Hey guys,

Did a quick search, but I'm leaving for the Glen in a few hours so I don't have a lot of time...

What tire PSI should I run at the track? Stick with the standard PSI, or dial it up/down slightly?

Thanks!

 

It should be whatever pressure is indicated on the side wall of the tire in any situation. If you want better traction at the track, get a high performance tire.

 

down for better grip

 

You will notice the car will lag more with less air pressure in the tires though. Kinda like how when your bike tires are low or deflated a little its harder to pedal and get up to speed and keep that speed. If you have quattro, it shouldnt be a problem anyway.

 

What are the reccomend pressures for the tires (from the sidewall)?

Generally, Higer PSI will give you a little better speed at the expense of traction.

If your sliding around too much, then lower the pressure slightly.

I guess you will need to experiment, but probably the PSI you normally run will be fine. Mine state a max PSI of 44, i run about 40. I doubt you would notice much difference with any slight variation in tire pressure.

Any of you autocrossers / trackers care to chime in? What is your racing experience with tire presssure? More PSI for a fairly straight track, less PSI for a very curvy track?

 

Yeah, I'm running on 2 month-old Kumho Ecsta SPT (ultra high performance summer) and the sidewall says it has a maximum PSI of 50.

 

experiment is the word, if sliding for a short time increase the pressure if straight runs 1/4s then reduce the pressure (why) because the tyres heat up very quick which inflates them, remember hot tyres inflate ask the gassers/roders

 

Thanks for the info guys. I'm gonna top off the PSI to normal before I hit the road, and I'll increase/decrease based on what I'm feeling. It's supposed to rain the whole damn time, so I'm probably going to defer to better traction. Keep your fingers crossed for some sunshine

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