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Mazda Stops Production of the Last Rotary Engine Powered Car
Hugh Pickens writes "After a 45-year production run, Mazda Motor Corp announced that the latest edition of the Mazda RX-8 will end production in June 2012. The Japanese automaker ... introduced its first rotary engine car in 1967 and is the only automaker in the world that makes rotary engine vehicles, once the darling of the automotive industry. Such engines have fewer moving parts and are quieter than comparable piston engines but are more expensive to manufacture and consume more fuel. Cumulative sales of Mazda vehicles with rotary engines total about 1.995 million but Mazda sold only 2,896 RX-8 cars last year, with 1,245 of them in North America and 963 in Japan. 'Although R-X production is ending, the rotary engine will always represent the spirits of Mazda, and Mazda remains committed to its ongoing development,' says Mazda Chief Executive and President Takashi Yamanouchi recalling the victory of Mazda's rotary engine at Le Mans 20 years ago... Mazda does not have flashy green technologies in its lineup that its bigger Japanese rivals do — such as the hybrids at Toyota Motor Corp. or electric vehicles at Nissan Motor Co. The fading away of its prized rotary engine — although largely symbolic — is yet another blow."
Like a million apex seals cried out in unison, and were then ejected from the tailpipe.
I read the internet for the articles.
The Mazda rotaries have traditionally worn out prematurely (needing rebuilds after 80-100k because of oil leaks), and they get relatively poor fuel economy. The design has a slightly higher power/weight ratio, but that specific advantage doesn't outweigh the many disadvantages.
I'm watching the MYT engine, which is a swing-piston engine. Raphial doesn't want to sell out to someone who'd kill it or bury it, and hasn't found anyone to loan him enough to get his factory off the ground.
Learn the rules so you know how to break them properly.
www.teslabox.com
The displacement number in rotary engines is quite misleading. The design is so different than a piston based engine that it's not a fair comparison. You're getting more power because you're getting more power strokes per rotation. Because you're getting more power strokes, you're doing more intake strokes (more fuel). So while power/displacement ratio is better, that doesn't necessarily affect the power/fuel ratio at all.
Not only that, but the triangle is spinning inside a peanut!
Who *wouldn't* want a triangle-peanut powered car?
technology coming down the pike. the new diesels look especially intriguing. And it appears the rotary isn't dead, it's just restin'.
Never let a lack of data get in the way of a good rant.
Reality check, the upcoming CX5 will be far and away the most fuel efficient AWD vehicle available in North America when it's introduced later this year. In 2013 (2014 model year) if they bring the Skyactiv diesel to the US like they've announced then you will be able to get an ~42mpg AWD crossover. They are doing this without the very expensive and environmentally dubious hybrid or electric drivetrains, just good old fashioned engineering.
There are 4 boxes to use in the defense of liberty: soap, ballot, jury, ammo. Use in that order. Starting now.
The advantages of the rotary engine are power (relative to weight) and simplicity. Even though the rotary engine has fewer moving parts than a piston engine, service life is LESS. In theory, IF there were many manufacturers competing and making interchangeable parts, rotary engines might become cheap enough to be disposable. But with Mazda as the only game in town, forget it.
As engines evolved, people discovered it was easier to reduce the weight of a piston engine than to build a long-life rotary engine. Of all the components that can fail in a car, the pistons, engine blocks, rings, rods, valves, fuel injectors, and camshafts are normally good for the life of the vehicle. With the possible exception of timing belts, the simplicity of the rotary engine does not translate to lower maintenance cost because the admittedly complicated piston engines are generally quite reliable.
A wanker is typically reciprocating instead of rotary.
When I go to the track with mine and open the hood all the V8 drivers are ready to race. They see the tiny engine and just know they are going to spank it. When reality sets in and the big V8 gets spanked properly by my 1.1 liter rotary engine (in a Jap car) they start screaming about how rotaries suck and power to weight and blah blah but they lose. What they don't know is that I am squeezing 761HP out of a 1.1 liter in 1700 lb car. I am quick to tell them that it is a 1.1 liter engine though. And yes they are loud as hell not quieter. And I have never had an engine blown while racing. Build it properly and don't lean it out and you wont blow it that easily. I have seen rods go flying out of piston engines and catastrophic blower disasters from V8s though and yes waiting for those to clean up can be a drag.
Mazda is just not producing anymore renesis rotary engines. Does not mean they are not producing a new rotary engine. "Thank you so much for all your supportive messages concerning the RX-8 and the rotary engine! We are also excited. Mazda is aiming to achieve a breakthrough with the ‘Skyactiv’ technology, and we are zealously working on new models to house the next generation rotary engine. Thank you for your continued support!" http://carscoop.blogspot.com/2011/10/mazda-pr-tweets-that-company-is-working.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Carscoop+(CARSCOOP) This article is so wrong on so many levels that its funny.