Clutch slipping, need help
Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,702
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Clutch slipping, need help
What can cause a clutch to slip? The reason I'm asking is that I put in a new flywheel (resurfaced once) and a used Centerforce DF with 15k miles and it slips if I try to floor it. What could it be? I put the Centerforce in because the stock replacement was slipping, but this one slips just as much.
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-Black 89 GTA, t-tops, 5 speed
-355 cubic inches
-Edelbrock Performer Centerbolt heads with 10.4:1 compression (#6085)
-LT4 Hot Cam with 1.6 rr's
-SLP 1 3/4" Headers
-Accel Super Ram, stock throttle body
-dual cats with Flowmaster Y-pipe and single outlet Flowmaster cat-back
-Scat cast crank
-roller timing chain
-SLP CAI
-EST poly A-arm bushings, sway bar end links, transmission mount
-Alston sub frame connectors
https://www.thirdgen.org/newdesign/movies/index.shtml
------------------
-Black 89 GTA, t-tops, 5 speed
-355 cubic inches
-Edelbrock Performer Centerbolt heads with 10.4:1 compression (#6085)
-LT4 Hot Cam with 1.6 rr's
-SLP 1 3/4" Headers
-Accel Super Ram, stock throttle body
-dual cats with Flowmaster Y-pipe and single outlet Flowmaster cat-back
-Scat cast crank
-roller timing chain
-SLP CAI
-EST poly A-arm bushings, sway bar end links, transmission mount
-Alston sub frame connectors
https://www.thirdgen.org/newdesign/movies/index.shtml
Senior Member
Joined: Jul 2001
Posts: 649
Likes: 0
From: San Rafael, CA
Car: 1988 Trans Am GTA
Engine: 5.7L TPI (L98)
Transmission: 700RJunk
Obviously a worn out clutch and or pressure plate can cause slip...since it has 15K it probably has plenty of life left. I'm no expert on trannies but its most likey something in the clutch assembly (t.o bearing, fork, spring, etc) that isn't adjusted right or that doesn't have the correct tolerances for the application. For instance clutch springs that don't have enough tension won't press the pressure plate and the clutch together hard enough, causing slip under heavy load.
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'87 Red Formula Firebird
-mostly stock LG4 w/cowl induction setup borrowed from '83 TA and T5 tranny
'85 Corvette
-stock L98/4+3 manual tranny
-z51 package
[This message has been edited by RedFirebird (edited December 14, 2001).]
------------------
'87 Red Formula Firebird
-mostly stock LG4 w/cowl induction setup borrowed from '83 TA and T5 tranny
'85 Corvette
-stock L98/4+3 manual tranny
-z51 package
[This message has been edited by RedFirebird (edited December 14, 2001).]
Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,702
Likes: 0
Hmm yea, that's what I was thinking. There must be something adjusted wrong or not matched properly.
------------------
-Black 89 GTA, t-tops, 5 speed
-355 cubic inches
-Edelbrock Performer Centerbolt heads with 10.4:1 compression (#6085)
-LT4 Hot Cam with 1.6 rr's
-SLP 1 3/4" Headers
-Accel Super Ram, stock throttle body
-dual cats with Flowmaster Y-pipe and single outlet Flowmaster cat-back
-Scat cast crank
-roller timing chain
-SLP CAI
-EST poly A-arm bushings, sway bar end links, transmission mount
-Alston sub frame connectors
https://www.thirdgen.org/newdesign/movies/index.shtml
------------------
-Black 89 GTA, t-tops, 5 speed
-355 cubic inches
-Edelbrock Performer Centerbolt heads with 10.4:1 compression (#6085)
-LT4 Hot Cam with 1.6 rr's
-SLP 1 3/4" Headers
-Accel Super Ram, stock throttle body
-dual cats with Flowmaster Y-pipe and single outlet Flowmaster cat-back
-Scat cast crank
-roller timing chain
-SLP CAI
-EST poly A-arm bushings, sway bar end links, transmission mount
-Alston sub frame connectors
https://www.thirdgen.org/newdesign/movies/index.shtml
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