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      08-13-2023, 09:43 AM   #342
rhyary
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Quote:
Originally Posted by Artemis View Post
I recall a few years ago a thread reporting some drama about CCB's on the M4 (not properly fitting, getting damaged: replacing those rotors hurts your wallet if not replaced under warranty).
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This is not entirly accurate.
The latest CCB have friction layer made out of Silicon Carbide. SiC does not oxidizes at high temperature like Carbon.

Porsche initially came with PCCBS then switched to PCCBH. The CCBS type had friction layer with a lot of carbon which was not durable for trackdays. Perhaps this is when the idea of replacing PCCB with grey iron rotors developed.

The third type is CCM and is used by Ferrari and McLaren. This carbon ceramic brakes do not have friction layer and oxidizes even faster then CCBS on trackdays.

Luckily the friction layer can be restored,
no need to buy new, and the friction layer is the latest technology. It will last 3 times or more than grey iron rotors and the cost is less than half of new.
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