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Old 05-25-2008, 11:28 AM   #18 (permalink)
trikkonceptz
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Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
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If the underlying argument here is contact patch why not test it. Take YOUR tire down to 36 psi or whatever, lift the car, roll some water based paint over the tread and drop the car on some heavy duty paper. Then re-inflate to YOUR max psi and repeat, then measure. If the patches are the same, case closed right? This should even show weight distribution by how much of the treads are printed on the paper, to see which treads are making contact and how much.

Once that is laid to rest the next question would be side wall flexing. Now you guys keep talking about air and it varying pressure with heat. What about Nitrofill? Which has a higher balance of nitrogen than air and claims to stabilize the heat expansion in tires. Which is why aircraft and NASCAR use it.
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