I have a stock n14 red top celect plus 500 hp and 1650 torque. 9 speed 390 rears.
can i upgrade via ecm tune to 625hp and 1850 torque without changing any parts?
diesel doc in effingham il told me not to worry because the cpl# allows it.
I believe my cpl number is 239?
I appreciate your answer
Question for n14 tune to 625hp
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Rasim, Nov 22, 2021.
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Or should i tune to 525hp and 1850 torque?
500hp is a lot but i believe because of the 390 rears and 9 speed i do not feel it that much.
any suggestions? -
i don't think there was a 625 1850 factory tune available for the n14 do you could probably get there with a non factory tune. i think 525hp 1850tq was the high end for the n14 do you have a 1850tq transmission/clutch?
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Metalhead5052 Thanks this.
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525/1850 is the highest factory tune. Anything above that would be aftermarket.
Your clutch and tranny should be fine for 1850tq, but at 2050 I think you will start getting issues.
Even after getting the 1850 be ready for at least new turbo, because your old one won't last long, unless it was recently changed -
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Absolutely do not go over 525/1850 tune unless you have spare blocks.. look up n14 block fretting. Majority of high hp tunes the blocks will crack .
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