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Old 07-15-2013, 04:51 PM   #9
BRENT in 10-uh-C
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Join Date: May 2010
Location: Eastern Tennessee
Posts: 12,245
Default Re: 16" wheels on my '28?

Quote:
Originally Posted by saltman View Post
Using the tire specifications that Coker tire gives, going from a 6.00/16" (wheel) tire to a standard 21" (wheel) tire, would only improve the speed by about 6.5% Therefore, improvement at 40mph would only be stepped up to about 42.5mph. My initial calculations were way off because I did not consider the thickness of the tires. Regardless, I would still like for someone to agree or oppose this. Thanks Always... SALTMAN
Well I was calculating and typing while others were posting too and after the good suggestion of obtaining actual numbers on Firestone 600-16 and 450-21, there is actually about a 10.250% difference. In other words, 40mph now would equate to about 44mph with the 21", ...and 45 mph now would allow you to travel at nearly 50 mph at the same engine rpm.
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