I was praticing launching my car last night. I turned VDC off. THe second time launching towards 4k rpms the clutch pedal sticks slowing down the car a little bit. This did not only happen once, but 2-3 times. This happened long ago at the track also. Now daily driving i dont see a problem. Just when i launch. Yes i did launch a few times without this problem. WHAT is going on for this to happen ever so often? Ive been thinking about replacing stock clutch and flywheel. Is this common?

 

yea ... i went through the stock clutch/flywheel in 10,000 miles. now at 20K and not a problem with my JIC/Stillen combo.

 

i am at 5k miles....at this rate..it will be 10k

 

Learn how to drive. I have 16k on my Z with lots of track time on the stock clutch. Doesnt slip at all.

 

i know how to drive :-p clutch shouldnt slip like it does

 

Here's a hint: dont launch your Z at 4000rpms and the clutch wont wear out prematurely. There are people on this board in the 12s that launch under 3k. You'll wear out an aftermarket just as fast with your type of driving.

 

43k on my clutch when I pulled it out...

I had PLENTY of clutch left.

 

I had about 40,000 also on my stock b4 swapping it and it was fine on the road but was slipping it at the track.. I had about 25+ trips down the 1/4 b4 any major problems.... I think the stock clutch is pretty decent...

 

i was launching at 3k. My toyos are pratically new. Maybe they are sticking to good? slipping didnt occur until 4.5k. I need a few great launchs. I am goint to the track thursday night to test it out again....any good pointers?

 

Slip at 3500rpm... It'll give you a nice launch!

 

Yes, sticky tires can cause a slipping clutch but I've only experienced it with DRs. If your clutch is really slipping, it will show when you accelerate from a roll. Get the car in 5th gear and floor it. See what happens.

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I am goint to the track thursday night to test it out again....any good pointers?

If you're racing on a sticky track and warm weather, launch around 3k or 3500 like Phoenix said. If it's cold out and track is not sticky, adjust your launch. 2000, 2500 etc.

Oh, and drive AROUND the water box