Autocross and Road Racing Technique There is more to life than a straight line

clutch recomendations

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Old Dec 18, 2003 | 07:29 AM
  #16  
thermwood1's Avatar
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From: Newburgh, IN
So Sam, how much is the SLP kit that you sell. Clutch, pp, throwout bearing? Also, how much is the SLP flywheel.

Isn't the SLP clutch disk the same as a stock one? Thanks.
Old Dec 18, 2003 | 01:49 PM
  #17  
Sam Strano's Avatar
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thermwood.... sent you a PM
Old Dec 18, 2003 | 09:46 PM
  #18  
TA Dreaming's Avatar
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oops forgot i started this thread so i didnt realize people were repling to me. anyway. thanks Sam. im still working with the stocker now. its still fine but itll let go from time to time and it doesnt like the mountains too much. thats where it first started failing. hasnt given me notciable problems on the autox cross last time i did it.

Brian the clutch disc and friction plate are the same thing. dont know if its included with the pp package. i doubt it though.

also replace the pilot bearing too. the very end of the input shaft rides on this. it sits in the back of the crank. and also replace your rear main seal. your there might as well. Trey
Old Dec 19, 2003 | 12:42 AM
  #19  
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From: Los Angeles
thanks for the info

i took the car to a couple tranny shops in the area and the conclusion is that my clutch still has more life in it but the flywheel or pressureplate is probably warped or has hot spots!

i guess that could be the result of my 25min uphill highway gridlock stop-go fiasco?

anyhow, is it generally HARMFUL to be driving on a clutch that chatters about 1/4 of the time? it's more noticeable in traffic when the tranny is hot. my concern is that the chattering will cause wear on the rear end and other driveline components as well as the body, the hatch shudders quite a bit when the clutch hesitation gets bad.

p.s. quotes on clutch installation labor run $260-350.

thanks, Brian
Old Dec 19, 2003 | 07:14 AM
  #20  
thermwood1's Avatar
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Hey Sam,

Thanks for the response. Don't mean to hijack the thread, but another question.

I know the SLP clutch, pp, and billet flywheel would work well with a stock motor, but what about a motor making between 400-500 hp? For now, i would probably go with the SLP setup, but will the SLP billet flywheel work well with a motor with this kind of power and a different clutch to handle the power? Or would a stock style flywheel (heavier) be better in this case? Thanks for the help.

Also, i read somewhere that someone said when using the Centerforce clutch that it is recommended to use an adjustable slave cyclinder. Any experience with this?
Old Dec 19, 2003 | 02:30 PM
  #21  
Sam Strano's Avatar
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From: Brookville, PA
Originally posted by thermwood1

I know the SLP clutch, pp, and billet flywheel would work well with a stock motor, but what about a motor making between 400-500 hp? For now, i would probably go with the SLP setup, but will the SLP billet flywheel work well with a motor with this kind of power and a different clutch to handle the power? Or would a stock style flywheel (heavier) be better in this case? Thanks for the help.

Also, i read somewhere that someone said when using the Centerforce clutch that it is recommended to use an adjustable slave cyclinder. Any experience with this?
It really depends on what you're going, how you are driving the car. Drag racing is much harder on a clutch than anything with that kind of power. But if you don't have traction, it's not usually a problem. Deeper gears help the clutch since you have more gearing advantage to help get moving. The most stressed thing will slip first, with a lot of traction or trying to move a lot of weight with a lot of power and tall gearing, that's usually the clutch.

Flywheels. The SLP is billet steel, and is really strong. But for drag racers, I usually recommend a Centerforce flywheel, or something heavy. You want that inertia for your upshifts. it's the guys who want the throttle response up and down the rev range that would want the lighter flywheels, like road racers or autoxers. Heavier flywheels are smoother to drive than the really light ones too. SLP's isn't hugely light and drives very nicely on the street.

Centerforces have more holding power, but only when the RPM's are up vs. the SLP. The clutch needs RPM for the weights on the PP springs to apply pressure. I've never had an issue with one, with the stock hydraulics....
Old Dec 19, 2003 | 02:42 PM
  #22  
Sam Strano's Avatar
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From: Brookville, PA
Originally posted by thermwood1

I know the SLP clutch, pp, and billet flywheel would work well with a stock motor, but what about a motor making between 400-500 hp? For now, i would probably go with the SLP setup, but will the SLP billet flywheel work well with a motor with this kind of power and a different clutch to handle the power? Or would a stock style flywheel (heavier) be better in this case? Thanks for the help.

Also, i read somewhere that someone said when using the Centerforce clutch that it is recommended to use an adjustable slave cyclinder. Any experience with this?
It really depends on what you're going, how you are driving the car. Drag racing is much harder on a clutch than anything with that kind of power. But if you don't have traction, it's not usually a problem. Deeper gears help the clutch since you have more gearing advantage to help get moving. The most stressed thing will slip first, with a lot of traction or trying to move a lot of weight with a lot of power and tall gearing, that's usually the clutch.

Flywheels. The SLP is billet steel, and is really strong. But for drag racers, I usually recommend a Centerforce flywheel, or something heavy. You want that inertia for your upshifts. it's the guys who want the throttle response up and down the rev range that would want the lighter flywheels, like road racers or autoxers. Heavier flywheels are smoother to drive than the really light ones too. SLP's isn't hugely light and drives very nicely on the street.

Centerforces have more holding power, but only when the RPM's are up vs. the SLP. The clutch needs RPM for the weights on the PP springs to apply pressure. I've never had an issue with one, with the stock hydraulics....
Old Dec 19, 2003 | 06:12 PM
  #23  
WOOS1's Avatar
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From: Hopkinsville, KY USA
Sam, can you feel a difference in accelleration with the SLP flywheel? Thanks
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