recurring brake rotor problem...

[s1ngletracker]

side note, has anyone used Axxis ULT brake pads?

I want some decent front brake pads, but I don't really feel like spending $150-200 on a super nice set right now, as I likely won't actually be doing any track days with this car, so I don't need a race set of pads. I just want something that will hold up well on the street/autox/rallyx.

These seem like a decent set for those purposes, and can be had for $77.50 shipped.

[iceminion]

I worked at goodyear for several years, I am not the best brake specialist in the world, but I am probably one of the most experienced here in said field.

Your rotors are warped, you need to replace them, Ive always used crappy pads with no problems, and I decelerate from illegal speeds to 30mph often.

I worked for auto value, and when we stocked rotors, we threw them as frizbees, and dropped many, just because you bought "new" rotors, does not mean that they are true.

check the warranty status on your rotors, and warranty them.

You have to understand that napa uses the worst quality metal from china, old cars melted down do not make good rotors, the inconsistency of the metal causes warping sometimes.

brembo blanks are the best quality OEM rotor money can buy.

[1QUICK4]

1 out of 3 NAPA rotors I install are warped out of the box. I swear the stock boys must drop kick them off the truck.

Try resurfacing them, I cut every new Napa rotor I install now.

[Andrew7dg]

I am not the best brake specialist in the world, but I am probably one of the most experienced here in said field.

when we stocked rotors, we threw them as frizbees, and dropped many, "




WTF!?

Point back to the cleaning of your hubs to see if that is causing the issue.

Also take your rotors in to have them turned, That will tell you for SURE if your rotor is warped or not. O'reilly does this service for you. if they aren't turnable they will tell you and not charge you. or just ask them to see if they are turnabout to begin with

[s1ngletracker]

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.

[s1ngletracker]

Alright, so I got some old rotors turned, got the AXXIS pads installed, and burnished in very thoroughly. Going by the books this time. Giving the brakes some time to cool off, and then i'll be out to test them a bit more. I have a good feeling about things this time :) After 3-4 brake jobs in the last year, I'm ready for these to last a while.

I closely inspected my calipers, I really can't imagine anything being wrong with them. The sliders move like butter, the pistons move smoothly and easily were pushed back in to make room for the new pads. I'm gonna rule them out.

[Kracka]

You have to understand that napa uses the worst quality metal from china, old cars melted down do not make good rotors, the inconsistency of the metal causes warping sometimes.

brembo blanks are the best quality OEM rotor money can buy.
You do realize a lot of Brembos are made in China with varying consistency right? I'd take a Centric Premium over a Brembo blank if given the choice at an equal price.