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      03-23-2013, 12:58 AM   #66
admranger's Avatar

Drives: 2011 M3, 2016 X5 40e
Join Date: May 2011
Location: Alexandria, VA

iTrader: (0)

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!
'11 E90 M3, Mebourne/Black/Fox Red/Black, 6MT, PP2, heated seats, moonroof, split folding rear seats, iPod/USB adapter, Dinan F sway bar, Arc-8's, Technic harness, JL XD 6/600.

'16 X5 40e, Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, HK