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Old 03-09-2018, 08:40 AM   #26 (permalink)
davelobi
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Join Date: Feb 2013
Location: SE Michigan
Posts: 166

CRX - '91 Honda CRX HF
Last 3: 63.1 mpg (US)

the ugly one - '97 saturn SL just sl,not sl1 or 2
Team Saturn
90 day: 44.15 mpg (US)

Vibe - '07 Pontiac Vibe
Team Pontiac
90 day: 44.24 mpg (US)

Hoopdie - '05 Toyota Corolla CE
90 day: 42.58 mpg (US)
Thanks: 7
Thanked 36 Times in 19 Posts
Quote:
Originally Posted by CapriRacer View Post

But what does a difference in tread depth do? According to the tank track theory, nothing, but I don’t think that is 100% accurate – meaning the theory is wrong, but close.
Tread depth between a new and a used up tire defiantly makes some difference in both the outside diameter of the tire (unloaded or loaded) as well as the radius from axis to patch on the ground. Take the drawing and then add one half inch more rubber to the tire tread. This instantly adds one half inch to the radius and pi x radius squared to the circumference. With pressure and load constant, this new tire will roll further with each revolution than the identical tire with less rubber (smaller circumference). Tire patch is not affected.
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Get bored very quickly. Vibe, Saturn, and crv all long gone. Been a while but I'm back in the game, gunna see what I can do with this Corolla.
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