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Modded Hybrid Cars Get Up to 250 MPG

artemis67 writes "Politicians and automakers say a car that can both reduce greenhouse gases and free America from its reliance on foreign oil is years or even decades away. Ron Gremban says such a car is parked in his garage. It looks like a typical Toyota Prius hybrid, but in the trunk sits an 80-miles-per-gallon secret -- a stack of 18 brick-sized batteries that boosts the car's high mileage with an extra electrical charge so it can burn even less fuel. Gremban, an electrical engineer and committed environmentalist, spent several months and $3,000 tinkering with his car."

15 of 1,359 comments (clear)

  1. Of course, that's cheating ... by dougmc · · Score: 5, Informative
    If you charge your battery by plugging it in at the house, then you're cheating. MPG doesn't mean much when all the power doesn't come from the gas.

    By this reasoning, I could build a car that has a little 1 horse power engine and a big bank of batteries which are charged by plugging it in at night. I could claim 1000 mpg, but that doesn't actually mean that my car is more efficient than any other car.

    I agree that this may be useful, sort of more of a middle-ground between hybrids and electric cars, but really they should stop making mpg claims.

  2. *NOT* 250mpg by oneiros27 · · Score: 5, Informative

    I've built electric cars. (college solar car team).

    This car does not get 80 mpg. It uses 1 gallon of gas for every 80 miles it travels ... but he gets power from the wall, which had to come from somewhere.

    Although large power plants may be able to make electricity more efficiently, he has to deal with transmission losses, and then storage losses from the inefficiency of battery storage. And he has the extra weight of 18 more batteries.

    The only advantage wall-plugs do on electric vehicles is move where they're poluting -- it moves to the power plant, instead of the point of use.

    Billing any of these cars as '250mpg' unless gallons of gasoline is the only input to the system is a disservice to everyone.

    --
    Build it, and they will come^Hplain.
  3. Re:So like... by Lumpy · · Score: 5, Interesting

    here is the funny part. I have an econo box from 1986 that kills the Prius and Honda hybrid gas mileage.

    Geo metro 50Mpg average, when I drive all highway I get 58mpg

    why does a "hybrid" get much less gas mileage than my old technology simple internal combustion engine with a CARBERATOR? something is very wrong with these hybrids.

    80 mpg for the first 20 miles is great for the stay at home mom that drive to the store or around a little bit. the majority of the american public lives more than that from work. Granted in cities where during rush hour you spend a majority of that time at under 10mph or stopped and these hybrids make great use of that time. but having to buy a $25,000.00 hybrid plud add 80 hours of my time tinkering and voiding the warrenty so I can add another $3000.00 worth of parts to it to finally get a MPG rating that a hybrid should have already had really bothers me.

    How about the fricking SMART CAR already availabe in canada and get's 60Mpg on it's own?

    Hybrids are crap, utter crap until they get on their worst day 50mpg. Let's force the US to allow the importing of the smartcar.

    --
    Do not look at laser with remaining good eye.
  4. Re:That's all good, but.. by k98sven · · Score: 5, Insightful

    The inevitable smart-ass question of "Oh, but that electricity has to come from somewhere!!".

    Consider this:
    Energy content of gasoline: ~45 MJ/kg
    Density of gasoline: 737 kg/m3
    1 cubic meter = 264.172051 gallons, equals 2.79 MJ/gallon.

    Now 1 kWh is exactly 3.6 MJ. Electricity costs (let's exaggerate) 30 cents per kWh.

    What do you pay for gas?

    Now add to that the facts that:
    1) It is easier to clean up a handfull of power-plants than a millions cars distributed over the whole country.

    2) Electricity doesn't have to come from fossil fuel sources

    3) Even if it does, power plants still produce energy more efficiently than an automobile engine.

  5. One person suffering trade offs is not conclusive. by nick_davison · · Score: 5, Informative

    Politicians and automakers say a car that can both reduce greenhouse gases and free America from its reliance on foreign oil is years or even decades away. Ron Gremban says such a car is parked in his garage. It looks like a typical Toyota Prius hybrid, but in the trunk sits an 80-miles-per-gallon secret -- a stack of 18 brick-sized batteries.

    And as the average American wants a big SUV and certainly isn't going to accept downgrading to something the size of a Prius and losing all of their trunk space to 18 brick sized batteries, it looks like the politicians and auto makers are correct.

    In 1904 or whenever it was, two guys managed to invent a plane that, yes, technically could fly. A full hundred years later, why don't we all have our own planes or flying cars? Because, for the average person, they're totally impractical - they simply cost too much and have too many trade-offs for the benefits gained.

    A Prius stacked full of batteries with no trunk space is exactly the same: Sure, you can do it. But that doesn't mean everyone in America is going to rush out and get one.

    The theory is that it'll take years or decades to reach the point where it is practical for the masses. And that theory remains true.

  6. Re:So like... by Txiasaeia · · Score: 5, Funny
    Compare your Geo's zero-to-60mph time with a hybrid. You'll find your answer there.

    Not to nitpick, but the only way that a Geo's going to get up to 60 mph is if it's going downhill and you've got a sail the size of a Winnebago attached to the roof. And that's on a good day.

    --
    Condemnant quod non intellegunt.
  7. Even compared to other new non hybrids..... by Original+Buddha · · Score: 5, Insightful

    ...it's not worth it. You can get a non hybrid Civic for $14k that gets 32/38 milage. The hybrid Civic runs $6k more but gets 10mpg more. How many years does it take you to break even on the gas costs?

    1. Re:Even compared to other new non hybrids..... by Alex+P+Keaton+in+da · · Score: 5, Insightful

      Um- How much money do you save recycling aluminum? How much do you get paid to drive to the city facility to get rid of old paint and batteries instead of throwing them out? How much do you save by (Name any act that is helpful to the enviornment)?
      Doing the right thing isn't always about saving money....
      I usually plow snow in the winter as a second job (Find me another second job where you make $50 and hour to drive around in a truck smoking cigarettes and listening to music) but I almost never drive my plow truck in the summer. Is at a big, comfy F350 dually crew cab? Yes. Can I afford to gas it and drive it to work everyday? Yes. Do I? No. I sometimes ride my bike, sometimes carpool and sometimes drive my car. But my big, comfy (I am 6'4" so a F350 is nice for me) truck at home all winter. Why? Because I feel a responsibility for the Earth

      --
      And All I Ask is a Tall Ship And a Star to Steer Her By
  8. Re:And to think a Motorcycle will do even better. by grozzie2 · · Score: 5, Funny
    Motorcycles are a brilliant concept. When you have an accident in a car, there's a couple thousand pounds of metal making all sorts of creaking a grinding noises, acting as an energy absorbing wear plate, before the impact energy starts to dissipate on the occupants. This is not very efficient at all.

    A motorcycle on the other hand is quite different. When you lay a motorcycle on it's side, there's a hundred pounds of human flesh and blood acting as a wear plate, before you scratch the paint on the motorcycle. The human rider is directly exposed to the energy of the impact, a very efficient transfer of energy.

    As an extra side bonus, when humans act as wear plates to protect the motorcycle, they are also helping with the culling process, improving the gene pool. I always get a big grin on my face when I see a big dumb biker riding down the road, jeans and a t-shirt, no helmet. Nature will always prevail, the culling process is natural in that scenario. The only real problem these days is the sneaking up of license ages. If they keep letting it sneak up higher, pretty soon, the culling process wont be able to take effect until AFTER those folks have propogated the genes that contain utter stupidity. But I have faith in nature, it'll find another vector around this problem....

  9. Re:MPG by Rich0 · · Score: 5, Interesting

    The question I have is why nobody has come up with a diesel hybrid. You have all these arguments that hybrids are no better than old-style diesels, which is true. The diesel engine is just a whole lot more efficient.

    So, why not just make a diesel hybrid? Best of both worlds, and if you only need to tank up every 800 miles don't tell me you can't find find a gas station that sells it...

  10. Re:We care about the children too by DigiShaman · · Score: 5, Insightful

    It doesn't just piss you off, it really really pisses me off...and I live in Texas.

    I wish I could just purchase a car without all of that extra safety shit and roll the dice on whether or not I survive. In return, I get a car with a huge discount. But noooooooo, the Big Government wont give me that option. So I must pay the "safety tax"

    --
    Life is not for the lazy.
  11. Re:So like... by falzer · · Score: 5, Funny

    The Geo's 0-60mph acceleration time is measured with a desk calendar.

  12. Re:MPG by Anonymous Coward · · Score: 5, Informative

    There should be one coming to the US market this year:

    http://www.hybridcars.com/ram.html

  13. Re:So like... by dal20402 · · Score: 5, Insightful
    SUVs don't need to be justified.

    I'd appreciate it if you would justify to me why you're wearing out the roads faster, the ones I pay for with my tax dollars. Until there are higher registration fees for heavier vehicles, SUV drivers are getting subsidized by the rest of us.

    And that doesn't even touch the global warming issue.

  14. Re:So like... by Ambassador+Kosh · · Score: 5, Interesting

    Those hummers should not even be street legal. Look at where the bumper level will hit a normal car. I would rather get hit by a semi then a hummer. The semi is more likely to push you since the bumper is designed to hit as low as possible while the hummer is going to just run over you.

    I also don't know why but some of the most dangerous driving I have seen was done in the largest suvs. Things like the hummer and those suburban things. I watched someone yesterday on the freeway change lanes right into one a smaller car was already occupying. The person swerved very quickly and avoided the accident but there is no reason it should have happened. The car would not have been in their blind spot it just seemed like they did not see it. My guess is that people in those larger vehicles are only looking at vehicles that they see as a threat, ie the same size or larger and so they are a far more serious threat to other vehicles on the road.

    I know there are some legitimate reasons to have them. The mountain rescue service around here has hummers that they use for rescues but they should not be used for regular driving around.

    --
    Computer modeling for biotech drug manufacturing is HARD! :)