Semi pp N/A build: question thread

[C. Ludwig]

Understand completely. We'll be here.

You'll want to pay particular attention to balancing. This engine should have extended RPM potential with the port scheme you're using. So you'll want it balanced correctly. Do not rely on the weight marks. Have it done correctly by someone experienced with a rotary. Clearancing the rotors is also a good idea.

Watch main bearing clearances. Some stock FC bearings are down to around .001". I like .0025-.003" on a high RPM engine. The back half of the rear main especially. FD or RX-8 gears and bearings would be a good start since they are multi-window and have more clearance built into them.

Use an FD oil pressure regulator and front oil relief valve spring. This will give you 100+ psi of oil pressure. They're cheap, even if you buy them new, and you know exactly what you're getting versus shimming FC stuff.

For a flywheel, I'd just recommend using something from a reputable company and SFI rated. ACT's ultra-light would probably be a good choice. Same with the clutch. Something from a reputable company like ACT, Spec, etc. Id' be tempted to use a solid hub puck clutch. It makes quick shifting a little easier. They don't drive terribly on the street either.

If you want to go to the TII trans, you will need the TII clutch and flywheel.