Does anyone have a spec clutch kit installed
Thread Starter
Pro
Joined: Sep 2007
Posts: 626
Likes: 0
From: Hollywood California
Does anyone have a spec clutch kit installed
Drifting
Joined: Dec 2005
Posts: 1,777
Likes: 1
From: Port Neches Texas
St. Jude Donor '07-'08-'09
I had a Spec 3+ that the devilray ate up in less than 3K miles without even getting on it hard. I wouldn't buy them again. I have a twin disk RAM now that seems to be much better.
Instructor
Joined: Jul 2004
Posts: 239
Likes: 0
From: Mount Dora Fl
I got 40,000+ miles out of a Spec 2. I just took a Spec 5 out after it started to slip at 6,000 miles. Lots of 5,000 rpm dumps. Replaced it with a Spec 4, which I hope is more DD friendly
FWIW unless your car is just for drag racing you don't want the Spec 5, it is strictly an on-off engagement. The disc being sintered metal will be eaten up if you slip it.
FWIW unless your car is just for drag racing you don't want the Spec 5, it is strictly an on-off engagement. The disc being sintered metal will be eaten up if you slip it.
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Racer
Joined: Jan 2008
Posts: 285
Likes: 0
From: Boca raton Florida
I haven't had any expierience with them on a vette but I have in other cars and I can tell you that all 3 of them that I have seen were garbage. On 1 they gave us a kit with a bad throwout bearing that couldn't push in the pressure plate. The second one's flywheel had the wrong sized holes to match up to the engine. And the third went in fine and worked completely normal except for the fact that you didn't have to push the clutch in to shift you could just move the shifter into the next gear, it wouldn't slip, drag, or grind anything it behaved completely normal except for that. My transmission teacher who has been doing this for 30 years had no idea why it was doing it. Stay away from them.
Melting Slicks
Joined: May 2005
Posts: 2,231
Likes: 0
From: Brownsville Tx
the third went in fine and worked completely normal except for the fact that you didn't have to push the clutch in to shift you could just move the shifter into the next gear, it wouldn't slip, drag, or grind anything it behaved completely normal except for that....
Drifting
Joined: Feb 2005
Posts: 1,298
Likes: 115
From: City of Pompton Fl
I haven't had any expierience with them on a vette but I have in other cars and I can tell you that all 3 of them that I have seen were garbage. On 1 they gave us a kit with a bad throwout bearing that couldn't push in the pressure plate. The second one's flywheel had the wrong sized holes to match up to the engine. And the third went in fine and worked completely normal except for the fact that you didn't have to push the clutch in to shift you could just move the shifter into the next gear, it wouldn't slip, drag, or grind anything it behaved completely normal except for that. My transmission teacher who has been doing this for 30 years had no idea why it was doing it. Stay away from them.
If you were able to shift the car without the clutch, that's a problem with the way the clutch is adjusted, if it's cable operated, or with the hydraulic system, if so equipped.
The TOB doesn't have much, if anything, to do with the actual effort required to move teh pressure plate. As I said before, it's either the cable doing it or the hydraulic system.
Or there's a problem with the tranny itself or even possibly the rear. I once had a Powertrax locker come apart in the pumpkin. The car would run and drive 99% of the time, but once in a while I could put it in gear and let the clutch out but the car wouldn't move. The drive shaft would spin, but the diff. was junk.
If the TOB seizes, squeaks, or comes apart, THEN you've got a source for a problem.
In fact, I'd go so far as to say 99% of premature clutch failures I've EVER seen are related to improper installation or adjustment. (A lot of premature tranny failures, as well.)
I've had two SPEC stage III clutches and have had zero issues with either.
Pedal feel is much harder than stock, and it's a lightswitch operation.
It feels like it's either off or on.
Last edited by Big Top Gt; May 28, 2008 at 02:01 PM.
