I'm very interested to see how the light weight rotating assembly works out. I've always thought the strength of these engines was their ability to rev to high RPMs. If there was some way you could get the RPMs high enough and still feed the beast efficiently, they should make very good power. It's a thought I've been kicking around for a long time , but never had the time or money to pursue. I had a 1975 REPU with the 4 port 13B back before there were RX7s. There were times I took it to around 12K rpms momentarily, stupid I know, but I was a dumb teenager at the time. That truck took all the abuse I could shovel it's way and kept asking for more, it never did quit or give me any trouble at all. That little 80 cu in engine put the fear in quite a few V8 musclecars at the time.
