So when I bought the car in July of 09, the rotors were severely warped. I replaced the fronts, turned the rears, and replace all pads. About a year later, the shimmy under braking was back, so I turned the fronts and it seemed to help a bit. Now I am having some more brake shimmy. I am wondering if my mechanic just got crappy rotors, or if my driving habits are causing the rotors to warp faster than they should. I NEVER ride my brakes, and don't usually slam on them if at all possible. Does anyone else get warped rotors faster than normal? Any suggestions for goo pads/rotors that don't warp as fast?

 

where did u get the rotors in the first place. Check to make sure your guide pins are frozen causing uneven wear

 

i had brembos for 3 years and drove like a maniac but no warpage.. the only reason i changed rotors is cause i got 13 inchers with r33 calipers

 

There's really no such thing as a warped disc. It's pad material transfer that causes the vibrations. Resurfacing your rotors isn't the cure, only a temp. fix. You need to run the right pads.

This article might help explain it.
http://www.centricparts.com/files/Ce...ake%20Disc.pdf

 

Thanks for the info nj. Sheds some much needed light on the subject

Brandon, what kind of rotors (blank, slotted, slotted/drilled) did you have? And what kind of pads were you running?

 

i had drilled and slotted with EBC Red Stuff pads

 

I read almost the whole article and have to disagree with it/you. I have had warped rotors on 2 occasions - one of them being after I left the car outside for a month in the summer with perfectly working brakes and after I came back from vacation the brakes were non-functional. The pedal was bouncing back and forth when I would try to brake. When I took the rotors to be turned, they told me it is of no avail, since they are warped beyond repair.

 

I don't know if it will help but there are ceramic pads out there that are easier on the rotors.They don't feel that great in my opinion but when i tried them , they seemed to wear out rather than wear the rotors.

 

The article does thoroughly explain the physics of the materials that are used in braking systems. Must be a lot to digest.

So therefore, it must have been the summer brake ghost that screwed you. I've heard he visits cars that sit for a while during the summer months and make mysterious problems develop for absolutely no reason.

OR - Could it have been moisture/rust from rain and the humid summer weather that caused their failure? Cast iron does indeed rust pretty easily when it's exposed to moisture. Perhaps you should Google that?

Or was it really the brake ghost...

Things that make you go hummmm?

 

Uneven or over-torqueing of lug nuts can cause warping, something to do with uneven heat distribution.

 

 

i run centric rotors and pads i love them!





there are a lot of myths that people believe to the death, watch this:



you can mix synthetic oil with conventional!

 

Oh no!!

 

Adding a portion of this to my sig