Quote:
Originally Posted by Alan Cherry
I've been told that drilling discs is mainly for boy racers, and can cause the disc to crack- old discs were drilled , so I've specifically got vented grooved discs that have not been drilled - good move ? or not
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No stratight answer, but Porsche have run drilled disc on competition cars for decades, which they would not do if there was no advantage. However Porsche also seem to be able to avoid cracks, which not many others can claim I believe.