C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

SPEC (Star) clutch installed with NO problems

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Old Oct 2, 2002 | 01:46 PM
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Default SPEC (Star) clutch installed with NO problems

I got the stage II with aluminum flywheel package. The shop installed it in 2 hours! :eek: I thought I would post a success since some of the negative experiences with SPEC seem to be with fitment and installing it.

Once I get it broke in I will post the results. I have a little transmission rattle at idle and sometimes accelerating below 2k. No big deal.
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Old Oct 2, 2002 | 04:49 PM
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Default Re: SPEC (Star) clutch installed with NO problems (ericcer)

I have a SPEC Stage III clutch with the aluminum flywheel and it has been perfect from day 1. It is a little noisier, but my cam and exhaust make it virtually unnoticable. The Stage III grabs very well, but can be touchy and takes some getting used to. I have over 12,000 miles on it now and it's still as strong as ever!
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Old Oct 2, 2002 | 05:19 PM
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Default Re: SPEC (Star) clutch installed with NO problems (ericcer)

What were you charged for installation?
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Old Oct 2, 2002 | 05:44 PM
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Default Re: SPEC (NE14SIN)

They took the tranny out, replaced the clutch and flywheel and reinstalled the transmission in 2 hours?! Holy crap they are good. Do you notice anything else besides a little more noise? Does the engine rev faster or shift any better?

Jason
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Old Oct 2, 2002 | 05:47 PM
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Default Re: SPEC (NE14SIN)

What were you charged for installation?
$350 for the job. They are a very small shop with 2 bays. They specialize in Corvettes.

I have not had any time yet to do much of a test drive. Just drove it for a few miles when I got it after lunch today.
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Old Oct 2, 2002 | 10:37 PM
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Default Re: SPEC (Star) clutch installed with NO problems (ericcer)

I got the stage II with aluminum flywheel package. The shop installed it in 2 hours! :eek: I thought I would post a success since some of the negative experiences with SPEC seem to be with fitment and installing it.

Once I get it broke in I will post the results. I have a little transmission rattle at idle and sometimes accelerating below 2k. No big deal.
:cool: I had the same setup installed when the 383 was done. So far so good.


[Modified by R94 LT 1, 8:37 PM 10/2/2002]
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Old Oct 2, 2002 | 11:20 PM
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Default Re: SPEC (Star) clutch installed with NO problems (ericcer)

My SPEC II has also worked without a flaw. MORE perf. in Charlotte did the clutch / flywheel and 3:73's all at once. Works well..hooks hard and is Definately noisy, especially with a single mass fly..I would definately do it again.. I have about 1,000 miles on mine
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Old Oct 3, 2002 | 12:14 PM
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Default Re: SPEC (Daves90)

I'm happy with my SPEC too. i had a stage 2 installed over a year ago and as of yet I have not had any problems with mine.
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Old Oct 3, 2002 | 05:24 PM
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Default Re: SPEC (Thumper)

I heard that the SPEC II and aluminum flywheel tend to chatter more..

I assume these all of you are using are Kevlar discs right?
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Old Oct 3, 2002 | 05:29 PM
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Default Re: SPEC (-=Jeff=-)

I heard that the SPEC II and aluminum flywheel tend to chatter more..

I assume these all of you are using are Kevlar discs right?
Yes, my Spec stage 2 and aluminum flywheel is noisy. I don't mind.

Stage 2 = Kevlar disc
Stage 3 = Carbon Fiber disc
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Old Oct 3, 2002 | 05:33 PM
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Default Re: SPEC (R94 LT 1)

I heard that the SPEC II and aluminum flywheel tend to chatter more..

I assume these all of you are using are Kevlar discs right?


Yes, my Spec stage 2 and aluminum flywheel is noisy. I don't mind.

Stage 2 = Kevlar disc
Stage 3 = Carbon Fiber disc
I meant more chatter when engaging the clutch.. not necessarily the noise.
Is it real grabby feeling? Also how streetable is it
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Old Oct 3, 2002 | 05:43 PM
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Default Re: SPEC (-=Jeff=-)

I heard that the SPEC II and aluminum flywheel tend to chatter more..

I assume these all of you are using are Kevlar discs right?


Yes, my Spec stage 2 and aluminum flywheel is noisy. I don't mind.

Stage 2 = Kevlar disc
Stage 3 = Carbon Fiber disc

I meant more chatter when engaging the clutch.. not necessarily the noise.
Is it real grabby feeling? Also how streetable is it
I can't say that it's noisy when engaging it. I does make some noise while accelerating. It's gone after about 2000rpms. As far as grabby, I don't really think so. I happen to like it much better than the Centerforce I had before, and I fell it's actually easier than the stock clutch. The only thing I was worried about was keeping the revs up because of the flywheel, but with the 383's torque, that hasn't been an issue either.
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Old Oct 3, 2002 | 05:56 PM
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Default Re: SPEC (R94 LT 1)

My Stage III (with aluminum flywheel) quiets right done when the clutch is engaged, no rattleing at all. The stage III is a little grabby and takes some getting used to because of the "puck" type friction plate used. But like I said mine is a daily driver and I have had no issues with it...just took about 75 miles of driving to get to know it that's all.
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Old Oct 3, 2002 | 08:40 PM
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Default Re: SPEC (Zix)

Mine is noisy but grabs well and is easier to use than stock. Most of the chatter stops around 2000 and lots of people say I have a bad bearing until I put in the clutch and it gets real quiet.
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Old Oct 3, 2002 | 09:23 PM
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Default Re: SPEC (Star) clutch installed with NO problems (ericcer)

Guys,

Where can I get more info about these clutch's? I am interested in doing a alum flywheel and Very light clutch in L-98

Thanks
Robin
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Old Oct 3, 2002 | 09:44 PM
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Default Re: SPEC (zrracer)

Guys,

Where can I get more info about these clutch's? I am interested in doing a alum flywheel and Very light clutch in L-98

Thanks
Robin

Contact Chris at Speed Demon Motorsports. He should be able to give you all the info you need.
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Old Oct 4, 2002 | 08:02 AM
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Default Re: SPEC (zrracer)

Guys,

Where can I get more info about these clutch's? I am interested in doing a alum flywheel and Very light clutch in L-98

Thanks
Robin
Star Performance Engineered Clutches (800) 828-4379
http://www.specpwr.com/
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