Semi pp N/A build: question thread

C. Ludwig · 12-02-2011, 11:27 AM

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.

Pettersen · 12-02-2011, 04:07 PM

Going to have the rotors lightened, clearencing and balancing the whole rotating assembly.
The oil system will be T2 oil pump, FD or Race pressure regulator, dual oil filters and maby an aluminium oil pan from pineapple + new lines.

This thing just looks so much better than the stock oil pan.
http://www.pineappleracing.com/fcaluminumoilpan.aspx

Pettersen · 12-09-2011, 03:48 PM

What does the weight redux on rotors gain me?

I will have the entire rotating assembly balanced, and get the rotors clearenced but unshure if i realy need to get the rotors lightened + it's realy expensive to get the rotors lightened so i can't realy afford to do it unless i realy is a "big gain" (reliability/power/respons)

12-02-2011, 11:27 AM	#1
C. Ludwig Rotary Masochist Join Date: May 2008 Location: Floyds Knobs, IN Posts: 494 Rep Power: 18	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. __________________ _______________________________________________ *One stop Haltech, AEM, Syvecs shopping. Installation and tuning.* http://www.lms-efi.com *Free support. Drop us an email.* chris@lms-efi.com 502-515-7482 Facebook @LMS-EFI

12-02-2011, 04:07 PM	#2
Pettersen Rotary Fanatic Join Date: Mar 2010 Location: Norway Posts: 163 Rep Power: 16	Going to have the rotors lightened, clearencing and balancing the whole rotating assembly. The oil system will be T2 oil pump, FD or Race pressure regulator, dual oil filters and maby an aluminium oil pan from pineapple + new lines. This thing just looks so much better than the stock oil pan. http://www.pineappleracing.com/fcaluminumoilpan.aspx Last edited by Pettersen; 12-02-2011 at 04:32 PM.

12-09-2011, 03:48 PM	#3
Pettersen Rotary Fanatic Join Date: Mar 2010 Location: Norway Posts: 163 Rep Power: 16	What does the weight redux on rotors gain me? I will have the entire rotating assembly balanced, and get the rotors clearenced but unshure if i realy need to get the rotors lightened + it's realy expensive to get the rotors lightened so i can't realy afford to do it unless i realy is a "big gain" (reliability/power/respons)