure and led to days of work for the small team of engineering experts.

    Don't they know that K.I.T.T. can only use the Turbo Boost once per episode?

    --
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    1. Re:Turbo Boost by nickmalthus · · Score: 1

      I believe the drivers words right before acceleration were "give me all you got K.I.T.T"

      --
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    2. Re:Turbo Boost by Anonymous Coward · · Score: 0

      And his words during the acceleration as some old granny staggered out into his path.... "oh shit...."

  21. Speed is nice and all... by corychristison · · Score: 1, Funny

    ... but I still want my goddamn flying car!

  22. first car designed entirely by computer? by euice · · Score: 1

    as the first car designed entirely by computer Just out of curiosity: Who actually does believe that?

    1. Re:first car designed entirely by computer? by delinear · · Score: 1

      The basis for the claim that the car is wholly designed by computer seems to be that it was all created using CAD, etc - no non-computer design processes were employed at all.

      For the claim to be true, I imagine it would mean that at no point during the design process did any of the designers pick up a pen and doodle out a solution to a sticky problem, or to quickly compare a couple of different ideas without having to fire up CAD. At no point did they wake up at 2am with that "Eureka" moment and quickly jot down their idea before it went out of their head.

      I'm not saying that's not possible, of course, but if it's true then it's very impressive. My job is almost entirely computer based and yet even I have a notepad and pen by me all the time for sketching stuff out quickly, or working on ideas while I'm waiting for stuff to boot, load, deploy, etc. Or is there some kind of input threshold below which you can discount that input - i.e. if less than 5% of the car was designed on paper, are you allowed to say the car was not designed on paper at all?

    2. Re:first car designed entirely by computer? by euice · · Score: 1

      I actually believe that it can be done, what I do not believe is that it's the first car completely designed on a computer.

  23. Microparticulates, anyone? by Anonymous Coward · · Score: 0

    Die-sells are worstest for polluting the atmosphere - that one shared thing - with small particles that get lodged in people's lungs, never to get out again. Maybe the JCB digger folk were out to see how quickly they could do this, or maybe they are cheapskates, not willing to fork out for 'petrol' and set a proper record, i.e. the land-speed record.
    However, does anyone know what the record is for a proper vehicle, i.e. not a rocket on a sled, but where the wheels are driven? Maybe this is it, but then again the die-sel record is not up to much, is it? Germans do that speed every lunchtime nipping out for a burger via the autobahn...

  24. Any Greens Thrust past the sound barrier. by Brigadier · · Score: 1

    from the link .....................
    Thrust SSC (Super Sonic Car) is a British designed and built jet propelled car developed by Richard Noble and Ron Ayers, which holds the world land speed record. It is powered by two afterburning Rolls-Royce Spey engines, as used in British variants of the F-4 Phantom II. It is 54 ft (16.5 m) long, 12 ft (3.7 m) wide and weighs 10.5 tons.

    On October 15, 1997 in the Black Rock Desert in Nevada USA, driven by Andy Green, ThrustSSC became the first land vehicle to smash the sound barrier, reaching a speed of 1227 km/h (763 mph).

    http://www.speedace.info/thrust_ssc.htm

  25. Lights by donutello · · Score: 1

    Something tells me it'll be the red and blue lights that will bother him more than the red and green kind.

    --
    Mmmm.. Donuts
    1. Re:Lights by kfg · · Score: 1

      Max speed of an AH-64 is 184 mph.

      During the 1955 Mille Millia Stirling Moss overhauled a twin engine prop plane with this Mercedes 300SLR.

      One of the causes of on duty death among police officers is crashing in high speed chases. Their equipment is not equal to some of the serious speed hardware out there among the public.

      Sure, there's the roadblock thingy, but haven't you ever seen Smokey and the Bandit?

      KFG

    2. Re:Lights by dakirw · · Score: 1
      Something tells me it'll be the red and blue lights that will bother him more than the red and green kind.
      Only if the red and blue lights can catch up. Another likely problem is the slow driver that likes to drive in the fastlane. At the speeds that he's talking about, he won't be able to switch lanes in time. Or trucks passing - they're a plague sometimes while driving on the I-5.
    3. Re:Lights by scheme · · Score: 1
      Only if the red and blue lights can catch up. Another likely problem is the slow driver that likes to drive in the fastlane. At the speeds that he's talking about, he won't be able to switch lanes in time. Or trucks passing - they're a plague sometimes while driving on the I-5.

      It's really hard to beat radio waves telling someone to setup a roadblock 10 miles down the road.

      --
      "When you sit with a nice girl for two hours, it seems like two minutes. When you sit on a hot stove for two minutes, it
    4. Re:Lights by stunt_penguin · · Score: 1

      Which is why I always think police vehicles & helicopters should come equipped with these for reckless idiots with no regard for the lives of others.

      Bad boys bad boys, whatcha gonna do, whatcha gonna do when they designate you? =)

      --
      When the posters fear their moderators, there is tyranny; when the moderators fears the posters, there is liberty.
    5. Re:Lights by Nutria · · Score: 1
      It's really hard to beat radio waves telling someone to setup a roadblock 10 miles down the road.

      It takes time to set up a road block (the relevant assets may not be near the intersection you want to block it at), so the offending vehicle might have blown by it already.

      If the police decide to put the road block even further down the highway, and the car has a police scanner, the driver could change route to avoid the block.

      --
      "I don't know, therefore Aliens" Wafflebox1
  26. But can it time travel? by Anonymous Coward · · Score: 0

    88 miles per hourrrrr!

  27. did you get her mail order? by Anonymous Coward · · Score: 0

    ...or did you surf the web to find your wife to be?

    I'm sorry, butI reckon you set yourself up for that one.

  28. Brilliant! by Anonymous Coward · · Score: 1, Interesting

    FTA:

    The team has also had to alter the GPS software which measures the car's speed, after it kept cutting out at 223 mph because it thought that was too fast ... So if you have had that speed monitoring software installed in your vehicle just drive real fast and leave them wondering :)

  29. Designed? by quanminoan · · Score: 2, Insightful

    I RTFA and visited the site but exactly how is this car "designed entirely by computers"? More likely is that the computers optimized each component through simulations based on human input. Can anyone fill us in to how exactly the computers helped design the car?

    1. Re:Designed? by Score+Whore · · Score: 1

      Somebody mod parent up to +20.

  30. Funny though by Fei_Id · · Score: 2, Informative

    I believe the fastest gasoline powered vehicle; was a single engined vehicle. This diesel is a twin engine. Aerodynamics play a HUGE HUGE factor in top speeds. It takes an enormous amount of horsepower just to increase the top speed by a small amount. Same reason why bikes suck so bad on the top end. Their power to weight ratios on paper show ridiculously fast acceleration numbers possible at higher speeds. But in reality; they are beaten by lower power/weight cars for higher speed runs; solely because of aerodynamics. That and power/weight means much less at higherspeeds. Its more about horsepower and gearing. Ok I'm talking to much now. PS. Ever seen a diesel drag racing vid of a semi-fast one? They blow huge columns of thick black smoke.

  31. Built for a PC by SeaFox · · Score: 1
    Several sources are reporting that the first entirely computer designed car, the JCB Dieselmax [CC], has broken the diesel speed record [CC] of 236MPH at a speed of 328MPH.

    Consumers, however, rejected the car due to lack of a stereo, air conditioner, and cup holders.
  32. Fast? by Tired+and+Emotional · · Score: 1

    we have semis going faster than that on the freeway.

    --
    Squirrel!
  33. First car 100% computer designed ? I think not. by Anonymous Coward · · Score: 0


    Plenty of other cars have been designed using CAD systems, long before now.

    Why can't you people skip the hype and just report facts, for a change ?

  34. Forget fast...... by Rank_Tyro · · Score: 4, Funny

    ...."we need ludicrous speed".

    --
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    1. Re:Forget fast...... by imboboage0 · · Score: 1

      I believe things like that are infinitely impossible.

      --
      Honesty may be the best policy, but by process of elimination, dishonesty is the second best policy.
  35. It uses 2 backhoe engines! by gurudyne · · Score: 2, Informative

    One of the design factors for the original engine was to function as a backhoe counterweight. This made the engine block and other components so robust that the engine could easily survive the 2-stage turbocharging.

    They used 200 liters of ice for cooling, had diesel particulate filters on the exhaust, and got 4 miles to the gallon. The car had only 2 gallons of fuel to start. They used a tractor with the same engine, untweaked, as a push vehicle.

    --
    Hey, Mom! Is it beer, yet?
  36. Conversions by cheese-cube · · Score: 2, Informative

    For the more metrically inclined among us, 236 M/h equals 379 Km/h (105 m/s) and 328 M/h is 527 Km/h (142 m/s). While the imperial system does have its merits, 527 Km/h looks so much faster than 328 M/h :P

  37. The best line of the story: by schwep · · Score: 1

    "Since arriving in America, the 30-strong team has had to enlist a local bar to help with its laundry after finding the hotel had no suitable facilities."

    Bars are great! Beer and laundry facilities... does life get better?

  38. Why care? by bjackson1 · · Score: 2, Interesting

    This is a serious question. Why should I care how fast we can get a diesel engine based car to go? Last time I checked the fastest I drive is around 80mph. I'd be much more interested to see more efficent engines, than more powerful. However, could this technology trickle down to produce more efficent engines? Is there any practical application to this, besides pure speed?

    1. Re:Why care? by Anonymous Coward · · Score: 0

      The simple answer to you question is that diesel engines are hugely superior to gasoline engines in efficiency when compared. You get much more bang for your investment in this technology, except that diesel engines are hugely less tolerant of sloppy manufacturing processes. The automakers do not wish to invest in the tooling costs to bring this benefit to their customer. Also, the oil infrastructure would have to change drastically to make it a reality. It's a lose-lose proposition for both the automakers and the oil barons, so the customer loses.

    2. Re:Why care? by donaldm · · Score: 3, Interesting

      Surprisingly people do base their car purchase on how fast a car can go and the brand that can do this.

      I just recently brought a VW Passat 2.0 TDi with Direct shift gearbox and there are a few words that describe it. Excellent performance, economical (approx 5.5l/100km (approx 42 US mpg) to 7.0l/100km), comfortable seating (5), large boot, luxury mod cons and cheaper then its petrol equivalent. Granted there are some petrol cars that can beat it off the lights (if you are into this) but it seems strange that in normal Drive (there is sports and tiptronic as well) I still leave most cars behind and I am not even trying. On the open road I can easily keep up with the traffic and the engine is very quiet although there is a little bit of diesel rattle at idle. That's not bad for a engine that is rated at 103kW (138hp) with 320NM torque and there are better engines coming (with about the same fuel economy) within a few months.

      Modern diesel cars are very competitive in price between their petrol equivalent. It must also be noted that 50% of cars sold in Europe are diesel although in the US and in Australia it is nowhere near that but it is increasing.

      Before anyone buys a diesel car please do some homework taking into account the price difference between the diesel and its equivalent petrol engine (the VW Passat was cheaper but some other diesel cars are not) also work out how far you are going to travel in a year and the cost in fuel to to this. In addition work out the difference in servicing costs (diesel should be cheaper but be careful). Just about all other things such as tyres, registration and insurance should be the same.

      Use Google to search on diesel, bio-diesel, comparison between petrol as well as other fuels such as hydrogen, alcohol ... etc and it gets very interesting.

      --
      There ain't no such thing as proprietary standards only proprietary formats. Standards are by definition open.
    3. Re:Why care? by hcdejong · · Score: 1

      In this case, there probably won't be any practical applications. It's a publicity stunt, and a showcase for JCB's diesel engines: the engines in the Dieselmax are basically stock engine blocks with huge turbochargers bolted on. The only reason to care is because it's cool.

      For practical applications of high-performance diesel technology, take a look at Audi. They just won the Le Mans 24h race using a diesel engine. The lessons learned there (fuel consumption/efficiency, weight vs. performance and reliability) should be useful for roadgoing diesels as well.

    4. Re:Why care? by bhtooefr · · Score: 1

      I hate you.

      All we get for 2006 with TDIs is leftover Mk4 Golfs (which have now run out - the Mk5 Golf, or, I'm sorry, it's called the Rabbit, came out halfway through the 2006 model year), some Mk5 Jettas, and some New Beetles.

      That's it.

      And only the 1.9L 100hp PD-TDI.

  39. Altitude? Is this a flying car? by kimvette · · Score: 1
    The combination of the altitude (4,000ft) and the higher air temperatures affected the performance of the second engine,


    Altitude? Altitude? Is this the flying car the Jetsons promised us?

    Or, perhaps they mean elevation?

    Damn it, the Jetsons lied to us, and so did this article! ;)
    --
    The Christian Right is Neither (Christian nor right). See: Matthew 23, Matthew 25, Ezekiel 16:48-50
    1. Re:Altitude? Is this a flying car? by Snorpus · · Score: 1
      And it seems to have surprised them that the elevation was 4000 feet. Didn't they check a map or Topozone before they left Germany?

    2. Re:Altitude? Is this a flying car? by xav_jones · · Score: 1
      Altitude? Altitude? ... Or, perhaps they mean elevation?
      What's the difference?

      altitude
      n 1: elevation especially above sea level or above the earth's surface;
      -- From WordNet (r) 2.0

  40. Paging Sir Lucas... by wramsdel · · Score: 1

    Good thing they run the tests during the day...to give those Brits a fighting chance.

  41. They took slashdots advice.. by ModernGeek · · Score: 1

    ...They took our advice. A person or organizations prosperity is parallel to the seriousness taken while reading slashdot.

    --
    Sig: I stole this sig.
  42. Beating Mercedes? by CompMD · · Score: 1

    This is neat and all, but Mercedes did it almost 30 years ago with a lot less technology. They made a variant of the exotic C111 using a modified version of their 617 series 3.0L inline-5 cylinder turbocharged engine to get up to 325km/h. If I'm not mistaken, that is the car JCB has beaten.

    I wouldn't call JCB's record making that big a deal over the C111. Mercedes had a car that could do _laps_. It appears as if the JCB won't even make it out of earshot before it runs out of fuel. Also, Mercedes engineers didn't have hundreds of thousands of dollars of simulation software that JCB had. Their website shows UGS as a partner. I have a few seats of NX4, Teamcenter 10, SolidEdge 19, and Femap. It's not cheap. JCB's engine is over 4 liters displacement. Mercedes' was 3. Not to mention, JCB needs TWO of their engines to accomplish this task. JCB's engine was derived from backhoes, whereas the Mercedes engine was derived from production cars. Heck, I've got a couple of those engines. I don't think the Dieselmax could beat a C111 with only one engine.

    Yes, what JCB has done is pretty cool, and I think they deserve credit for making a record breaker. However, I don't think that a whole lot of actual engineering progress was made in the development of their Dieselmax.

    1. Re:Beating Mercedes? by Anonymous Coward · · Score: 0

      You should note that it is over 500km/h

    2. Re:Beating Mercedes? by Professeur+Shadoko · · Score: 1

      You don't seem to realize that going over 500 km/h is WAY harder and requires MUCH more energy than 325 km/h.

      Air friction increases faster than the square of the speed, for instance.

    3. Re:Beating Mercedes? by lemonylimey · · Score: 1

      The previous record was 235mph (378km/h), set by the Thermo King Streamliner in 1973, which the Dieselmax broke by 115mph. I don't know anything about the Mercedes car, but early last week the Dieselmax was having difficulty bringing the rear engine online and did actually end up doing a 226mph (360km/h) run on just the one engine. :)

  43. Diesel efficiency? by durnurd · · Score: 1

    If diesel is so efficient, then why haven't we invented a diesel-powered Delorean yet? My guess is that if running on diesel power, the flux capacitor requires speeds in excess of 300 MPH. So soon enough, we'll be creating time paradoxes left and right! (Is "soon enough" a phrase that is applicable to time travel?)

    --
    --Edward Dassmesser
    1. Re:Diesel efficiency? by Anonymous Coward · · Score: 0

      Because the DeLorean ran on the PRV engine? Perhaps you could make a diesel DeLorean by swapping out the engine from a Peugeot 505 or Volvo 760, but why bother?

      Wait, you meant a DeLorean time machine?. Never mind.

  44. Obligatory Futurama Reference by TheoMurpse · · Score: 1
    Is there any practical application to this, besides pure speed?
    Yes: as you approach the speed of light, time speeds up around you, and when you finish your race it will be the year 3000; no longer will you even need oil from the Middle East. Instead, you'll run your car on whale oil.
  45. Comment removed by account_deleted · · Score: 2, Interesting

    Comment removed based on user account deletion

  46. But this thing uses TWO engines. by Khyber · · Score: 0

    With two engines I'd EXPECT to be getting much higher speeds. Even if one engine is used purely for a turbo, I'd expect to see a split in the transfer of power. This does *NOT* surprise me at all. Hell, if a Campagna T-Rex had two engines, one for turbo/mass air induction, I'd see that beating almost ANYTHING on the road today without any extra modification. It already takes right hand turns at well over 70 MPH without squealing the back tire. And yes, I *HAVE* test-driven one. Memphis is one of six dealerships that I'm aware of in the USA.

    --
    Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    1. Re:But this thing uses TWO engines. by Anonymous Coward · · Score: 0

      Just AMAZING! It took you six sentences to prove to the world that you have zero understanding of mechanical devices. By the way, that "T-Rex" couldn't possibly hold up to a Ford GT, which looking at the specs comparitavly, would eat it's lunch, and still be hungry.

    2. Re:But this thing uses TWO engines. by Cederic · · Score: 2, Insightful


      Oh please. That thing's slow to accelerate (compared to several production cars, let alone production motorbikes) and adding another engine will massively damage its weight. Its top speed is practically pedestrian - my French family saloon can go as fast.

      Incidentally, how do you define a 'right hand turn'? Not that turning matters on a straight-line speed record (although keeping the thing in a straight line becomes interesting - Andy Green had the wheel turned to full lock trying to keep in a straight line on the land speed record run).

    3. Re:But this thing uses TWO engines. by donaldm · · Score: 2, Informative

      Looked up this "bike" (3 wheels). Nice! but many bikes can beat most cars from a standing start, however some diesel cars (keeping on-topic) can actually go much faster than 140mph but there are very few places in the world that you can do this legally much less safely. I had a Subaru WRX (there are many cars that can beat this) that could easily reach this speed but you needed to go to a track to do it. Get caught by the cops and its by-by license and "watch your fingers" as the cell door closes.

      Anyway back on topic.

      A jet or rocket engine could easily beat any road vehicle in a straight line but what we are looking at here is a diesel powered car with mechanical linkage from engine to road wheels. I tried a Google search and this is definitely a first although they say they are going to try for 400mph. Should be interesting since to win as the fastest internal combustion engine car they have to beat the following.

      For petrol internal combustion engine so far (note the date):
      When: November 13, 1965
      Where: Bonneville Salt Flats, USA
      Who: Bob Summers USA
      Car Name: Goldenrod
      Speed: 409.277mph, 658.526kph (over 1 mile)

      All other cars after this have been jet(turbo fan) or rocket. Then again none of them are street legal.

      --
      There ain't no such thing as proprietary standards only proprietary formats. Standards are by definition open.
    4. Re:But this thing uses TWO engines. by bhtooefr · · Score: 1

      Actually, the Burkland Streamliner holds the piston-engine land speed record of 417.020 MPH, set in 2004. ;)

  47. A Windows user would say: by Anonymous Coward · · Score: 0

    It looks like you're designing a car.

    Would you like help?

    (*) Get help designing the car

    (*) Just design the car without help

    [ ] Don't show me this tip again

  48. Maybe you should step into the 20th century? by Gordonjcp · · Score: 1

    Modern diesels (say, designed in the past 25 years) aren't much noisier than petrols, and are a hell of a lot cleaner. I think the big problem is that American manufacturers just can't make a decent engine, either petrol *or* diesel. Pretty much all the US V8s I've heard have been mechanically *much* noisier than anything else - probably because of their antiquated pushrod designs. Did you know the rest of the world has moved onto overhead cams now?

    1. Re:Maybe you should step into the 20th century? by level_headed_midwest · · Score: 1

      And with the exception of GM (well, and the Dodge Hemi and soon-to-be-phased-out 360) all gasoline American V8s are overhead cam:

      Ford: 4.6L 16-valve SOHC V8 (235 hp)- F-150, Explorer V8, Expedition, Mecury Mountaineer V8
                  4.6L 24-valve SOHC V8 (300 hp)- Mustang GT, Lincoln Aviator
                  5.4L 24-valve SOHC V8 (300 hp)- F-150, F-250, Expedition
                  5.4L 32-valve DOHC V8 (300 hp)- Navigator
                  4.6L 32-valve DOHC V8 supercharged (400 hp)- Mustang Cobra
                  5.4L 32-valve DOHC V8 supercharged (500-550 hp)- Mustang GT500, Ford GT

      Dodge: 4.7L 16-valve SOHC V8 (~240-260 hp)- Ram 1500, Jeep Grand Cherokee V8, Jeep Commander, Dakota V8

      And even GM makes a twincam V8 in its 4.6L Northstar line. They just make a lot of pushrod V8s too.

      --
      Just "gittin-r-done," day after day.
  49. Post record laundry by DavidV · · Score: 1

    'Since arriving in America, the 30-strong team has had to enlist a local bar to help with its laundry after finding the hotel had no suitable facilities.' ..paying special attention to drivers underwear after runs at that speed.

    --
    !sig
  50. Re:Diesel motors by YeeHaW_Jelte · · Score: 1

    Come to Europe and get a whiff of my domestic (Renault) diesel car, it runs fine. But I actually have it maintained, as you obviously didn't with your mercedes diesel.

    I know Americans associate diesel with trucks and stuff, but here in Europe a fairly large quantity (I estimate 33-50%) of domestic cars run on diesel. It has better mileage, cheaper fuel (which is still a bigger issue here, even now we pay about twice as much for our fuel as you do) and with turbo and injections they are at least as quick as petrol engines.

    Here in the Netherlands we have a bit of a problem with the diesels producing more NOx particles, but with the EU requiring new cars to have fine dust particle filters, this should not be much of a problem in a few years.

    --

    ---
    "The chances of a demonic possession spreading are remote -- relax."
  51. That's pretty much over 88 MPH... by Bega · · Score: 2, Funny

    ...but does it have a Flux Capacitor?

    --

    THIS IS THE INTERNET. PLEASE PICK UP YOUR SERIOUS BUSINESS SUIT AT THE FRONT COUNTER.
  52. Diesel by Mark_MF-WN · · Score: 1
    I've been working at a fuel retail depot (a gas station, in the "new" English), and I've noticed that a lot of Europeans ask for Diesel (which we don't have, of course, this being Canada with its insanely backwards fuel laws). Nice folks. I like how they're the only ones who NEVER complain about the price of gas. Being harangued by old men about how Iranians are surely paying less than we are for petroleum gets old fast -- especially since our gas is only expensive because of the free-trade deal with US which is what makes Canadians rich enough to afford the cars to put the gas into, the iPods to put in the cars, the nitrogen to fill the car's tires, and enough cheap food that we have to have the car because we're too fucking fat to walk. Damn, I'm going to punch the next old person I see, steal his wallet, and give it to a European.

    Anyway, long story short, North America needs to get back on the trolley as far as diesel goes. It seems to be a great fuel these days, and with biodiesel coming around the bend, it looks to get even better.

    1. Re:Diesel by jawtheshark · · Score: 1

      Well, a Diesel could technically run on coal dust. Check wikipedia if you don't believe me.

      --
      Ahhh...the great dumpster continuum. Many a free computer will be found there. -- sowth (748135)
    2. Re:Diesel by Mark_MF-WN · · Score: 1
      That's so bad-ass that it makes conventionally bad-ass things look positively benevolent with regards to ass.

      That is to say, ah, very impressive. Diesel engines just keep finding new ways to not disappoint me.

    3. Re:Diesel by bhtooefr · · Score: 1

      Canada? C'mon, the grass is MUCH greener for diesels there than it is here. :(

      Except for the little fact that the US EPA is making it so you don't get diesels, due to your market size for VW...

    4. Re:Diesel by Mark_MF-WN · · Score: 1

      Yeah, we definitely do have a strange trading relationship. Fantastically productive and probably a cornerstone of the global economy, but definitely strange. The most functional dysfunctional relationship on Earth.

  53. Diesel by Mark_MF-WN · · Score: 1

    Makes sense. A less extreme version of why automobiles don't burn coal.

  54. British Engineering very good at small scale prod by Flying+pig · · Score: 2, Insightful
    Who does most of the engineering in Formula 1? It employs more graduate engineers in the UK than you would imagine. The trouble with the UK is we are incredibly good at small scale production of highly designed objects, but the poor quality of our management, sales and marketing means we are no good at high volume production - we just don't do high volume customer service. When it comes to breaking records we can churn out things like Thrust 2. We churn out things like the Harrier but we can't build volume commercial aircraft (and BAe wants out of Airbus). JCB make excellent specialised industrial machinery, which is the end use for the Diesels they are testing to destruction in this record breaker. Dyson makes his vacuum cleaners in Malaysia, but the engineering is done in the UK.

    Ford makes its European Diesel engines in Dagenham, and Honda makes advanced cars successfully in the West Country. Give us some decent (i.e. foreign) management and sales to support our engineering efforts, and we are up there with the best.

    --
    Pining for the fjords
  55. That's not a car... by poor_boi · · Score: 1

    ... that's a rocket on wheels.

  56. 30-35mpg? by RMH101 · · Score: 1

    Take it back to the dealer, there's something wrong with it. Particularly on US roads you should be getting 43-51mpg stock. A VW/Audi/Seat/Skoda 1.9 PD130 turbo diesel (130bhp stock) can be software remapped to 180-195 bhp without hurting the economy, too...

  57. European cars by deuterium · · Score: 1

    I took a trip to Iceland a few years ago, and I was surprised to see that the majority of cars were manual transmission (and small). Almost all of the cars you see here in the US are large(r) automatics. You don't often hear it touted, but I've read that a properly operated manual can get 10% better mileage (and are more fun to drive :) than the equivalent standard. I was also surprised, as I mentioned, by the size of many of the cars. You simply can't get a car much smaller than a Mini Cooper here, which is sort of a novelty car. Some might say that this is proof of European sensibility, but I imagine it's largely a product of economic necessity.

  58. Gas vs Diesel by ripcrd · · Score: 1

    Well, you drop off the trailer to save weight and the truck bounces around so much, you feel like you are going to lose a kidney. And that is only at about 40-50mph. I can't imagine a Peterbuilt or a Mac at over 300. Then again, they probably have air-ride and that must help.

    The old yard switchers I drove would bounce you all to hell. And during two winters in Iowa, I had to drive one with chains on to go get fuel. I thought I was gonna puke.

    --
    --Somewhere there is a village missing an idiot.
  59. You'll also find... by Gordonjcp · · Score: 1

    ... that they have something approaching working suspension and brakes, unlike American cars.

    I'm not so sure about "economic necessity", but over here people don't seem to need or want a 500hp engine in an ordinary family car. What do you use an engine that size for, when you've got such low speed limits over there?

  60. Round and round it seems by BLKMGK · · Score: 1

    Well, you're being just a bit vague, here. Was this AFTER a 15 mile trip, or near the beginning of the trip?

    If you're using the A/C (as you mention later) that could account for the difference as well. Otherwise, I can't account for that, more than to say you've got an unusually ineffecient engine at idling.

    I was nearly at the end of my trip when I came to a stop and watched trip average vs realtime MPG. This was after about 12miles or so. I had the A/C off for the entire trip trying to bump overall average up - I "game" the MFD to see how high I can get the trip average :-)

    Sounds like the lowest gear in your transmission isn't nearly low enough. Most diesels (in fact most cars I believe) don't get a 10x performance penalty when accelerating.

    Of course, both of these issues could be easilly dismissed if your MPG computer is simply buggy or incorrect in certain specific senarios.

    The 1st gear in this trans (DSG) is quite low and it shifts before 10MPH. there's no hydraulic coupling in this trans either and during an average accel it won't get above 2K RPMs. Yes, gas vehicles see a drop like this too, perhaps even worse. Accel fueling in a gas engine is something I've tuned a few zillion times on standalone EFI systems. It goes fairly rich if you want it smooth. Low MPG makes sense when you consider the RPMs vs speed. By the time I hit 70MPH though it's in the sweet spot for RPM vs wind resistance. Oh and this MPG computer *is* slightly wacky - it reads about 13% optomistic :-( I suspect it's because they want it to be close when it breakes in. I will be modifying it to correct this after I can get a good reading over multiple tanks. The last one was 36.9MPG in mostly city bumper to bumper (figured by hand vs the computer). Our other TDI was the EXACT same way but is slowly getting a little better. Once adjusted it's fairly accurate by our figuring.

    ...and initial expense, and added maintenance costs, and added repair costs, etc. Hybrids like the Prius already take a long time before they come out cheaper than their conventional counterparts.

    It's not all about costs. I'm willing to pay a reasonable premium to conserve for the greater good - especially on something that would allow us to relieve some our dependance on unstable countries who don't wish us well. Repairs and whatnot don't scare me off - I do my own work 99% of the time and I'd certainly take advantage of a warranty.

    See above. I never said there were no gains.

    Besides, car companies claim nonsense in their "tests" all the time. It is all hype, to be taken with a grain of salt.

    Even if they get that in the real world, that would (apparently) mean only half the improvements you see with gasoline hybrids, according to the numbers in the beginning of that same story.

    You may not have stated it outright but you implied there were no worthwhile gains, that it was an endeavor not worth pursuing. Yes, companies sometimes make exaggerated statements in their press releases, such is life. For what reason would they do this in this case? You seem to argue against a diesel hybrid and when I show you evidence that it's worthwhile and being developed you want to talk about OEM's overstating? Wow...

    Not sure what numbers you're reading but they claim 15-50% gains in distance travelled on a tank over a gas engine in a Gas/Electric hybrid. They next claim 25% MPG gains with a Diesel/Electric hybrid over a comparable diesel vehicle. Diesel vehicles already get better MPG than a gas vehicle, 25-30% over gas according to that article. A diesel hybrid would stack those gains it seems which is\was my point...

    Current unmodified hybrids aren't plug-ins right now so far as I know. They also seem to switch to gas too quickly. Modified for both plug-in and more electric usage MPG goes up a good bit fr

    --
    Build it, Drive it, Improve it! Hybridz.org