10-01-2020, 02:03 PM | #1 |
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removing melted rubber from the tire
I punished my MPSS a bit more than I wanted to yesterday at the track.
This caused the inevitable melting of the groove edges and the melted rubber gluing itself back on. I have enough tread left for at least one more summer of street driving and I would like to remove these melted bits to avoid vibrations and balance issues. What's a good method of removing them? Last edited by mr_lab_rat; 10-01-2020 at 04:50 PM.. |
10-01-2020, 02:50 PM | #2 | |
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10-01-2020, 03:09 PM | #3 |
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Burnouts. Also drive on the street for a while. They will scrub themselves off on on ramps and such.
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10-01-2020, 04:50 PM | #4 | |
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The rears will take care of themselves and if the fronts don't scrub I'll mount them in the back and light them up. Thanks. The track day was a blast. Small but technical track at Vancouver Island Motorsport Circuit. The MPSS held up reasonably well although I probably took 12000 miles of life from them in 120 track miles |
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10-01-2020, 05:22 PM | #5 | |
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10-01-2020, 07:54 PM | #6 |
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Yeah, that's what my tires looked like.
I was a bit disappointed by the PSS but when I thought about it a bit more then it made sense and maybe I expected too much. In the morning it was quite cold, around 15 celsius. I set them at 33psi cold and they were good. With each session I felt less and less grip and heard more and more squealing. I kept dropping pressures whenever they got over 40 I would take them down to 36 hot. Still I wished I had more grip but I think the problem was raising track temps - it got over 25 degrees by noon. And I started going faster as I learned the track. What hot pressures are you targeting? |
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10-02-2020, 07:05 AM | #8 | |
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Since you are so helpful I'm gonna ask another question. Brake vibration after the track day. Is it the marbles on my tires or did I damage my stock brakes? They never faded, the track is not hard on tires. My rotors got up to 300C (570F). Now when I brake lightly it's ok but when I brake harder they vibrate. My last track day I ran the same setup and actually got the brakes to fade since it was on more demanding track. But I haven't experienced the vibrations after that one. |
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10-02-2020, 07:42 AM | #9 |
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Which pads did you use? If the vibration is only on light braking, than it’s likely that the pads overheated and left an uneven pad deposit layer on the rotors.
I’ve had that before with Carbotech and Gloc pads. Leave the track pads in for a week or 2 of street driving. At ambient temps the pads will scrub the deposits off after some miles. |
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10-02-2020, 08:32 AM | #10 | |
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I'm gonna swap the front wheels to find out if it's tires or brakes and also take a look at the pads. |
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10-02-2020, 05:26 PM | #11 | |
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10-03-2020, 06:19 AM | #12 |
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Look at the rotor. If you see cloudy looking spots in some areas, than this may be the culprit. You could try using some sand paper to remove uneven pad deposits.
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10-03-2020, 09:23 PM | #13 | |
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Thanks again for helping a newb out. |
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