Your tires with that size turn 745 times per mile (got that from Tire Rack's specification page for a tire of that size). So at 2000 RPM engine speed, the tires would be turning 487 rpm (2000/4.11), or 0.65 miles per minute (487/745). Mulltiply that by 60 min per hour and you get 39 miles per hour.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.