Quote:
Originally Posted by matt36415
The size of the Porsche brakes is probably several times bigger than a corolla, probably a much larger ventilation space between the two faces.... possibly different material... very different systems in a Porsche and Corolla
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The stock brake rotors are actually not that big, I would guess 12-13" diameter at most. The ventilation space is a touch bigger than the brakes on my MR2, which are just as wimpy as Corolla brakes. The material is definitely not different, all cars use either cast iron or carbon ceramic.
The reason I'm surprised is because brake cooling ducts are extremely useful on track cars, but I've never seen them from the factory on a car that isn't something like a 911 GT3. Including all the Cayman and 911 models right now, minus the GT3. In fact the Nissan 350/370Z were famous for extreme brake fade despite bigish rotors that led to lots of crashes, and adding a cooling duct solved that problem.