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View Full Version : Interesting SPEC clutch review...


coupe
11-09-2005, 08:19 AM
A guy posted this on turbomustangs.com about his experiences with SPEC clutch. I thought it was an interesting read for more than just clutch choice.

I just toasted a SPEC Stage III after two and a half seasons of pure hell I put it through. The first combination was a A trim 302 that ran 7.0 with 1.42 60', Then I pulled that motor and installed a 363ci R302 based motor and ran 6.86 on motor with a 1.42 60'. Then I added a dual stage nitrous kit and sprayed a 200 shot on it and ran 6.24 with a 1.310 60'. This combination was making 600rwhp and 740rwtq. Then I removed the nitrous and added a YS Trim vortech and made 708rwhp and ran this car on MT drag radials. Slipping the clutch off the line with the newly installed 3.27 gears and 700rwhp finally killed it. Slipping badly, the car still went 11.07 at 130. I cannot say enough good about the SPEC stage III that I had (6 puck). It had extremely light pedal pressure, it chattered for the first 50-100 miles,but then never again. It is by far the best clutch I have ever put in my car over the last 10 years. With my new T76 combo, I upgraded to the Stage III Plus. Once it is in the car and broken in and dyno'd, I'll post up how I like it.

Shankin
11-09-2005, 10:17 AM
that is a buddy of mines car! I ran the 7 oh passand the 11.07 pass. I like the spec clutches myself.

96GTS
11-09-2005, 11:38 AM
that is a buddy of mines car! I ran the 7 oh passand the 11.07 pass. I like the spec clutches myself.
me too. I dont have near that power, but I still cut 1.53 60s, launching at 7200 rpm. It was daily driven as well for over a year w/ the spec. Still grabs super hard...

CrazyInBlack
11-09-2005, 01:00 PM
they got great reviews for a long time and then it seemed all you heard was bad things

but all my friends with them liked them and had good luck with their customer support

TheJeanyus
11-09-2005, 02:04 PM
:nice: I'm thinking about a stage III when it comes time to replace the OEM clutch in the Cobra. :yup:

coupe
11-09-2005, 02:20 PM
I tell you. I've seen some of the "bad" ones that they send back to us. There's about 90% problem with the end-user's flywheel being uneven...caused slip, heat, more wear, etc. The other 10% range from mis-adjusted forks/hydraulics to the wrong clutch installed (like turbo eclipse clutch in a non-turbo car or vice versa).

Shankin
11-09-2005, 03:05 PM
I am a dealer for spec so i must like the product!

coupe
11-09-2005, 03:39 PM
:nice:

94five0
11-10-2005, 01:45 AM
joe, the Stg III is pretty burley for a clutch, its massive overkill for my car..

but its easier to shift than my svo.. :hmm:..weird..

Shankin
11-10-2005, 05:53 AM
I am currently installing one in my 418 powered coupe. Lets see what it will hold!lol

TheJeanyus
11-10-2005, 10:40 AM
joe, the Stg III is pretty burley for a clutch, its massive overkill for my car..

but its easier to shift than my svo.. :hmm:..weird..
Another big factor in pedal effort is the quadrant. :yup:

It probably is overkill for a mild 5.0, but hopefully in the next couple months my car will be making 450+ ft-lbs. :evil: :metal:

Italian LX
11-10-2005, 10:47 AM
. . . but hopefully in the next couple months my car will be making 450+ ft-lbs. :evil: :metal:
Hopefully, in a few months, my car will be making 700+ ft-lbs of torque. :evil:

ChipR4cam
11-10-2005, 11:55 AM
Why does everyone keep saying stuff about quadrants? I could hardly tell a difference when I changed mine, and pretty much everyone has an aftermarket one.

TheJeanyus
11-10-2005, 01:20 PM
Hopefully, in a few months, my car will be making 700+ ft-lbs of torque. :evil:
...Shut up! :P


:jester:

coupe
11-10-2005, 03:19 PM
Why does everyone keep saying stuff about quadrants? I could hardly tell a difference when I changed mine, and pretty much everyone has an aftermarket one.

The Quadrant is nothing more than a lever pivoting opposite your foot on the pedal. The different size/throw in the quadrant yields different effort required; also the fork length, pivot height, and clutch diaphram strength determine clutch "pedal feel."

1Quik85GT
11-16-2005, 11:08 PM
More good news about the SPEC clutch!!!!.... Well the stage 3 disk looks awesome, and I will test it out after I get enough miles put on it... I cant wait until I cut some 1.30 60fts... Thanx MATT