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Old 01-27-2012, 02:25 PM   #61 (permalink)
TheEnemy
The road not so traveled
 
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Join Date: Jan 2010
Location: New Mexico
Posts: 680

The Truck - '99 Nissan Frontier xe
90 day: 25.74 mpg (US)

The Ugly Duck - '84 Jeep CJ7 Rock crawler
Thanks: 18
Thanked 66 Times in 57 Posts
Using my Jeep as a comparison to those motors torque values because I know the gears on it.

Engine 230ftlbs at 1800rpm,
First gear 3.3:1
T-case (Low range) 2.6:1
Axle 3.54:1

Gives me 6,985 ftlbs to the axle shafts

*0.8 to account for drive line losses = 5588ftlbs

Now granted the only times I am anywhere near that torque rating is when pulling someone, or bound up in the rocks, or when I have entered it into the mud bogs which is <1% of the time

5th gear .75:1
Tcase (high range) 1:1
Axle 3.54:1

1600rpm at 75mph (at full throttle) est 210 ftlbs from the engine

=446ftlbs

At 75mph I'm making 210*1600/5252 = 64hp (yes its a cinderblock on wheels)

Converting to kwh for a 150mile 2 hour trip I would need about 100kwh. (only a couple times a year with this thing)

Its a good thing this is my weekend beater.