Warped DBA rotors!!

[brandbuster777]

Originally Posted by BlackLS

Id say driving habits will cause the most problem with rotor warping. Putting the car in neutral at the lights does a LOT to prevent the problem.

You'll find manual falcons don't have this problem as often as autos.

Why is this?

[8POT]

Originally Posted by brandbuster777

Why is this?

the idea is that if you are sitting at the lights with your brakes on the disk will not cool down evenly (where the pads are touching) and cause it to warp.

Manual cars don't need the brake on constantly to stop the car from moving.

[Metdevil]

Originally Posted by 8POT

the idea is that if you are sitting at the lights with your brakes on the disk will not cool down evenly (where the pads are touching) and cause it to warp.

Manual cars don't need the brake on constantly to stop the car from moving.

I can see where the theory comes from, but I don't think anywhere that you're waiting at lights, you're going to be getting your brakes hot enough to cause that kind of damage anyway.
If your brakes are getting hot enough to warp between street lights, there's got to be something else going on.

I decided to check my own brake rotors with a thermal camera after a 40-minute drive (highway followed by town driving) one day and they were no hotter than 70°c, and even then, that was from the internal vanes of the rotor. Turns out that ventilated brakes are actually really efficient at transferring heat away from the friction surface.