clutch not holding anymore. what clutch to buy.

spyder348 · 02-11-2011, 03:48 PM

87 930 just did bolt on upgrades and clutch won't hold in 3 and 4 gears. Should be around 310-320 whp. Is there an adjustment to check or do I need to install a performance clutch kit. What kits are good?

A930Rocket · 02-11-2011, 04:29 PM

Check to see if there is a small gap between the clutch arm and adjustment bolt. adjust mine so it's just barely touching.

The stock clutch should be able to handle 310-320, but if you want a new and improved one, go with a KEP stage 1.

mark houghton · 04:42 PM

+1 what he said ^^^^. If that clutch adjustment is way tight to where it's not allowing the PP to fully release, it could cause slipping and would definitely wear out the TOB sooner than normal. But since this didn't show up until you fell prey to the temptation for my power, then most likely the clutch is tired

Same exact thing happened to me after I started down that slippery slope. Take an old clutch of dubious condition, put another 75 horses or so into the equation, and watch her spin. KEP saved the day and I have been very pleased.

Yes, pull the engine and tranny as a unit. Sooo much easier than trying to monkey around under the car to remove just the tranny. Plus, you can then easily go over the entire engine and find other areas to spend money.

Ken911 · 02-11-2011, 05:00 PM

Check the adjust ment every couple weeks until it won't adjust any more then put a KEP in it.

spyder348 · 02-11-2011, 05:16 PM

Wow thanks for the replys so quick. Rocket I see the pic and understand the logic. I'll check that ASAP. As for clutches is KEP Kennedy. Stage 1 or stage 2. Assuming I need a clutch if I want to buy a lightweight alum. Flywheel and light PP where do I get those?

spyder348 · 02-11-2011, 05:22 PM

so looking at the pic it seems that as the disc wears the PP will move in closer towards the disc making that adjustment bolt hold tighter to the lever which would then not let the PP release fully. do I have this right?

A930Rocket · 02-11-2011, 06:16 PM

Yes. If the adjustment bolt is too close or pressing against the arm, it allows the disc to slip.

Quote:

Originally Posted by spyder348

so looking at the pic it seems that as the disc wears the PP will move in closer towards the disc making that adjustment bolt hold tighter to the lever which would then not let the PP release fully. do I have this right?

A930Rocket · 02-11-2011, 06:20 PM

The difference between the two is holding power. KEP is Kennedy Engineering Product. Stage one should be more than adequete for your horsepower.

Some are happy with the aluminum flywheel/light weight PP, but others say the stock CIS/turbo cars run better with a typical setup.

Quote:

Originally Posted by spyder348

Wow thanks for the replys so quick. Rocket I see the pic and understand the logic. I'll check that ASAP. As for clutches is KEP Kennedy. Stage 1 or stage 2. Assuming I need a clutch if I want to buy a lightweight alum. Flywheel and light PP where do I get those?

spyder348 · 02-11-2011, 06:39 PM

Well then. Hope its an adjustment issue. If not ill go with a KEP stage 1 or 2 and a lightweight flywheel. Are the KEP PPs lightweight?

Tippy · 02-11-2011, 07:27 PM

I have a KEP stage II PP and a Kevlar disc. It can withstand WOT 2nd gear launches.

spence88mph · 02-11-2011, 07:34 PM

You've tested this?!! hahaha

Pimpim · Pimpim's Garage

I bought me one org. sachs but it was to weak so o upgraded my clutch to a centerforce...So hopefully it can stand the heat better

From this...

to this one

Tippy · 02-12-2011, 11:54 AM

Quote:

You've tested this?!! hahaha

I should have mentioned I have a G-50 so my 2nd gear is nearly equivalent to the 1st gear of the 930.

mark houghton · 02-12-2011, 04:57 PM

[QUOTE=spyder348;5841808]Well then. Hope its an adjustment issue. If not ill go with a KEP stage 1 or 2 and a lightweight flywheel. Are the KEP PPs lightweight?[/QUOTE]

14 pounds if my memory serves me correctly. Go directly to Kennedy Engineered Products for more specifics.

spyder348 · 02-12-2011, 05:27 PM

So I drove the car up on ramps and adjusted the bolt. Very easy to do BTW. I'll test it out tom. Looking at the engine and trans. I can def. Tell its the original clutch. It has 64k miles on it. I'm probably not going to get away with the adjustment.

David · David's Garage

KEP Stage I with stock flywheel is my recommendation. The flywheels on the 930's are light enough and with the stock 4 speed the slight extra acceleration in 1st gear isn't worth the hassle when pulling away from a stop light. And yes the KEP pressure plate is one of the lightest ones out there.

Unfortunately I have nothing good to say about Centerforce for a 930.