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Administrator
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Discussion Starter · #1 ·
Hey all,

I have an Exedy twin carbon clutch sitting in my house waiting for installation. I've heard on fairly good authority that it requires flywheel bolts from a Celica GTS, but would love to hear someone confirm that so that I can place my order with Curt/Elmhurst.

I do have a set of the correct flywheel bolts (used), but have heard numerous times that it's not wise to re-use flywheel bolts so I'd love to order another set in addition to the stock clutch parts I need.

Any feedback is appreciated. Thanks!
 

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Member Thingy
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this was just brought up in discussion here:

http://www.supraforums.com/forum/showthread.php?t=262066&page=2

i've emailed Exedy (as i'd like to know as well) and hope to hear back soon.
That said, I haven't heard of flywheel bolt failures from anybody on the forums, but this of course doesn't mean they are pushing the power to cause failure, or that it doesn't happen under any circumstance.
 

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Discussion Starter · #3 ·
Well, I decided to take some initiative and call them directly and I'm very glad that I did as they were SUPER friendly and very helpful. I spoke to a tech support guy named Matt and he was very enthusiastic about Supras also.

Here is what I found out:

Recommended Flywheel Bolts - Toyota part number 90910-02103 (TBD which car that is actually for from Toyota)
Torque specs for bolts holding Flywheel to Crank: 36 foot pounds (+ 90 degree turn extra)
Torque specs for clutch cover to Flywheel: 23 foot pounds

He mentioned that it needed at least three 5 second slips before it could be used for drag racing, and at least a 1000 mile break-in (he said 5000 miles is preferred). When I mentioned I wouldn't be drag racing it much, he still recommended three 5 second slips before it would be able to hold peak torque. Carbon disks obviously need heat to hold, and he re-iterated that a few times.

Hope this helps! It certainly helps me. :)

Steve T.
 

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Discussion Starter · #6 ·
Hahaha! I'll let both of you know for sure.

I just ordered the parts from Curt. They are indeed FW bolts from a 2000+ Celica GTS, and may be the same as the older MK3 Supra (we didn't go on to confirm that, but Curt had a hunch). They are definitely shorter than the OEM MKIV TT flywheel bolts, and are the same bolts required for the TRD twin disc clutch with lightweight flywheel. HTH! :)

Steve T.
 

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Member Thingy
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He mentioned that it needed at least three 5 second slips before it could be used for drag racing, and at least a 1000 mile break-in (he said 5000 miles is preferred).
well that certainly validates the 3000 miles I put on the clutch ... and the near zero wear effect my driving had on it.

Hope you enjoy the clutch steve, and I most certainly hope you "abuse" it enough to break it in :)
 

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Discussion Starter · #8 ·
That will actually be quite challenging for me...since I am not known to be "abusive" towards clutches. It will definitely be a mental shift for me to believe that I'm not actually hurting the clutch by trying to slip it a lot. ;)

Thanks again for the great deal on the clutch Chris. I'm glad it worked out for both of us.

Steve T.
 

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hardtopper
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I was the guinea pig for this clutch and I found out the hard way about the flywheel bolts. They are made of the same material as the standard turbo MKIV bolts. they are grade 8 bolts. If you have a problem with them you would have had a problem with the stock bolts. The stock bolts are WAY TOO long. They bottomed out on me. The celica flywheel bolt will be fine.

I have only made 512rwtq with mine so far and no problems.
 
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