How can you guys measure the wear on the ceramic rotors, or what to look for in them??

 

i dont know the measurement techniques... but i think cracking is the more important issue to look for... particularly hairline cracks that go hole to hole..
its very hard to see ... thats about all i can add... hope it helps

 

I have hairline cracks around the holes but was told that it is OK, as long as the crack doesn't span three holes. Can anyone confirm this?

 

Well I think it just depends how hard you drive them. When I had my turbo, I hit 15k miles and still had 90% of the brakes left, but if you drive them hard, I think by 15K you're going to be well of into the second set.

 

Thanks fella's, my GT2 came with the steel rotors on it and ceramix in boxes. Just wanted to guage how much use were on them, guess i'll ask my shop!

 

Martin - Just put the ceramics back on to stop da beast...lol

 

You have hairline cracks on your pccb rotors?

 

Yea i want to put them back on for the track days, we'll see!

 

I think it is impossible to measure wear in ceramic rotors, I believe the computer keeps track of the wear based on number and "strength" of applications. At least in the Ferrari world that is how it is done.

Gary

 

Guess its just time for a new car Martin

 

There was an article about PCCB and SuperCup in Chriophorus...
Mentioned that the Rotors were Weighed for wear...not measured

 

Wow thanks for the info fella's, i'll ask my friend at Porsche if he can weigh them then, if that is the procedure!

 

From the salesmen I've talked to, the general consensus is that the PCCB's can be gone after a weekend at the track! ...

 

I don't think you can measure wear on ceramic rotors, because part of the wear happens internally or structurally. I never heard of the "weighing" technique before. Maybe. In extreme cases, you can see pitting and a rough looking surface on the rotors.

 

JoeyG - I believe the salesman is full of ****. I could not see a set of ceramics wasting away by your average or pretty good track driver. Maybe a proracer could do that. Just my 2 cents.

Byron