Centerforce Clutch Issues
Thread Starter
Teching In
Joined: Jul 2009
Posts: 14
Likes: 0
the "out of round" TO bearing....is normal. weird I know but they are all that way. SPEC now offers the "vette" aka LT4 TO bearing (for around $80 IIRC, ouch) which supposedly is stronger than the normal ones. I have one and use it....although people also have reported tearing back the lip on that type as well. Mine came with my SPEC clutch years ago so I have re-used it on a few clutches since. It also has a offset "wobble" to it when you spin it...don't know why they are that way but they are.
your PP is clearly FU and a manufacturer defect. obviously, as painfull as it is, removing clutch to inspect clearly shows wtf the problem was. I would demand a refund from whoever you bought it from and get another brand of clutch. All clutch companies use the same LT1 PP...but CF adds the "sliding weight" thing so they obviously disassemble the PP to do so...and FU putting yours back togeather.
if all you want is a "dual friction" single disc clutch what many have done is buy a $200ish clutch kit from chain auto part store then buy a McLeod DF disc from someplace like Summit for $175 and toss/sell the unused organic disc that came with the clutch kit. Every clutch company uses the same LT1 PP. CF has used the "sliding weight" thing as a system that supposedly increases clamp load as RPM increases. never been on-board with that system. Other companies claim they increase their clamp force by "modifying" their PP's for greater clamp force. SPEC is elusive on the specifics as to how they do it but claim they do. McLeod says they do nothing to the LT1 PP. ClutchNet, I visited their shop to see, disassembles the PP and heats the diaphram and changes the angle of the fingers to create greater clamp force. pedal effort is greater but I don't know if it "translates" to greater clamp force in reality although Clutchnet says it does. I suspect if it does and other clutch companies claim "greater clamp force than stock", I suspect they do the same thing.....but finding any company to publish specifics in "how" is something I have never found.
hopefully your next clutch will be plug & play. I gave up on single disc clutches after killing a variety of brands when I went 383. I now have a McLeod Street Twin. Pricy but man it holds and drives like a stock clutch
why do you pull your motor to remove clutch??
your PP is clearly FU and a manufacturer defect. obviously, as painfull as it is, removing clutch to inspect clearly shows wtf the problem was. I would demand a refund from whoever you bought it from and get another brand of clutch. All clutch companies use the same LT1 PP...but CF adds the "sliding weight" thing so they obviously disassemble the PP to do so...and FU putting yours back togeather.
if all you want is a "dual friction" single disc clutch what many have done is buy a $200ish clutch kit from chain auto part store then buy a McLeod DF disc from someplace like Summit for $175 and toss/sell the unused organic disc that came with the clutch kit. Every clutch company uses the same LT1 PP. CF has used the "sliding weight" thing as a system that supposedly increases clamp load as RPM increases. never been on-board with that system. Other companies claim they increase their clamp force by "modifying" their PP's for greater clamp force. SPEC is elusive on the specifics as to how they do it but claim they do. McLeod says they do nothing to the LT1 PP. ClutchNet, I visited their shop to see, disassembles the PP and heats the diaphram and changes the angle of the fingers to create greater clamp force. pedal effort is greater but I don't know if it "translates" to greater clamp force in reality although Clutchnet says it does. I suspect if it does and other clutch companies claim "greater clamp force than stock", I suspect they do the same thing.....but finding any company to publish specifics in "how" is something I have never found.
hopefully your next clutch will be plug & play. I gave up on single disc clutches after killing a variety of brands when I went 383. I now have a McLeod Street Twin. Pricy but man it holds and drives like a stock clutch
why do you pull your motor to remove clutch??
Thread Starter
Teching In
Joined: Jul 2009
Posts: 14
Likes: 0
I will not be putting this clutch back in. Gonna cough up the cash for the mcleod twin disc. Just sucks I have to get a whole new setup including the flywheel because my conversion flywheel was not cheap.
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
yeah can't use a LT1 flywheel for the Street Twin. The LT1 Street Twin also comes with a 13/64" Wilwood MC.
Is the LT1 stock motor or is it built?
280Z is a light car so if your motor is stock or just bolt on mods than a single disc along the lines of a SPEC 3+ would work and not cost as much as the Twin and you use your existing flywheel
The Street Twin comes with organic discs but you can get ceramic puc if the use is more race vs street. Either disc type a "twin" disc clutch has twice the holding power as a single disc clutch.
Is the LT1 stock motor or is it built?
280Z is a light car so if your motor is stock or just bolt on mods than a single disc along the lines of a SPEC 3+ would work and not cost as much as the Twin and you use your existing flywheel
The Street Twin comes with organic discs but you can get ceramic puc if the use is more race vs street. Either disc type a "twin" disc clutch has twice the holding power as a single disc clutch.
Thread Starter
Teching In
Joined: Jul 2009
Posts: 14
Likes: 0
yeah can't use a LT1 flywheel for the Street Twin. The LT1 Street Twin also comes with a 13/64" Wilwood MC.
Is the LT1 stock motor or is it built?
280Z is a light car so if your motor is stock or just bolt on mods than a single disc along the lines of a SPEC 3+ would work and not cost as much as the Twin and you use your existing flywheel
The Street Twin comes with organic discs but you can get ceramic puc if the use is more race vs street. Either disc type a "twin" disc clutch has twice the holding power as a single disc clutch.
Is the LT1 stock motor or is it built?
280Z is a light car so if your motor is stock or just bolt on mods than a single disc along the lines of a SPEC 3+ would work and not cost as much as the Twin and you use your existing flywheel
The Street Twin comes with organic discs but you can get ceramic puc if the use is more race vs street. Either disc type a "twin" disc clutch has twice the holding power as a single disc clutch.
