turborich said:
So you are saying that rotors don't warp? Rotors do in fact warp.
This was proven incorrect after several major manufacturers began examining the material and the metal grain.
They found that the "warped" rotors being returned were not warped at all. The examined the metal grain, cut them up, everything, and they could find no signs of warpage at all. In fact, they found that a rotor will develop massive visible cracks before it will ever warp.
What they did find was that cheap brake pad materials were being transferred from pads to the rotors surface.
I have never had a problem with rotor warpage on my Mark VIII since I started bedding the pads properly, and I use my brakes so hard that I have literally fried pads, but never any rotors.
On the same side of things, I have seen $4000 brake kits with rotors the size of pizza plates get "warped rotors" under normal driving simply because they were not bed properly.
There was a guy on LOD who purchased a set of Frozen Rotors for his mark VIII. They warped within 4k miles. He was told by Frozen Rotors that his rotors had excess material transfer and to clean them off with a wire brush. Cleaned them off, bedded his pads properly, and never had another problem since. Frozen Rotors says they have never had a rotor warp, a claim which has gone undisputed to this day, even after years of business.
It's just old thinking. People see metl with an uneven surface, and they just blame it on warping. But it turned out to be far more complex than that.
