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post #1 of 10 (permalink) Old 06-07-2011, 07:33 PM Thread Starter
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Hawk HPS

I just installed some hawk hps pads. Followed the bed-in procedure. Afterwards it seems as though they bite hardest about 50% braking pressure, anymore than that and it grabs less. Is this normal?
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post #2 of 10 (permalink) Old 06-07-2011, 07:46 PM
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You sure you didn't over heat them before the break in or bed in procedure?
Once they are glazed rotors almost need to be turned to get new bite.

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post #3 of 10 (permalink) Old 06-07-2011, 07:49 PM Thread Starter
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Yeah I def. didn't over heat them before the bed-in. I immediately started the process, didn't touch the brakes before then. I might have done a few more stops than they recommended though..

They are brand new rotors too.

But when they do bite (@ 50% pedal) they bite like a mofo.
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post #4 of 10 (permalink) Old 06-07-2011, 08:25 PM
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Thats wierd, you used brake cleaner to wipe the oily coating off the new rotors?
Other than idk what to tell you, if it just showed up vs the stockers you know what the problem is. There couldn't be any aifr in the system by any chance?

Mods: ZZP stage 3, 2.9 pulley, prefab pcm, 60lbers, AEM gauges, KandN CAI, SPEC stage 3+, ZZP S3 heat exchanger
ZZP long tube header, Strut bar, ZZP rear mount, Progress rear sway bar, Redline Tuning hood struts freshly installed.
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post #5 of 10 (permalink) Old 06-07-2011, 08:30 PM Thread Starter
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Originally Posted by recaro86 View Post
Thats wierd, you used brake cleaner to wipe the oily coating off the new rotors?
Other than idk what to tell you, if it just showed up vs the stockers you know what the problem is. There couldn't be any aifr in the system by any chance?
Yep cleaned the rotors and made sure they were dry and clean. The system probably needs to be bled, but I doubt there's air, the systems been closed the whole time.
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post #6 of 10 (permalink) Old 06-07-2011, 08:33 PM
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Yep cleaned the rotors and made sure they were dry and clean. The system probably needs to be bled, but I doubt there's air, the systems been closed the whole time.
check the fluid level in the reservoir?

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post #7 of 10 (permalink) Old 06-07-2011, 08:40 PM Thread Starter
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check the fluid level in the reservoir?
Fluids good. I bled the clutch when I installed my trans and clutch but I've never flushed the brakes since I've owned it. I guess I ought to.
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post #8 of 10 (permalink) Old 06-07-2011, 08:45 PM
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Have stoptech premium blanks and hps pads I did myself and no issues, good bite and no fade. Your symptoms don't sound like a functioning as intended system. What's the back pressure like on the pedal. You said max bite happens at about 50%, does the pedal go soft after that? If so, I'd say you've got air in the system.

my 2 cents

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post #9 of 10 (permalink) Old 06-07-2011, 08:47 PM Thread Starter
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The pedal feels fine after 50%, the pads just don't bite as hard. The pedal feel is perfect though. I'll give it a shot tomorrow after the brakes have cooled off like the procedure recommends.

Also, can I flush the brakes without rebleeding the clutch?
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post #10 of 10 (permalink) Old 06-07-2011, 09:01 PM
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The pedal feels fine after 50%, the pads just don't bite as hard. The pedal feel is perfect though. I'll give it a shot tomorrow after the brakes have cooled off like the procedure recommends.

Also, can I flush the brakes without rebleeding the clutch?
try this thread.

https://www.redlineforums.com/forums/...ake-fluid.html

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