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Street Tires at the Track

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Old Aug 10, 2007 | 03:17 PM
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Default Street Tires at the Track

What is a good PSI to run street tires at when you are at the track?? Or isnt it even work bothering with adjusting it since they are street tires??
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Old Aug 10, 2007 | 05:15 PM
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With street tires do not lower more than 5 or so pounds. If you lower too much the tires will actually cup and the middle of the tread will not give any traction. Personally I just leave my street tires alone. You could play with the pressure to find the best but I'd rather work on my launching technic. When I eventually get drag radials again then I will look for the best pressure.
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Old Aug 10, 2007 | 05:20 PM
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As mentioned above if you drop them too much they will cup and actually lose tread contact.
The best way to figure out a good pressure to start with is doing a short burnout (do not hold the brake, just drop the hammer and spin the tires) across a clean piece of concrete or asphalt (concrete is easier to read the patch). You want a nice clean even patch, so try and keep it straight.
Dark in the center and light on the sides = too much air
Light in the center and dark on the sides = not enough air

Street tires won't give as good traction as a stickier drag radial or slick, but if you learn how to launch on them, 2.0 60 foots can be done.
FYI, I run my 245/50/16 tires at 25-27 psi, and have gotten a 2.00 60 foot in good air on a stock converter with 3.23 gears 2000 Formula.

Derek
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Old Aug 11, 2007 | 10:23 AM
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yeah i owuldnt even bother with them. go get some et streets
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Old Aug 13, 2007 | 06:33 PM
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Originally Posted by Villain281H

Street tires won't give as good traction as a stickier drag radial or slick, but if you learn how to launch on them, 2.0 60 foots can be done.
FYI, I run my 245/50/16 tires at 25-27 psi, and have gotten a 2.00 60 foot in good air on a stock converter with 3.23 gears 2000 Formula.

Derek
I agree, I was able to hit 1.91/1.93/1.97 on street tires with a lid only.
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