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      03-22-2013, 11:58 PM   #65
admranger
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Drives: ‘19 X3M40i, ‘18 m550i
Join Date: May 2011
Location: Las Vegas, NV

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Quote:
Originally Posted by jml View Post
Yeah, TWS is not that hard on brakes - but to be honest I'm probably not braking as hard as I could.

Four issues with ceramic

1) They cost $5000 for each rotor
2) They chip very easily, and once chipped, can lead to a failure - so need to be replaced.
3) They transfer more heat into the pads and fluid (the yellow calipers have a bunch of features, like ceramic pucks between the pads and pistons, to keep the heat out)
4) They chew through pads faster and rotors last about 2-3 times as long as OEM steel.

And as far as I can tell, as long as you don't overheat the steel rotors with race pads, which I have yet to do, the PCCBs offer no improvement in performance. NOW, I have not driven it on a brake heavy course. COTA at the BMW event in June will ultimately tell me the answer to this. Even if I did have a problem...I still don't think I would run PCCBs - they are just too baller for me. I put the PCCB rotors in the attic for the next owner.
Interesting info on the ceramic rotors.

Enjoy the car. I know I would!
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'19 X3 M40 Carbon Black/Oyster, '23 Jeep Grand Cherokee L Summit, Past BMWs: '18 M550i, '18 330 GT, '16 X5 40e, '11 E90M3, '06 X5 4.4, '03 330i ZHP, '02 M3, '97 Z3 2.8, '95 M3 (2x), '94 530i (manual), '92 525i (manual), '88 M3, '87 325iS
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