Quote:
Originally Posted by Mike_in OH
. . . The tires felt very grippy for the first 5-6 laps and then started getting skiddish; the rear left felt weird at high speed turns--almost soft--making me feel a little spooked about how far to take certain turns . . .
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I assume you mean the left rear felt weird in right hand turns? Do you mean the car felt loose (oversteer)?
I don't know about the F1s specifically, but with both my PS2s and NT01s they start to become very greasy at hot pressures much above 40, and that tends to happen faster in the rear tires, leading to oversteer. Since you are noting the problem after a few hot laps, I suspect that this is more likely the culprit, rather than the alignment specs.
I used to start with cold pressures similar to yours, but based on advice I received from a Porsche Cup racer, I now start off with much lower pressures , especially in the rear (like 28-29 R and 30-31 F), so I don't feel like I'm skating on ice at the end of a session.