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Guys, a little input to bring up an old thread, but in my experience, most 'brake fade' is more down to gas contamination than just the temperature, we had to run stock brakes, no vents, in the beetle cup races, but we could groove them, this dramatically improved the gas removal and hence braking power. previously, the discs needed fetling every run, the gas leaving an almost greasy residue, now i got lazy and did them for every event. most dont even twigg it, why ya doin all that? the DA sander is the tool of choice, cross drilling is not the way for racing, they crack easy, grooves work best....
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