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Old 07-10-2010, 08:08 PM   #1
Mstearnsy
Registered User
 
Join Date: Oct 2008
Location: London, ON, CA
Posts: 151
My Ride: 2006 M3 Competition
M3 Competition package brake fade?

Hey everyone. Some friends and I ran a "super autocross" on an airport's triple runway setup. I have an E46 M3 with Competition Package (with the larger Euro CSL cross drilled brakes). On a lot of the braking zones I was doing full on braking from up to 120 MPH.

On the first hard lap, a car following me said a big puff of brake dust came out during the hardest stop. After that, I had a bit of a shudder while braking. I let them cool down and the shudder never returned.

After a few more laps with max-attack braking, at one corner my pedal got really soft and my brakes didn't perform nearly as well. I made it around the corner and on the next straight, tried my brakes again and they were definitely faded away. Drove several cool down laps, without braking, and then parked the car.

I could be imagining it but it kind of feels like my brake pedal isn't quite as firm as it used to be a few hours after the track use now. Could the brakes be affected permanently after this kind of aggressive use? Am I just imagining that it's not quite as firm?

I know I'll need new pads and rotors soon anyways as there's 66,000 kms on the original pads and rotors. I'll be installing the stock Competition pkg brakes. I was also considering installing stainless steel brake lines. Are these worthwhile? Should I upgrade the brake fluid? This kind of use is EXTREMELY rare for me but I would like to do it again occasionally. Thanks a lot guys.
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im 25 baby!
i drive a saweet ass car and get more puss puss than a porn star so grumpy no no no sinyor :)
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