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Old 08-22-2013, 11:15 PM   #106 (permalink)
gone7
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Join Date: Apr 2012
Posts: 98

Lincoln #4 - '93 Lincoln Town Car Executive
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Quote:
Originally Posted by RedDevil View Post
There's no way in the world that adding 6 PSI is going to make the difference between easily spinning wheels and not. The rubber is the same (it does not turn into plastic), the power and weight of the car is the same; just the contact patch size is slightly smaller.
Friction has a direct relationship with the force (weight) applied, not with the size of the contact patch, unless that is covered by some gelly fluid or so; and even then, higher pressure will probably help grip, not hurt it.

Road surface otoh can make a big difference of course, if he let it roll through some grease no doubt the wheels will spin.

I found I got better grip with higher pressure, but the troll either did not read that or chose to ignore it. Ah well. Can't have a site like this and expect none of such come around.
You must be right. That's why dragsters use such high pressure in their tires.