Clutch & Flywheel Advice for Boosted Applications

[Driver2g]

This weekend just installed a Exedy clutch disk & a F1 flywheel, but stayed with the TRD pressure plate I already had. The original TRD disk had 2 years of wear on it and wouldn't hold at 6psi. But with this new disk it seams like the grip point is the same (the point were the clutch starts to engage) Is this normal? I only have about 75 miles on the clutch at this point, so i haven't pushed it to see if it will hold at full boost yet.

[Gibson99]

seems like when i replaced my clutchmasters last month, the engagement point is closer to the floor than it was before, and i repalced it with the same exact disk, but i also replaced the pressure plate.

i wouldn't push a brand new clutch into boost at all for at least the first 200-300 miles. my CM one said to baby it for the first 500 miles of city driving, so i did the vacuum hose trick to hold the s/c's bypass open all the time, to keep myself out of boost. man, i forgot how much extra torque it provides even without coming out of vacuum!

[SpeedySolara]

i purchased a clutch masters stage 2 full kevlar clutch and a fidanza flywheel. I haven't insalled it yet but I'll update you guys on this setup although others have given their feedback since they have the same setup. Thank you all for your input.

[RON]

i purchased a clutch masters stage 2 full kevlar clutch and a fidanza flywheel. I haven't insalled it yet but I'll update you guys on this setup although others have given their feedback since they have the same setup. Thank you all for your input.

I've had the CM stage 2 (full face disc and PP) for over 60K miles now with no problems. Great set up.

[RON]

This weekend just installed a Exedy clutch disk & a F1 flywheel, but stayed with the TRD pressure plate I already had. The original TRD disk had 2 years of wear on it and wouldn't hold at 6psi. But with this new disk it seams like the grip point is the same (the point were the clutch starts to engage) Is this normal? I only have about 75 miles on the clutch at this point, so i haven't pushed it to see if it will hold at full boost yet.

As long as you're *in there*, it's always a good idea to replace the PP as well. They do wear and can cause slipage when worn out. A heavy duty PP will even keep a semi- worn disc from slipping. If you use a *so so* PP with a new disc, it can cause premature wear of the disc.

[akora12]

I'll vouch for CM's customer service. The first disc I bought was warped, and not only did they replace it, but paid for overnight shipping on the new disc. I'm definitley throwing in another CM disc when I do my motor swap.

[nmatthis]

I'll vouch for CM's customer service. The first disc I bought was warped, and not only did they replace it, but paid for overnight shipping on the new disc. I'm definitley throwing in another CM disc when I do my motor swap.

I started the other thread on Solara clutch recommendations that you posted on. I didn't mention Clutchmasters but would you recommend a CM clutch over ACT?

[akora12]

I've never had ACT, so I can't really comment on it. However, I know a few buddies who have ran it with great results. I'll probably stick to CM just b/c of my experiences with it, but you really can't go wrong either way.

[SpeedySolara]

I'm checking in to give my feedback on the ClutchMasters Stage 2 Clutch paired w/ the Fidanza flywheel. It feels relatively like its stock in reference to stiffness. It engages a lot sooner/closer to the floor and is a bit more aggressive. It does require more gas at engagement or else it will stall which could be annoying in traffic. All in all its a great setup and shouldn't take more than a day to get the hang of it.

[Keo]

thicker clutch disc will engage earlier. I;m surprise you didn't asked me this.

[Driver2g]

This weekend just installed a Exedy clutch disk & a F1 flywheel, but stayed with the TRD pressure plate I already had. The original TRD disk had 2 years of wear on it and wouldn't hold at 6psi. But with this new disk it seams like the grip point is the same (the point were the clutch starts to engage) Is this normal? I only have about 75 miles on the clutch at this point, so i haven't pushed it to see if it will hold at full boost yet.

As long as you're *in there*, it's always a good idea to replace the PP as well. They do wear and can cause slipage when worn out. A heavy duty PP will even keep a semi- worn disc from slipping. If you use a *so so* PP with a new disc, it can cause premature wear of the disc.

So I have now learned my lesson. New clutch disk with 2 year old pressure plate not a good idea. Its only been about 4 month and my new disk is already starting to slip at only 6.5psi. Just glad it happened now before I stepped it up to 9psi and hit the track.