What did you do to your V today?
09-08-2016, 08:39 AM
#869
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Saturday: Thoroughly corded the inner shoulders of my track tires, cutting short a weekend @ PittRace.
I just had the car aligned a few days prior to the event, running the same sort of alignment numbers I always run, so I was quite shocked to see the abnormal tire wear. I didn't realize anything was wrong until I went to rotate the tires front to rear after my Saturday sessions.
Sunday and Monday nights I pulled the driver front (Sunday) and passenger front (Monday) wheels off to clean up brake fluid that had leaked out of the bleeders and coated the barrel of the wheels, gotten onto the faces of the wheels, and a bit down the sides of the car. Not sure WTF that was all about - I haven't had a bleeder leak on any of my 3 cars in all my years of doing these sorts of events and the associated brake bleedings, so to have bleeders leak on both front calipers is weird. And the passenger side was fine Sunday, but then leaked Monday?!
Wednesday replaced a leaky exhaust gasket (header to cat-pipe) that developed at the track Saturday. I need to get rid of that 2-bolt flange, this is the 3rd or 4th time I've had to replace that gasket.
I just had the car aligned a few days prior to the event, running the same sort of alignment numbers I always run, so I was quite shocked to see the abnormal tire wear. I didn't realize anything was wrong until I went to rotate the tires front to rear after my Saturday sessions.
Sunday and Monday nights I pulled the driver front (Sunday) and passenger front (Monday) wheels off to clean up brake fluid that had leaked out of the bleeders and coated the barrel of the wheels, gotten onto the faces of the wheels, and a bit down the sides of the car. Not sure WTF that was all about - I haven't had a bleeder leak on any of my 3 cars in all my years of doing these sorts of events and the associated brake bleedings, so to have bleeders leak on both front calipers is weird. And the passenger side was fine Sunday, but then leaked Monday?!
Wednesday replaced a leaky exhaust gasket (header to cat-pipe) that developed at the track Saturday. I need to get rid of that 2-bolt flange, this is the 3rd or 4th time I've had to replace that gasket.
09-08-2016, 09:22 AM
#870
That abnormal looks somewhat consistent across the two tires. Is that unexpected to you? Would be to me but I've never run road course slicks before.
And the brake fluid everywhere. Seems those calipers likely got real hot.
I wonder if related? Let's say your lug nuts weren't all the way on or your lugs stretched/deformed, allowing the wheel to bow in. That could cause inside wear as well as push the rotor off-center in the caliper, resulting in a "brakes applied" situation causing extra heat in the caliper. Wheel bearings come to mind also. I'm sure by the time I write this you'll have diagnosed it..just thinking out loud on an interesting problem I haven't never had...for obvious reasons. And of course it isn't likely this would happen to both sides at once!
Though in my broke days I have had plenty of misaligned vehicles chewing up the inside of the tires.
And the brake fluid everywhere. Seems those calipers likely got real hot.
I wonder if related? Let's say your lug nuts weren't all the way on or your lugs stretched/deformed, allowing the wheel to bow in. That could cause inside wear as well as push the rotor off-center in the caliper, resulting in a "brakes applied" situation causing extra heat in the caliper. Wheel bearings come to mind also. I'm sure by the time I write this you'll have diagnosed it..just thinking out loud on an interesting problem I haven't never had...for obvious reasons. And of course it isn't likely this would happen to both sides at once!
Though in my broke days I have had plenty of misaligned vehicles chewing up the inside of the tires.
That's a bummer for sure. 
09-09-2016, 08:02 AM
#875
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That was my thinking, too. I found the issue Saturday evening, so that meant Sunday was a bust. Since I was just hanging out with my buddy Sunday, I decided to string the car to check the toe myself before I packed up all my stuff to head home. I expected to find they had given me toe out, and that was what had killed the tires, but I found a little bit of toe in. That's what I asked for, and is what I normally run, hence my confusion as to why the accelerated wear happened like that. 
09-09-2016, 10:51 PM
#878
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I suppose the tire pressures could be at play. I have to start with loooow tire pressures so that I end up where I want them to be hot. But this event wasn't as hot, so the tire pressures weren't getting up quite as high as they normally do on warmer days.
This was the 3rd day on these tires, which are used take-offs. I was figuring they would at least make it through the weekend. Alas, they did not...
This was the 3rd day on these tires, which are used take-offs. I was figuring they would at least make it through the weekend. Alas, they did not...
