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M3 Track: Racing and DE Best mod for speed is learning to get the most out of what you currently have. Tracks and DE's is the place to start!


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Old Mon, Aug-19-2019, 07:44:40 PM   #11
mrgizmo04
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Default Re: Rear Centric rotors cracked nearly all the way around?

That is around the thinnest part of the rotor, so possible with enough track heat cycles, it was enough to put the final straw with dragging the parking brake for that long.

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Old Wed, Aug-21-2019, 03:22:51 AM   #12
SQ13
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Default Re: Rear Centric rotors cracked nearly all the way around?

Okay. I will try the cheap Centric rotors again, fix the parking brake wiring (bad connection again...), and keep an eye on the rotors.
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Old Wed, Aug-21-2019, 03:28:31 AM   #13
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Default Re: Rear Centric rotors cracked nearly all the way around?

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Okay. I will try the cheap Centric rotors again, fix the parking brake wiring (bad connection again...), and keep an eye on the rotors.





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Old Thu, Aug-22-2019, 02:51:06 AM   #14
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Default Re: Rear Centric rotors cracked nearly all the way around?

Itís hard to tell from the pic but it looks like you have a pretty good lip around the outside of the rotor. If so, they are probably way past spec. I run PFC08s and cheap Centric blanks all around and I think I have about 2k+ pure track miles on mine (rears) and they are still good. Fronts get changed probably every four events. If I recall the thickness on the rears should not be less than 18.4mm.
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Old Thu, Aug-22-2019, 03:38:54 AM   #15
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Default Re: Rear Centric rotors cracked nearly all the way around?

No lip. The rotors had three track days on them: two at MSRH and three sessions at COTA.
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Discussing Rear Centric rotors cracked nearly all the way around? in the M3 Track: Racing and DE Forum - Best mod for speed is learning to get the most out of what you currently have. Tracks and DE's is the place to start! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)