Quote:
Originally Posted by Billy10mm
The only people saying that the clutch isn't powerful enough to handle the torque of our motors is a company that makes replacement clutches. And many of us aren't buying that excuse since being at the track doesn't impart any additional torque on the clutch over a good on-ramp romp. The most clutch-abusing form of auto-sport is drag racing, and the stock-powered SS and 1LE guys are having no issues with the OEM unit.
My stock 1LE clutch doesn't slip at any rpm in any gear. It's easy to tell, you'll see your revs increase without any actual improvement in speed. There was a "It's fixed!!" hooray in the big clutch thread after the after-market clutch was installed, but that only lasted a few weeks - it's happened again to that person.
It appears that our problem is water in the lines, and it is being suggested that people flush their clutch fluid before and after each track event (big PITA as you know since you replace regularly). Air is being introduced into our lines under hard use, getting very hot, and forming condensation as it cools.
Fix the air leak, fix the problem. Caps, hoses, fittings, clamps.
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I can see your perspective on this but I disagree to some extent with the open air system because my brakes are not sharing the same fate as my clutch using the same hydraulic system. That doesn't mean I think the system couldn't benefit from your suggestion.
This is a heat issue at the core, plain and simple, The clutch system is getting so hot that it boils the fluid on the clutch end of the system before the brake end. So in therory the clutch is running hotter than the brakes. The crazy thing is, I changed the fluid the day before my pedal went to the floor, so it had zero moisture, possibly air but I doubt it since the clutch actuation felt the same as before.
So where is that heat from? This is why I think it is slippage and heat stacking over long periods seen on the road course. As far as slipping, Im not speaking that the clutch is continuously slipping but rather torque loading, such as down shifts, throttle spikes, heck even if it was minutely slipping it wouldn't always be felt or shown on a gauge but it would be putting massive amounts of heat in the system. I believe this is the direct link to the release bearing support failures and the subsequent destruction of slaves and release bearings.
Maybe upgrading the bearing support will fix bearing and slave failure but it won't stop fluid boil.