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Originally Posted by blsfrs
I could be chasing the wrong problem. This is my first set of 200tw tires (Federal 595 rs, 245 45 17). The dealer said run 32 psi which appears too low as the middle of the tires show much less wear. Last couple of events, I ran 38 psi and the wear evened out but I still had wear on the inside.
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34psi hot is what I aim for at the track. I wouldn’t try to adjust pressures to get even wear across the tread, radials don’t really work like that. Old rules based on old bias-ply tires…. A lot of tires will wear down the outsides quicker while maintaining some tread depth in the middle.
In my experience there is a broad range of hot pressures that will yield similar lap times at the track. 34psi hot is what I’d aim for, 36 fine as well and conservative. 38 psi definitely a bit on the high side. Some feel like lower is always better but I disagree…
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I'm debating with my inner voices about trying to get another event out of these tires, going with something like Conti extremecontact force or something else. I run HPDE so getting every 0.001 out of the car is not too impt but I would like to reduce the cost of consumables.
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Hankook RS4 last a long time, another option to consider.
Surprised you are seeing more *inside* wear at the track. Even at -3+ camber the fronts should wear outside tread more. For me wear is more dominated by fronts than rears, then I rotate between events.