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Old 07-15-2018, 04:57 PM   #33 (permalink)
hat_man
Master EcoModder
 
Join Date: May 2010
Location: Illinois
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Oh Deer - '03 Ford Ranger XL
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@ JRMichler... I'm assuming that I can do the same to figure my rpm's at 55 mph in 4th gear for each rear end then?

(Revs per mile) X (rear gear) X (4th gear) X (scaled speed)

That would give me 723 x (3.27 or 3.45) x 1 x (55/60) = rpm's

If that is correct, then this is what I come up with for 4th gear.....

3.27 rear end = 2151 rpm / 55 mph

3.45 rear end = 2270 rpm / 55 mph
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