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In reference to racing with radial tires, is it actually better to lower psi down to 19 or 20 psi OR should I just leave the pressure alone at 32-34 psi, whatever it's currently at. The majority have said to lower it, but a couple of senior members on this forum (can't remember who) said that more traction would be lost if I lowered the psi in my radial tires....what do you guys think? [IMG]i/expressions/face-icon-small-cool.gif[/IMG]

 
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It would make sense to me to lower the presure....... my psi is @ 45........I'd drop it to 35.........
whateve[IMG]i/expressions/face-icon-small-wink.gif[/IMG][IMG]i/expressions/face-icon-small-wink.gif[/IMG][IMG]i/expressions/face-icon-small-wink.gif[/IMG]

 
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Man you guys get into this racing stuff a little to hard core for me....

 
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lowering the pressure will allow more of the tire to touch the road which allows more power to the road

 
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a senior mem here said a while ago that lowering the psi would make the radial tire "cup" or something along those lines which would actually lead to less tire in contact with the pavement. something like that but plz need advice [IMG]i/expressions/face-icon-small-cool.gif[/IMG]

 
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When you lower the pressure, more of the edge might be touching, but the tread arches and the middle of it comes up. If you over inflate, the tire balloons so that the middle becomes the only par touching and if you have proper pressure, you have no arches or ballooning, the the tread is making proper contact with the road

 
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For road racing I'm not positive for dragging you definitely lower tire presure

 
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hey carbon who does those signatures again?

 
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For racing 32-34 PSI is best.. Why.. best controll, most sidewall stailibity most rubber on the pavement. For Straighline dragging though it's different because when pulling out the tire flattend iteself out and you get more rubber to the road.. but in turns you you would have no grip and would risk ripping the rubber from the rim....

I was a tire installer for 2 years..not pretty to see what happens with underinflated tired on the highway through a turn [IMG]i/expressions/face-icon-small-smile.gif[/IMG]..Pop goes the tire.. flip goes the vehicle..

Cheers
Mohawk

 
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netcbc : fraga

Jon: this IS for racing right? Not for standard road driving???

 
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Ummm... Radials shouldn't be dropped, it is true about the cupping of tire, which right out of the hole will give you better traction when they flatten, but street racing and roadracing keep it the way the factory says.