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Old 02-02-2012, 03:19 PM   #3
Keith Seymore
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Join Date: May 2009
Location: Motor City
Posts: 9,289
Re: 2:73 ratio in my new Blazer??

so - doing the math as above, for a 31-10.5x15 tire I show a rev/mile of 672.

plugging that in, I get:

1682 engine rpm at 55 mph
1835 engine rpm at 60 mph
1987 engine rpm at 65 mph
and
2140 engine rpm at 70 mph

You've probably got no business going faster than 70 in a K blazer anyway...

(lol)

K
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