does anyone know how strong the oem clutch setup is? I'm swapping in an REW and I am using an RX8 5 speed. I'm looking to be pushing 400-450 at the wheel. I will be using an ACT Prolite flywheel. should i go ahead and replace the clutch?

 

I spun through a spec stage 3 sprung 6 puck the first time I put any shock through the drivetrain... a Rew swap pushing any real power should spin the OEM clutch like the disc is made of butter.

 

After about 400 you really should think about a twin disc.... you can use any that fit RX8's or FC's basically.... the best part about a twin is that the flywheel is part of the package and it lessens the sticker shock a bit on the unit as you don't need a flywheel too

 

I bought the Stage 2 Exedy, and now it's time to replace it after 11,000 miles. I dont know what to think cause it to wear so fast but I will upgrade to a dual friction.
Any suggestions as to what happened? car is stock o5 with a new engine. I did have 6 autocross races in 18.

 

That's not normal, either it was poorly adjusted and not disengaging properly, or the driver slipped it a lot. I don't think more clutch is the solution here, or at least it's an expensive way to find out the clutch wasn't the problem. I'd stick with stock.

I'm on my stock clutch after 7 years of track days and 80,000 miles.

 

Thanks for the response. I'm thinking it had issues with disengagement

 

I agree with Loki. My car has upwards of 80 track hours on the stock clutch. No problems.

The stock clutch has more than enough force to clamp OE levels of torque. Upgrading the clutch does nothing useful, unless you add significant power (forced induction).

 

Pretty much what others have said in this thread over the years, Stock is Exedy. OEM is fine unless you plan a forced induction build. Exedy did in fact make a Stage I HD clutch kit, but plenty of people had issues with it not functioning properly. If someone has the means to go forced induction at some point in the future, obviously a clutch upgrade would be a smart idea. Personally I'd throw in a lightweight flywheel while I'm changing the clutch just because it saves time in case I were to decide to upgrade the flywheel later. I wouldn't have to take the transmission off twice, and I wouldn't have to bother with getting the flywheel machined.