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      03-04-2013, 08:48 PM   #5

Drives: 2008 M3 Sedan AW
Join Date: Dec 2008
Location: Syracuse NY

iTrader: (0)

Pad Deposits from Z Rated

Personally, I would not use Z-Rated PFC's at the track. I know some have with success, but my experience was not positive. I had used them for moderate track duty on a C5 Corvette without issue, but the M was a different story.

These deposits were after 2 days at WGI. They stopped just fine, but with a very definative "GRRRRRR" on the track.

On the way home, the rotors were simply unbearable with the vibration. After 300+ miles, I was ready to hone them to see if they could be saved. On the advice of a friend I switched back to the stock pads do the clean up work - it took nearly 750 miles to remove the deposits and return the rotors to normal.
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