Best Clutch
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Retired OG
Joined: Nov 2002
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From: The OC, Cali
Originally posted by Greaser
act street setup with tougher pressure plate. do you need a clutch now or something, is it slipping?
act street setup with tougher pressure plate. do you need a clutch now or something, is it slipping?
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Joined: Nov 2002
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a good clutch will have an amount of slip during engagement. this allows for great driveabilty and clutch modulation for traction.
what i meant by slip was during full power, at torque peak (whenever that maybe in the powerband) does the engine rpm rise without the car moving any faster.
my clutch masters stage 3 started slipping during a 10psi 1/4 mile pass. with only 250hp it should not have been doing so. shift from 3rd to 4th the rpms shoulda been around 5,000 rpm. on the last couple of runs, engine was ending up at around 6,000rpm and my MPH kept going down run after run.
turns out the flywheel was not machined correctly and would not allow the correct pressure the clutch needed. This explained the weak/mushy pedal pressure. and after 3 years of use with little wear on the disc, no room for small amounts of wear since there wasnt enough pressure to allow the disc to wear and still clamp correctly.
i got a new clutch with a correctly machined flywheel and oh my god. i never thought a stock organic disc could hold like this. its all in the material, pressure plate, and how much pressure is put on the disc during operation. i've got a dual diaphram clutch which is like having the pressure of 2 plates in one. one is stacked on top of the other. pedal pressure is higher than stock, but FEELS GREAT. i can feel through the pedal just what the clutch is doing. i could NEVER do that with the pucked clutches i've ever used.
what i meant by slip was during full power, at torque peak (whenever that maybe in the powerband) does the engine rpm rise without the car moving any faster.
my clutch masters stage 3 started slipping during a 10psi 1/4 mile pass. with only 250hp it should not have been doing so. shift from 3rd to 4th the rpms shoulda been around 5,000 rpm. on the last couple of runs, engine was ending up at around 6,000rpm and my MPH kept going down run after run.
turns out the flywheel was not machined correctly and would not allow the correct pressure the clutch needed. This explained the weak/mushy pedal pressure. and after 3 years of use with little wear on the disc, no room for small amounts of wear since there wasnt enough pressure to allow the disc to wear and still clamp correctly.
i got a new clutch with a correctly machined flywheel and oh my god. i never thought a stock organic disc could hold like this. its all in the material, pressure plate, and how much pressure is put on the disc during operation. i've got a dual diaphram clutch which is like having the pressure of 2 plates in one. one is stacked on top of the other. pedal pressure is higher than stock, but FEELS GREAT. i can feel through the pedal just what the clutch is doing. i could NEVER do that with the pucked clutches i've ever used.
Last edited by Greaser; Dec 30, 2003 at 12:49 PM.
DESTROYS DONUTS !!
Joined: Nov 2002
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From: the seed has sprouted.
Last edited by MORE IMPATIENT; Dec 30, 2003 at 01:52 PM.
I'm a 564 veteran
Joined: Aug 2003
Posts: 337
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From: connecticut
i've been using an act stage II, with an extreme pressure plate for over a year now, granted i'm not boosting, but i haven't had any problems with it and it drives great. once i broke it in i could bark fourth on 17s on a cold road.
nannerpus, nannerpus
Joined: Jan 2003
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From: pungo
Originally posted by MORE IMPATIENT
http://www.advancedstageclutchtechno...altymaster.org
http://www.advancedstageclutchtechno...altymaster.org
