The rotary is actually a single cycle engine. I had a 3 rotor motor from a Cosmo in my RX2's body with 2 turbos. VERY fast! (I got clocked on the Trans Canada at over 175 mph which was NOT it's top speed! That led to 6 months w/o a license and I sold the car) Running NO2, it would do the 1/4 just under 8 seconds. The RX8 turbo comes pretty close, but I no longer have the driving skillz or lack of fear I once had. I did build my own rudimentary EFI system that got it to close to 17 mpg in town. Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 From: "Eddie Stakes" <eddiestakes@xxxxxxxxxxxxxxxxxxxx> To: <BaadAssGremlins@xxxxxxxxxxxxxxx> Cc: amc-list@xxxxxxxxxxxx Subject: Re: [AMC-list] Pacer motor mounts oddities Message-ID: <9EB49175D921409DAD01035908FE9D71@piageedc1iqa5q> Content-Type: text/plain; charset="iso-8859-1" Aren't Mazdas still using rotary engines to this day? Speaking ot Olds Toronado there was a great photo of Croft Trailers framed on the wall down on Navigation years ago. There was a Toronado.....NO BACK WHEELS, hooked up to trailer and it toured the country this way the trailer held up rest of car I guess, too much physics for me. I used to rent trailers there for swap meets and was always facinated by that photo. Eddie Stakes 713.464.8825 eddiestakes@xxxxxxxxxxxxxxxxxxxx www.planethoustonamx.com ----- Original Message ----- From: LarryS Couple o' things. The wankel rotary isn't a 2 cycle OR a 4 cycle, they are Wankel cycle. (In fairness, I tend to think of it as 2 stroke, but that's not accurate ;-) Mazda used the rotary in a full lineup of cars including the RX-7 and their various boxy japanese sedans. After the various apex seal problems, all the sedans dropped the rotary for the mazda 4 cylinder with the RX-7 being the lone rotary in production at all for a while. 2 stack rotaries are commonplace. Even singlestack rotaries are used, but not in cars -- you're talking all of 75 hp or so. 3 stack are common, racing and road cars, but not domestically. They are usually ordered in from Australia or somewhere. Can't make EPA, you know ;-) 4 stack are, to my knowledge, not used anywhere except experimentally on stationary applications like their "spark assisted diesel" project for electrical generation. Yup... a wankel running diesel fuel... except "spark assisted" -- talk about marketing spin. The 4 stack has a lot of the same kind of crank probs a straight 8 can have. Too much load over too long a shaft, basically. Among the many reasons the rotary didn't take off were those crummy apex seals -- ironically, now that there's so few of them, they've come out with good seals and the problem is gone. Also, they never did get good mileage. Ever. That's why I think of them as a 2 stroke engine -- they chugalug the fuel. The new Mazda Renesis (?) is a production rotary.... 3 or 4 years now? And no, you don't see many of them. Just in case anyone was gonna lose any sleep over a stupid little japanese engine. Oh... and if you run one without a muffler, it makes absolutely the nastiest, loudest, and most-annoying sound I have EVER heard from an engine. Talk about something that would invoke road-rage... that'd be it. L. _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com