Question: How come my NAS110 feels like it has more torque than my NASD90's? - Defender Source
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  #1  
Old January 25th, 2013, 01:31 PM
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Question Question: How come my NAS110 feels like it has more torque than my NASD90's?

This is something I haven't fully understood yet although I'm pretty sure it has to do with gearing in the transfercase or salisbury diffs (I think) When I'm driving the 110, I always feel like it has way more torque even though its a lot heavier (I still have the original LT77 with the funky reverse gear left of 1st gear) especially on first and throughout the powerband. I feel like I have more on my 94 D90 (compared to 97D90) because its stick and slightly modified even though it had a lot of stuff in it weighing it down (R380). My 97 D90 is the worst, zf tranny feels very slow since I have no control over shifting points. Does this sound about right to you guys? I know the motors are pretty much the same as well as the fuel mapping (except of course on the 97)
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  #2  
Old January 25th, 2013, 01:34 PM
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I believe the NAS110s have a 1.4 high range. 90s have 1.2. It can also depend on the age of the engines as they drastically lose power as the POS timing chains stretch and the cams wear out.
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Old January 25th, 2013, 01:37 PM
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Quote:
Originally Posted by Red90 View Post
I believe the NAS110s have a 1.4 high range. 90s have 1.2. It can also depend on the age of the engines as they drastically lose power as the POS timing chains stretch and the cams wear out.
Well I know both are running good (D90 isnt running at all at the moment) only 80K miles on the 110 but when my D90 did run it was also good due to my putting in a new motor only years before. But I always felt the 110 had more torque than the D90, kinda always surprised me. I never new what the t-case ratio was in the 110. It's bone stock.
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Old January 25th, 2013, 02:23 PM
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My 90 ST, runs very well, low miles and 4.11 gears, 35's and electric fans, it is fast. Driving my old 97 SW with stock gears, was not nearly as quick. The two trucks were very different.
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Old January 25th, 2013, 03:15 PM
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1.4 case makes it feel faster.
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Old January 26th, 2013, 12:25 PM
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You should try one with a 1.6:1.... it'll pull the side of a house down... but only manage about 60mph with the valves bouncing!
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Old January 26th, 2013, 12:57 PM
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Fascinating. Now I know. Thanks!
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Old January 26th, 2013, 01:46 PM
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Charles Galpin
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You can also do the (simple) calculations to compare the final ratios and see what things like your RPMs would be if you changed the transfer case gearing and decide if the increase in low speed performance isn't outweighed by limited top speed (or excessively high RPMs at highway speed).
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