When my brakes get hot from getting a hard time(i mean lots of hard braking) they develop a warp/wobble feel, but when they are being used day to day driving and cold they are fine.

Does this mean they are warped or is it something else? If they were warped wouldnt they feel warped when day to day driving ? or is this not necessarily true?

 

I had the same problem and had these same questions. seems like the discs can develop hot spots which only reveal themselves when they get really hot. My front end would shake when I would press the brakes at the bottom of my commute down the side of a mountain. in normal driving, they were fine.

I replaced my front rotors with some Brembo blanks and everything is smooth and wobble free. change your front discs, you'll be happy you did. while you're at it, upgrade your front pads and upgrade your brake fluid.

good luck.

 

This means they got warped when they were too hot. And after cooling down they went to normal. You need some brake ducts for cooling or a new bigger disc...

 

Go to AutoZone, and get some new front rotors. Part # 3296.

 

An Autozone in the UK?

try this..
http://www.stoptech.com/whitepapers/...otors_myth.htm

 

I feel for you man.
But, in other words... Get some new rotors.


[Modified by XR4racer, 9:33 AM 10/23/2002]

 

Most likely you have uneven pad material deposits on your brake rotors. You don't feel the vibration during normal driving because you probably don't push the brake pedal as hard as when you are racing so the vibration is a lot less apparent.

Either get your rotors resurfaced (one shut deal then you have to change them if vibration reappears) or get new rotors right away. To prevent uneven deposite of pad material try to let your rotors cool down before coming to a complete stop after hard driving.

 

Thanks for all your help guys. Looks like I will be going for new pads and discs then!

Yes I am in the UK, its not that difficult to get parts > harder because they are 262mm 96 Spec - Which probably explains the overheating problem .

I have had these on for just under a year and they are aftermarket items that cost about £150($300) so im not that upset about getting some new ones.