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Old 03-18-2011, 07:17 PM   #35 (permalink)
Frank Lee
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Join Date: Jan 2008
Location: up north
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Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

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Quote:
Originally Posted by Varn View Post
I always figured that the size of the tire has nothing to do with tire patch size. It in my mind is a function of tire pressure. You have 500 pounds on a tire and there is 50 psi in the tire. you will have 10 sq inches of contact patch. a wide tire will have a wider patch and a narrow tire will have a longer patch but both have 10 sq inches.
Urban legend- it's not so. Yes contact patch area will vary with psi but not with that math.
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