This is a thing of beauty!!!

[Iceni John]

The R6 version made 350 HP at 4500 RPM.   They don't quote torque, but I'm guessing Wankels are low there.   The stated fuel consumption at 2500 to 3500 RPM is 161 grams per HP per hour.   That seems high  -  about 17 gallons per hour, under full load?

Too bad that even Mazda seems to be giving up with their Wankels.   On paper this design has everything going for it.

John

[David Anderson]

Wow Horas de trabajo 1260.  1260 hours of labor.  It took a long time to do that, and all in his kitchen, too.  Very impressive.   

[Oonrahnjay]

http://www.der-wankelmotor.de/Motoren/Rolls-Royce/rolls-royce.html   

    Yeah, the Wankel epithrochoid compression system has a maximum compression of about 7:1 so it would not appear to work as a diesel engine but the Rolls-Royce engine (pictured) and a similar Curtiss-Wright engine were "compound" engines.  An ordinary Wankel three-corner rotor first compresses the air about 6:1 acting like a supercharger; the output is then ported into the main engine epithrocoid rotor and cylinder block where it's further compressed and fuel is injected.  So you get a Wankel diesel.  But it's big, heavy complicated engine -- which negates a Wankel's advantages of being small, light, and simple.