Always had a fascination w/the RX2 and Wankels in general....
After a ride in an RX2 about the SEA environs with a priest friend of my new wifes', I started reading up on the cars and engines. Road and Track or Sports Car Graphic or other such did a 50K test drive with one, and reported that with the stainless exhaust, there was no wear apparent on the motor and no corrosion with the exhaust. Mazda developed the engine with a chrome liner in the combustion surface and ceramic seals with spring tensioners, further, that dyno tests they did indicated that the only limit in RPM appeared to be lack of air....
This made me think that perhaps two engines put together, i.e. working center two rotors with outer rotors being used as air pumps for the working middle might be a cheap way to hot rod one, given good engines sourced from otherwise totaled wrecking yard machines. Long (2 X) binding bolts to hold it all together and maybe some fancy welding on the crank (methinks the rotors each bolted together at the crank, and were interchangable, but I disremember) and use the front and rear end plate/bell housing from one of them to sandwich the works.... thought a simple stopped flapper valve to control air source and route the exhaust from the 'compressors' to the intakes, maybe rotating the outer banks 180 degrees to get proximity for the cold exhausts to the working intakes -- or not, if you tried high pressure injection like the jtronic from Volvo and wanted lots of mixing and cooling on the intakes - roughing the interbank intake runs for non-laminar turbulence and charge-shaping before passing the intake ports in the working banks. --That, or just mount a blower on a stock setup and over-pressure the heck out of it....
