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Seasoned...
Joined: Sat Oct 21st, 2017
Location: Near The Pointy End , USA
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Grimm Jeeper Gear Calculator
With some additional resources:
Manual Transmissions
Automatic Transmissions
And rather than re-post an entire discussion [ https://ford-rangers.com/forum52/1006.html ], this was pretty good information here using the above calculator and resources while trying to decide what gears to use. For a sports car, 3000-3250 RPM while in 5th gear and doing 70-75MPH would be expected but MPG on something with 33"-35" tires would be.. ehhhhh less than stellar.
Current gearing of 3.73 right now:
Future gearing of 4.88 right now:
Keep in mind also, my 93' is loaded with a 4.0L OHV, with the manual trans not the zippy 2.5L/2.3L 9mm like variant.. TQ numbers despite only the 27hp lower HP numbers of the 2.3L in comparison to the 4.0L. The 2.3L is 87 ft. lbs less than my 4.0L, more than noticeable in either direction of scale by the butt-dyno in my opinion but the lower the RPM can be, the better the MPG should be while still gaining a performance advantage via gearing.
At least that's my perception of how its supposed to work. Another graph I had before shows you by colored sections where performance drops off to, where you get better MPG, and then where MPG kinda goes out the window some and its all about [performance] gains bruh!! lol
- Stock Tire [215/75/14] vs. Current tire [285/70/17] listed as oversized MT @ 34"], 3.73 gearing | Standard Transmission |
https://tiresize.com/gear-ratio-calculator/
Just what you wanted huh? More controversy and debate to add to your informed decision making.. !! I like making a topic interesting from other perspectives and thoughts. lol
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