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More Power From NHC 250 in M939 Series Trucks With Allison Transmissions
Here read this starting at post 17. http://www.steelsoldiers.com/showthread.php?90372-NHC-250-Turbo-Conversion-in-M923/page2- R Racing
- Post #115
- Forum: 5-ton Mods and Hot Rodding
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More Power From NHC 250 in M939 Series Trucks With Allison Transmissions
I want to say it was 5 turns either in or out. If you find it please add it to this thread as I have 2 more trucks to tweeked lol.- R Racing
- Post #113
- Forum: 5-ton Mods and Hot Rodding
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More Power From NHC 250 in M939 Series Trucks With Allison Transmissions
Actually my m816 and m813 both have the screw under the center of the throttle shaft. There is like a bb cover that you can drill thru and use a screw to remove. I forgot how to adjust it. (It's on here on 1 of the threads) but it really woke up both of my trucks! !!- R Racing
- Post #112
- Forum: 5-ton Mods and Hot Rodding
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More Power From NHC 250 in M939 Series Trucks With Allison Transmissions
How is it acting now ?- R Racing
- Post #102
- Forum: 5-ton Mods and Hot Rodding