Quote:
Originally Posted by Shankenstein
Yeah. I've got the same tires, and they run pretty low pressure if you are targeting even temperatures/wear during autoX.
Generally, I start out at 32 psi front, 28 psi rear. That seems to *just* work them to the wear arrows. Depending on the course, I may go up or down 2 psi.
For smoother courses, you're not going to roll over the fronts as much... so I drop the front pressure to 30 or so. Cold days, I drop all 4 by a couple psi. Texas summer days, you can either raise pressures or spray them between runs.
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Thanks, are you setting when hot/cold/right before going out etc?
Interesting that you go up when hot, I would have thought the opposite. Down when cold makes sense to me as you want the rubber moving around searching for grip but I would have figured on hot days allowing the tires to expand unchecked would result in a loss of traction.
I definitely noticed having the rear lower by 2+ psi hooks it up and increases the natural understeer, that should have been my first clue that I was overall setting my pressures up too high, at this point I like the on-throttle rotation I get with even pressures front/rear. When I had lower rear pressures every once in awhile I would get in over my head and just have to give up a corner to terminal understeer of my own design, it's probably faster as you can get on the throttle earlier with more confidence but I'm not yet consistent enough in my driving to lean on it for improved times.
Definitely have some work to do on the nut behind the wheel before I can truly start blaming the car/tires/lack of camber.