Well sorry about the delay, i am using a Turbonetics T72 ball bearing . with 115 exhaust housing. I used some trixs using crossmembers from an rx3 to use the 3rotor engine on the 616. Yeah i Know there is alot of cars running 3rotor engines in australia and new zealand but it is cool to have one in a handfull in American soils.

 

very nice!