I don't mean heavy use right out of the box. When I said brand new rotors, I meant brand new and run-in with old pads.

 

Mark, are these the same rotors you were using when you showed me pics of your overheated brake pads?

 

J.P., no, I installed the new rotors on July 12, and I showed you the overheated pads on June 30.

BTW, those pads held up pretty well, as you told me they would. I finally replaced them for the track day on Tuesday, so I got five or six track days out of them. In the meantime, I've put in brake ducts. There was no sign of overheating on the pads I put in and bedded for Tuesday, but I think I'm braking harder than I used to, since they wore down a good bit.

 

Fair enough, I didn't have the timeline. In a way I'm glad to be vindicated on the pad issue.

Truthfully I'm not sure why you had an issue with that particular rotor. We have literally hundreds of them in service, some on track cars, some not. If it was a design flaw then we would have seen more than the odd report of premature cracking. The company that makes them is not a small outfit and they make rotor blanks for just about every car out there, including as a supplier for some OEM manufacturers. Unfortunately there's really no warranty on those, especially if they've been subject to the types of heating seen on the track.

I'm glad you have the ducting in place. Yes, the faster you go the more the pads will wear Funny how that works ;p

 

just curious what are the prices? i cant believe brembos would be less than oem mazdas!