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Air Pressure at the Track
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| 04-15-2013, 01:46 PM | #1 |
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Air Pressure at the Track
Just curious, what kind of air pressure are you running at the track?
Please state tire size, tire make/model, air pressure, and whether that measurement is taken while the tire is hot or cold. Include outside temp if you like. Thanks! |
| 04-15-2013, 02:04 PM | #2 |
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You're opening a whole new can of worms...Tire pressure is like ssholes, everyone's got their own favorite.
I shoot for 36psi "hot" as measured in paddocks immediately after 1 cool-down lap. Should translate to ~37-38psi true hot. Nitto NT-01 245/40/18F 275/35/18R. (* My typical interpretation of a "cool-down" lap involves driving a lap without engaging the brakes but still corner at max speed through turns)
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| 04-15-2013, 02:29 PM | #3 | |
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Quote:
Your particular pressure is going to vary based on the type of tires you use, your driving style, and your desired car balance (you can tweak the balance a bit by running slightly higher front/rear pressure). |
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| 04-17-2013, 01:57 PM | #4 |
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I target about 40psi hot. Yokohama Neova AD08, 255/35/18 all around.
For autox, I stick with 45psi hot. Same tires.
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| 05-16-2013, 03:43 PM | #5 |
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32 cold and 37 hot is my goal.
auto-x pressures are totally different than road racing.
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| 05-23-2013, 10:02 PM | #7 |
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Depends on the weather. I have Michelin Pilot Super Sports on my 2011 328 wagon. For 2 - 3 mile track event, in cold rain, 34 all around. With bright sun, 32 all around. Those are cold readings.
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| 05-28-2013, 12:31 PM | #8 | |
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Quote:
That said, COLD readings are worthless. Any pressure you measure as a reference needs to be hot, the sooner after the car pits, the better. Hot readings are the only way to accurately know what the tire is doing when on track.  |
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