[FASTFATBOY]

Opinions?

http://stoptech.com/tech_info/wp_warped_brakedisk.shtml#

[EchoMirage]

if hes so smart he should explain to me how i had a warped brembo rotor, fresh out of the box without a pad ever touching it.

[trackbird]

if hes so smart he should explain to me how i had a warped brembo rotor, fresh out of the box without a pad ever touching it.

I might know that one. Rotors are supposed to be stored flat in the box and not standing on edge. If they stand on edge long enough while sitting on the shelf, they seem to take a "set" in a flexed position. At least that was my experience when I worked in the auto parts business and we turned brake drums and rotors in the back. I've seen warped (bent?) ones on the lathe on a few occasions, some were new from the box.

[EchoMirage]

I might know that one. Rotors are supposed to be stored flat in the box and not standing on edge. If they stand on edge long enough while sitting on the shelf, they seem to take a "set" in a flexed position. At least that was my experience when I worked in the auto parts business and we turned brake drums and rotors in the back. I've seen warped (bent?) ones on the lathe on a few occasions, some were new from the box.

i know. you can just drop a rotor and itll warp, which also could have happened. point is, rotors do warp, either from damage or heat. it is NOT just pad buildup, i don't believe that for a second. this particular rotor was so bad i had to keep a white knuckle deathgrip on the wheel when braking while on track, the steering wheel was shaking that bad. i was 3hrs from home and already paid for the day, so no way was i just going to pack up and go home. i had it cut afterwards, and it was significantly warped. tirerack finally gave me a break on another set of C5s, after complaining several times.

[FASTFATBOY]

I might know that one. Rotors are supposed to be stored flat in the box and not standing on edge. If they stand on edge long enough while sitting on the shelf, they seem to take a "set" in a flexed position. At least that was my experience when I worked in the auto parts business and we turned brake drums and rotors in the back. I've seen warped (bent?) ones on the lathe on a few occasions, some were new from the box.

i know. you can just drop a rotor and itll warp, which also could have happened. point is, rotors do warp, either from damage or heat. it is NOT just pad buildup, i don't believe that for a second. this particular rotor was so bad i had to keep a white knuckle deathgrip on the wheel when braking while on track, the steering wheel was shaking that bad. i was 3hrs from home and already paid for the day, so no way was i just going to pack up and go home. i had it cut afterwards, and it was significantly warped. tirerack finally gave me a break on another set of C5s, after complaining several times.

If you read that article, it says that if the rotor was good to begin with, mounting surfaces clean, mounted and torqued correctly he has never seen a rotor warp.

Funny Echo, I carry a spare set of rotors with me to every event(among other spares). You had this happen and crack on me for carrying spares lol!