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Should I change brake pads before or after auto-x?

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Old Dec 30, 2005 | 11:23 AM
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Default Should I change brake pads before or after auto-x?

Well I probably wont break the pads in before auto-x
lol...
I will be running with dying pads ...
Any suggestions or comments?

New pads i am going to get - Project Mu Bforce non-brembo
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Old Dec 30, 2005 | 01:08 PM
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Go for a nice long drive, and break them in before you go hard on them
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Old Dec 30, 2005 | 01:11 PM
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umm..
what is the brake break in procedure?
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Old Dec 30, 2005 | 01:14 PM
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Start from a roll to 10mph, slowly break to a full stop, --allow time to cool-- repeat at 20mph/30/40 ect....
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Old Dec 30, 2005 | 01:31 PM
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no no no! It's very important that you DON'T come to a full stop when bedding in brake pads. The whole idea is to heat the pads to adhesion temperature and then deposit a layer of brake pad material on the rotor. I found a white paper on stoptech about bedding in pads, and now I can't find it, but the procedure they outlined for high performance street pads was:

10 stops in a row, 60-10 mph. Go for a drive, (I recommend the interstate) as fast as you can practically and long enough to let the brakes cool to ambient temperature. Until they are cool, do your best not to completely stop the car while the brakes are engaged. Cooling them takes longer than you may think. I burnt the hell out of my fingertips checking the rotors to see if they'd cooled off. These stops are to deposit that layer of brake pad on to the rotor. If done right, you should see a thin grey haze on the rotor.

Once they are cooled, do another series of stops, just like the first. 60-10 mph, again, don't let the car come to a complete stop. This is to cook off some of the resin in the brake pads. Again, let the brakes cool by driving around.

When you do those stops, at first your braking force will increase a little bit (first couple), then it'll begin to fade and you'll smell your brakes. That's normal according to the paper. I checked my pads afterwards as well to make sure they were ok, and they didn't get cooked.

That's what I did with my project mu's, and it worked well, no squeaks yet. The hardest part is just finding a place that you can do 10 60-10 hard stops in a row!
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Old Dec 30, 2005 | 01:36 PM
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Originally Posted by Mr.Jadkowski
no no no! It's very important that you DON'T come to a full stop when bedding in brake pads. The whole idea is to heat the pads to adhesion temperature and then deposit a layer of brake pad material on the rotor. I found a white paper on stoptech about bedding in pads, and now I can't find it, but the procedure they outlined for high performance street pads was:

10 stops in a row, 60-10 mph. Go for a drive, (I recommend the interstate) as fast as you can practically and long enough to let the brakes cool to ambient temperature. Until they are cool, do your best not to completely stop the car while the brakes are engaged. Cooling them takes longer than you may think. I burnt the hell out of my fingertips checking the rotors to see if they'd cooled off. These stops are to deposit that layer of brake pad on to the rotor. If done right, you should see a thin grey haze on the rotor.

Once they are cooled, do another series of stops, just like the first. 60-10 mph, again, don't let the car come to a complete stop. This is to cook off some of the resin in the brake pads. Again, let the brakes cool by driving around.

When you do those stops, at first your braking force will increase a little bit (first couple), then it'll begin to fade and you'll smell your brakes. That's normal according to the paper. I checked my pads afterwards as well to make sure they were ok, and they didn't get cooked.

That's what I did with my project mu's, and it worked well, no squeaks yet. The hardest part is just finding a place that you can do 10 60-10 hard stops in a row!
Where to get 10 60-10 stops?
I think in the middle of the night in the national park (valley forge) would be possible


Thanks for info
You got the B-force or the N(something)?
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Old Dec 30, 2005 | 02:14 PM
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I believe that StopTech has a good tutorial on their website on brake bedding.
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Old Dec 30, 2005 | 09:26 PM
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Yeah, B-Force (on the rear, anyways, fronts are still on backorder). Even just on the rear, the improvement was noticeable.
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Old Dec 31, 2005 | 11:50 AM
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..
...
what about the EBC Red stuff pads?
$79 front $69 rear
pretty economic
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Old Jan 2, 2006 | 12:57 PM
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on these site i found a bether understanding on how to bed in the brakes

http://www.zeckhausen.com/bedding_in_brakes.htm
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