Originally posted by path914: Maybe there's a reason Bembro has the holes cast into the disks instead of drilling the blanks
Not true at all. Cast in holes is a fable created on the internet. One that even I sadly had succumbed to for awhile.
Drilled rotors do have thier place, but your typical street car is not it at all. Drilled rotors are only of benefit when you have significantly more mass than required for thermal effects. Sport Bikes are a prime example of where drilled rotors make sense.
Drilled rotors WILL crack on a street car, especially where the rotor is the same as was originally sized for the car from the factory.
I wish I had more time to do a proper treatise on drilled rotors.
