Nice always thought they were s5 rotas . I have a mint late model s5 engine built by FEED japan as a spare for my series 1 rx7. . Im currently running a jc Cosmo block with fd rotas in my 13b turbo engine in the rx7 . Its a nice fun setup. My second mazda is a jc Cosmo with a 20b mentioned to you in a previous comment. Ive owned it 16 years. New motor never started just be turned over by hand since . I build lots of different Rotary engines here in NZ. Still yet to build a 20b though. So im keen to pull mine down to just make sure she is all good to go. It was built originally for bug power. I just want reliable engine.
Nice always thought they were s5 rotas . I have a mint late model s5 engine built by FEED japan as a spare for my series 1 rx7. . Im currently running a jc Cosmo block with fd rotas in my 13b turbo engine in the rx7 . Its a nice fun setup. My second mazda is a jc Cosmo with a 20b mentioned to you in a previous comment. Ive owned it 16 years. New motor never started just be turned over by hand since . I build lots of different Rotary engines here in NZ. Still yet to build a 20b though. So im keen to pull mine down to just make sure she is all good to go. It was built originally for bug power. I just want reliable engine.
good info