Did I screw up my brakes?
I installed brand new brembo discs and hawp HP+ pads on my FD. I didn't properly bed them in, I just drove normally for 4-5 days, then went to a track day. (I was invited the very morning so I didnt have time to do a proper bed in for the brakes)
the brakes made quite a lot of smoke after the first few runs, then they stopped smoking. I felt that the brakes had less braking power after the first few runs. Still enough to trigger ABS, but I had to press harder on the brake pedal now after a few more days of normal driving, my rotors look like this. They still brake fine but the black/grey spots won't go away. Is this normal? http://img.photobucket.com/albums/v2...a/DSC_0414.jpg http://img.photobucket.com/albums/v2...a/DSC_0415.jpg |
It looks like pad deposit. It's pretty common occurrence when the pads are overheated. Unless you are getting vibrations, don't sweat it, it will diminish with time.
The HP+ are great pads and I use them for street and autoX. However, I strongly suggest a more track worthy pad if you intend on doing more track days. The HP+ friction curve drops like a rock if you get them too hot resulting in a serious pucker moment. Did that exactly once... |
Yup... overheated pads transferred material. Next track day you do, put some track pads like PFC 01, or even Hawk blue or DTC 70's, and they'll clean that crap right off.
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pretty sure you can sand the pads and rotors and 'start over.' i think one of the brake companies has a writeup somewhere. wouldnt recommend doing any racing type activity with them like that tho.
break in is very important, esp with race(ish) pads. which includes HP+ |
You can always turn the rotors and start the break in period from scratch.
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Use a Rotor Flexhone or Scotch Brite with brake cleaner to clean off disks and re-bed the pads in. Here is a good bedding procedure you can use.
If it happens again, maybe it is time for pads that are more suited for the application. http://www.endlessdata.info/Endless%...d%20manual.pdf |
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