Clutch for turbo

[DKRM]

I have a f22a with a dsm turbo kit and soon ill be dropping in a dohc f22b with the turbo. While the motors out I figure I'd throw in a new clutch. I was looking at an exedy stage 1 and spec stage 1 and I noticed that the spec was rated for 270 ft/lbs of torque while the exedy is only 199 ft/lbs but the price point is very close to the same. I did some searching and didn't find a real answer on what would be better for my set up? and what people have experienced with these specific clutches and manufacturers?

Thanks

[DKRM]

Nobody has any input on these? I know some of you guys have used these clutches, What did you guys think of them??

[rexload]

I am using Exedy stage1 without any problems. DSM setup, roughly 300 flywheel hp possibly more.
I've never used the Spec clutch though.

[DKRM]

300 you say. thats definitely more then ill be making. How many miles have you put on that rexload?

[evil_demon_01]

I am using Exedy stage1 without any problems. DSM setup, roughly 300 flywheel hp possibly more.
I've never used the Spec clutch though.

Same here, I've got 13,000kms on mine.

[rexload]

300 you say. thats definitely more then ill be making. How many miles have you put on that rexload?

yep, 20g hybrid turbo at 9-10psi with no exhaust


i actually used my clutch on two engines

put about 5000 miles on the clutch when i had an H22,

then another 6000-7000 miles on my turbo F22,

[DKRM]

Awesome Im definitely gonna go with the exedy stage 1 then. Its even 5-6 bucks cheaper than the spec. Do you guys know if its worth it to get an aluminum flywheel also or what??

[deevergote]

Spec is a high quality brand as well. As long as your output is going to be within the range that the clutch can handle, it really doesn't matter which you choose.

[DKRM]

Ya i was a little iffy on the spec one cause its rated for 270ft/lbs but it is an organic clutch like the exedy. any idea why its rated so much higher for the same price and material from what i know?

[deevergote]

I have no firsthand experience with Spec, but I know that's what Collective Racing uses... and I would trust their judgment. I do have firsthand Exedy experience (not in my car, but in my friend's car... I helped install it, and drove with him quite often) and Exedy is fantastic.

So if that's your choice, you certainly can't go wrong.

[DKRM]

Ok thanks guys! but is it worth getting a lightweight flywheel or just resurfacing the stock one

[deevergote]

For turbo, I'd stick with the heavier stock flywheel.

[DKRM]

K will do! thanks for everyones input

[kronikally420]

For turbo, I'd stick with the heavier stock flywheel.

Just curious as to why? So the turbo doesnt jump around with spooling, and its a slower steadier spool? not experienced in the area but love to learn


i know a lightweight flywheel on all motor is lovely

[deevergote]

Exactly. It keeps the engine RPM from dropping too drastically, which would require having to rev up to spool the turbo more with each shift... that's not explained very well, but you get the drift. It's not REALLY a big deal... on a street car, it wouldn't matter all that much.