Bad Brake Fade - Discs

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jamesc
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Post Thu Jul 31, 2008 11:54 am

Hi All,

I have an 325 that has been standing for about a year, and is suffering extreme fade when the brakes get hot (track temps rather than road). I have flushed the brake fluid for new stuff (ATE super blue so I could see when the new fluid was through), and fitted new EBC yellowstuff pads. The brakes seem fine on road (though lacking bite) and passed an MOT ok. However on the track as soon as some decent heat built up there was no braking force at all. The pedal still felt firm though so I don't think its fluid or an air lock. I changed back to the old pads but exactly the same thing happened. Could it be the old discs causing the problem having not been changed since standing? Or any other suggestions?

Thanks,
James
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billgatese30
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Post Thu Jul 31, 2008 7:07 pm

it could be, or it could be the fact that the new pads haven't had chance to bed to the shape of the disc if it hasn't worn evenly, creating hot spots which could be causing fade, how many road & track miles has everything had on them?

I would try new discs, considering how cheap they are, and trying to bed the pads in properly assuming they have no badly uneven wear patches on them already
fuzzy
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Post Thu Jul 31, 2008 7:22 pm

what type of discs do you have?
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jamesc
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Post Fri Aug 01, 2008 8:05 am

The discs are Black Diamond Grooved, and had done about 300 miles on the new pads before going on track (the red 'brake in' bit on the yellowstuffs has gone).
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Black_Potato
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Post Sun Aug 03, 2008 11:39 pm

I'd suggest some ducting to the disks or PAGID RS 29's