Quote:
|
Originally Posted by phoenix
No straight 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.
|
I know this post is old, but i had a good laugh when i read this!
Next time you have a look at a Porsche road car with disc's that have done a fair few km's, or a car that is tracked, you'll see *many* cracks. When they are 3-4mm long out of each side of the hole (or about to connect to each other!), they are scrap
I've seen disc's after one day of heavy use with cracks 2-3mm long! Porsche are not immune, and their disc's are cast with holes, not drilled after manufacturer like some are.