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s1ngletracker · 03-13-2010

rotors don't normally 'warp' in the traditional meaning of the word, I believe it has to do with pad transfer, hot spots, hardening of the metal and uneven wear. As Kracka has said, and in my own research, it mainly does have to do with pad transfer.

Also, when they were new, they didn't vibrate at all. I would say that eliminates being thrown like a frisbee from the equation.

Are they crappy metal? Probably. They are NAPA premium rotors. Should they last longer than a few weeks before warping? Also probably.

And I'm really trying to asses the root cause here. Getting them turned would fix the problem for a few weeks.

I've got some Axxis ULT brake pads on the way! Then i'll get my rotors turned (or get some centric 120's) and see what happens.

03-13-2010	#35
s1ngletracker Join Date: Oct 2005 Location: The land of the next-gen HMMWV Drives: A BMW Posts: 1,875	Re: recurring brake rotor problem... rotors don't normally 'warp' in the traditional meaning of the word, I believe it has to do with pad transfer, hot spots, hardening of the metal and uneven wear. As Kracka has said, and in my own research, it mainly does have to do with pad transfer. Also, when they were new, they didn't vibrate at all. I would say that eliminates being thrown like a frisbee from the equation. Are they crappy metal? Probably. They are NAPA premium rotors. Should they last longer than a few weeks before warping? Also probably. And I'm really trying to asses the root cause here. Getting them turned would fix the problem for a few weeks. I've got some Axxis ULT brake pads on the way! Then i'll get my rotors turned (or get some centric 120's) and see what happens. __________________ Style's automotive engineer Sponsored by DB Performance (dbptuning.com) A dsm, a bimmer, a DORGE CUMMINZ, and a non running DSM race car... for now. Last edited by s1ngletracker; 03-13-2010 at 04:19 PM..