heinrich

Shane there is no reason why a well-finctional clutch in a '90 GT should not handle '90 GT torque.

stealth

Check the engine code, it's not '90 GT torque (and it may not have been well-functional, in which case it's a convenient time to upgrade). This car came from the PacNW (Portland), you may be familiar with it.

pmotts

'If' this is the GT I am thinking of (GTS motor) I rode in it 4 - 5 years ago and it is a special Shark. And yes, it had gobs of torque.

stealth

That's it, #0140.

pmotts

Yes, you need a GTS PP Fanatastic car

tammons

Personally I think the ultimate no more slip clutch setup would be a ceramic setup. After going through numorous DD clutch problems, I would welcome the simplicity of a single disc clutch.

Upgraded PP or a GTS PP and a ceramic disc should do it. I found a comapny about 5 years ago that said they could build a custom disc for me for my TT car.

The reason I got interested at all was a fellow down here that worked for a turbo tuner, had a daily driver 911 that was dynoed at 750 hp, he drove it extremely hard, and the clutch had 40k on it with no problems.

Kevin Michael

I'm going to return a call from Tim Murphy after dinner tonight, hopefully he's gonna point me and the slippopotamus(new temporary name for my shark) in the right direction. I'll post what I find out.
Kevin

pmotts

A good GTS PP will suit your needs, imo. I have put on close to 10k since SC'ing on my stock GT clutch pack and no issues. But I am not a clutch dropper and very seldom look to smoke my tires and I am sure individual style comes into play.

stealth

Me, either, but something's wrong if it's not possible (actually, it's the clutch burn when downshifting to 3rd at 60 with the RPMs up for that that bugs me much more than tires not smoking).

Kevin Michael

Gts clutch kit it is. Will order tomorrow. And I ,too enjoy the occasional tire frying. It's the 18 yr old in me.

pmotts

That's pretty drastic. Weak PP and fried clutch would cause slipping during downshift?

Imo000

I'm not sure if I read your psot correctly but, you'll need a lot of HP to do a burnout at 60mph!!!

stealth

If it can't grip well from a stop under heavy throttle then it makes sense that it would have trouble gripping any time the engine spins faster than the tube during a downshift (which is the same as spinning faster than the tube from a stop, only the car's moving). If the RPMs weren't matched just right on the downshift, it would burn and just barely pull, winding out 6500 in 3rd way before its time. If I kept the RPMs near or below where they should be at the given speed for the given destination gear, it didn't slip, just as it didn't if I let it grip well with measured throttle in 1st from a stop before punching it (once it grabbed, it held, but it couldn't grab if it got burning before it was fully engaged because of higher engine RPM).

I assume I am correct in using the past tense but I don't have car back yet, though the clutch is in.

stealth

GTS clutch haven't REALLY tried to spin the tires, as clutch dumping isn't my thing, but now I get good PSD action and no slip. I think the m.c. piston preload is not set correctly, sort of tough to put in gear (seems like I always have this problem when I get a 928 back after clutch work), but sweet pedal and can really feel the engagement versus the old one.

Now to figure out why I only got 321 rwhp/338 rwtq (was expecting about 10 more, running on the rich side over 6000 rpm)...