Lets say I have few 12a and 13b both na and turbo 2 plus a couple REW / renisis motors kicking around. what are you guys building to put in an FC? i have a cnc (Hobby level MR-1), i also have a friend with an engine machine shop next door. I am pretty good on fusion also. has anyone modeled a 3 or 4 rotor crank and sent it to be 3d printed in steel? I am down to build whatever to have something different. PP with some 787b style variable intake runners? doesnt need to be fast. 

Pic of some merch design ideas. (Not for sale)