Alex06

Im running a Competition Clutch twin disc with the hydraulic TOB conversion.Its been holding 520+ whp with no problems and its daily driven.

Levar

iTrader: (85)

So does it really matter which Spec clutch I choose? I looked through the MAPerformance wesbite and I saw the 7.25 version. Is this sufficient?

Ted B

iTrader: (6)

You'd want the SuperTwin, not the mini.

Sharkbite2000

iTrader: (21)

Tilton Rally has been holding up great on a 600awhp daily driver.

Ted B

iTrader: (6)

I might also mention that the ST has organic friction material and is the most factory-like where smooth engagement is concerned. I have the P-Trim, which has Kevlar facings, and is a little more aggressive, but yet still plenty refined.

Ludikraut

iTrader: (17)

Would you care to elaborate on this? I have an Exedy Twin HD, which is exceedingly difficult to drive - point-in-case NOBODY has yet managed to drive my car w/out stalling it. I've learned to manage it with a lot of practice. So is your statement in regards to the QM related to it being lighter and therefore more difficult to launch?

l8r)

Ludikraut

iTrader: (17)

Also, what is the estimated rebuild cost on the P-Trim?

l8r)

Ted B

iTrader: (6)

Lighter and smaller make lightweight, small diameter clutches difficult to launch cleanly in daily driving, which causes the stalling.

As for the exact rebuild cost of the SPEC, I only recall that the general figure is reasonable.

SPECJUNK

iTrader: (1)

i was quoted around 600 for rebuilds...unless they are totally fubar


the price is about the same as any non carbon rebuild

E85evo8

iTrader: (21)

I have the SS trim Spec twin disc and having only put 200 miles on it and need at least another 300 for a proper break-in, can say that this twin disc is absolutely awesome to drive with pedal feel AND effort being just like stock!! The SS-trim is there "entry" level supertwin with both discs being one side full faced Carbon-Kevlar and the other a Carbon Metallic 6 puck. One disc is spring hub and the other is solid hub. NO rattling or any other noises that some people complain about with a twin disc...hope this helps

8UpUrV8

iTrader: (9)

A question about spec, their entry torque capacity is 900, does anyone actually make 700+wtq?? That's crazy and I don't see why the higher trim's would be needed.

Is there any downside to an over rated clutch like the P-trim?

E85evo8

iTrader: (21)

I'm a little suspect as to how much tq. they actually will hold, but I won't be making anywhere near 900lb ft. of tq....more like 550 lb/ft once I go 35psi on full tilt with E85 on my FP HTA35r

SPECJUNK

iTrader: (1)

The clutch should handle what ever you throw at it.....they have a lot of surface area and a good diaphragm. I have a 6262 on my car and it had absolutely no signs of slipping.....even when I was making 33psi

delongedoug

iTrader: (20)

I've had my Exedy Twin for a week and am still breaking it in but can chime in confirming everything you've already read. Yes, it sounds like a coffee grinder when disengaged. It's also pretty smooth engagement. I'm coming from an ACT that blew a spring out of the clutch disk at Lime Rock, taking a chunk of metal housing with it. So far I'm quite pleased with the twin and hope to start autoXing it within the next week or two.

Taimur

iTrader: (5)

Any more updates on the Spec Super Twin (SS or PT trims)?