Warped Front Rotors?

03evoIII · 10-20-2018, 10:05 AM

Just curious if anyone else has had similar issues. Last Friday I went to the track and literally within three 5/10s laps, one which was warm-up lap I felt a vibration from the brakes. It was bad enough for me to call it a day after only a few laps. I’ve never had this happen and was pretty bummed. The tiny rotors on my 996 turbo held up all day at the track on multiple track days as well as my old gen2 viper brakes. I’ll need to replace them now. I don’t want to go with stock or drilled so I was thinking about some stoptech rotors since they are about the same cost. Any body have any other recommendations? Thanks!

CanAutM3 · 10-20-2018, 11:47 AM

a little. There are plenty of threads on the topic.

Most likely, your rotors are not warped and you have uneven pad deposit on the rotors. The stock pads are not best suited for track and will smear an uneven deposit when overheated, which occurs if you don’t do the brake management needed for stock pads and/or use DSC/MDM on track. The brake shudder should go away after a few weeks of regular street driving to wear down the deposit. No need to change the rotors.

03evoIII · 10-20-2018, 12:01 PM

I did actually search for “warped rotors” and didn’t see much except for upgrade posts. Ok well thanks for the heads up! And that is actually great news. I’ll search for what is recommended for track pads. Thanks again!

CanAutM3 · 10-20-2018, 01:07 PM

Quote:

Originally Posted by 03evoIII

I did actually search for “warped rotors” and didn’t see much except for upgrade posts. Ok well thanks for the heads up! And that is actually great news. I’ll search for what is recommended for track pads. Thanks again!

https://f80.bimmerpost.com/forums/go...arped%20rotors

10-20-2018, 10:05 AM	#1
03evoIII Scot - 2015 M3 SO 4 Rep 47 Posts Drives: 2015 Sakhir Orange BMW M3 Join Date: Mar 2018 Location: Parker, Colorado iTrader: (0)	Warped Front Rotors? Just curious if anyone else has had similar issues. Last Friday I went to the track and literally within three 5/10s laps, one which was warm-up lap I felt a vibration from the brakes. It was bad enough for me to call it a day after only a few laps. I’ve never had this happen and was pretty bummed. The tiny rotors on my 996 turbo held up all day at the track on multiple track days as well as my old gen2 viper brakes. I’ll need to replace them now. I don’t want to go with stock or drilled so I was thinking about some stoptech rotors since they are about the same cost. Any body have any other recommendations? Thanks! __________________ Scot - 2015 M3 Sakhir Orange, catback, BM3
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10-20-2018, 11:47 AM	#2
CanAutM3 General 21117 Rep 20,741 Posts Drives: 2021 911 turbo Join Date: Jan 2012 Location: Montreal iTrader: (1) Garage List 2022 Audi RS6 [10.00] 2021 Porsche 911 turbo [10.00]	a little. There are plenty of threads on the topic. Most likely, your rotors are not warped and you have uneven pad deposit on the rotors. The stock pads are not best suited for track and will smear an uneven deposit when overheated, which occurs if you don’t do the brake management needed for stock pads and/or use DSC/MDM on track. The brake shudder should go away after a few weeks of regular street driving to wear down the deposit. No need to change the rotors. __________________ Porsche 911 turbo 2021 992 GT Silver Previous cars: M4cs 2019 F82 Limerock Grey / M4 2015 F82 Silverstone / M3 2008 E92 Silverstone / M3 2002 E46 Carbon Black
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10-20-2018, 12:01 PM	#3
03evoIII Scot - 2015 M3 SO 4 Rep 47 Posts Drives: 2015 Sakhir Orange BMW M3 Join Date: Mar 2018 Location: Parker, Colorado iTrader: (0)	I did actually search for “warped rotors” and didn’t see much except for upgrade posts. Ok well thanks for the heads up! And that is actually great news. I’ll search for what is recommended for track pads. Thanks again!
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