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Old 07-13-2018, 08:00 PM   #30 (permalink)
hat_man
Master EcoModder
 
Join Date: May 2010
Location: Illinois
Posts: 475

Oh Deer - '03 Ford Ranger XL
90 day: 33.97 mpg (US)
Thanks: 55
Thanked 91 Times in 72 Posts
Ok. So after some math homework I come up with this......

3.27 rear end = 2016 rpm / 65 mph

3.45 rear end = 2127 rpm / 65 mph

Now, if I only had a BSFC for my little Ranger I could decide if the 3.27 is pulling me out of the optimal fuel range.

Thanks again for teaching me something new.
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