I've rebuilt a Rotary Engine and they are light and can handle 20,000 RPM
before blowing up,, (most of you will say I'm lieing but its true) and
there are 2 types of these engines,, the 12A and the bigger 13B,, the 13B I
had was naturally aspirated and had a holley 4bbl and I ported the engine
(port the engine you say?? yep) there are no heads or or crankcase..
The engine are reliable when they run thats for damn sure,, but the BIGGEST
prob with them is the APEX seals,, or the rings if you wanna call em that,,
these engines burn oil from the day they roll off the assembly line and they
are meant to do that, (makes it hard for emmisions testing,, thats why the
design is hard to pass in the USA. But after about 50K they all start
burning oil,, and its not that they have clouds of smoke out the tailpipe
cause they actually burn it pretty clean. But it cause havoc when adding a
turbo cause it causes detonation,,
Rotarys also have no torque (Naturally Aspirated and possibly TC's) but LOADS
of high end power!
Its a cool engine to work on though!
Brad M
87 Targa Edition 13B Mazda RX7 (a while back)
