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Suspension | Chassis | Brakes -- Sponsored by 949 Racing Relating to suspension, chassis, and brakes. Sponsored by 949 Racing. |
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09-10-2019, 04:51 PM | #1 |
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Brakes(?) squeaking when hot but not applied
2017 PP with 8,000 miles on current stock pads and rotors. Fourth time at the track on current brakes, sessions 3&4 I noticed a speed dependent high pitched intermittent squeaking after a few laps returning to the paddock when the brakes were NOT being applied. (Hadn't noticed on previous track days.) Quieter and a little higher pitched than normal brake application squeaking. Rotors ~280-300F. Noise is gone after cooling and never present for DD.
Possible slight brake drag/rubbing from heat expansion? Local shop says pretty normal and no issue as long as temps even and not present for DD. Anyone else experience this? |
12-08-2019, 05:11 PM | #2 |
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Rotors wraped?
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12-08-2019, 05:51 PM | #3 |
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Rotors don't warp.
Others have noted the pp brembos are noisy. Part of the joys of brembos
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12-08-2019, 06:51 PM | #4 | |
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Quote:
Season is over out here, will see if it's back in the Spring. Just odd I didn't hear it last season but I did this year (both years had basically new brakes: first season new car/brakes, second season new brakes because Subaru replace them due to pulsing). |
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12-09-2019, 10:36 AM | #5 |
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Get better pads and fluid before next track day
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12-09-2019, 10:39 AM | #6 |
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12-09-2019, 11:07 AM | #7 |
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I just installed Porterfiled R4S pads front and rear on my PP BRZ my initial impressions are good, they have a good bite when cold and warm. they are advertised to not squeak and have little dust.
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12-09-2019, 10:06 PM | #8 |
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there are a lot of good ones I’m using powerstop Track Day pads and great on the street and great on the track for HPDE 20-30 minute stints. Quiet also. I’ve seen a lot of combo pads that were very loud. I have 12000 miles on em and. Several track days. Replacing rotors tomorrow and will see how the pads look. I bought a new set in case they’re getting down there
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