ecm tuning?

Do not think dealers will touch this, when they change file they have to use Cat system to change interlock. This means Cat will see what they are doing. It can be done, need non cat program to change interlock
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Curious, what will the 7CZ ecm get you, over the 6NZ?

 

The 600 hp file in a c15 gets you alot more torque at lower rpm and is good for 600 hp to the wheels with the right numbers. You really have to watch the pyro and the rad temps, it will run hot.

 

I got 723hp to the ground with 58 injectors, 800 marine cam and 600 turbo. That was with 600 hp 7cz file. Customer works it every day at 63000kg. Same set up but with 59 injectors put out 763hp to the ground. 950 may be right since you have the wastegate pinch, is your boost around 35?, what fuel numbers and file do you have in it. Is it a 550 hp now?

 

More fuel, more soot.

 

Id expect over 800 with the 59 injectors. Do you not think that it was a little low expecially since it had the 600 turbo? What version of the 7CZ do you use? Is it true the earlier was are suppose to be good for more fuel cuz of smaller injectors or something with them then the newer ones?

 

Early 7CZ makes about 20 hp difference to the wheels with no real fuel flow change, so timing must be better in that file.

Wheel hp is real hp, it takes more to get higher readings, 800hp at the wheels is 920 hp at the flywheel with estimated 15% drivetrain loss. That loss can be higher with different tires, diff ratios, number of joints in the drive shafts, and also 20 hp from the fan when engaged.

The 600 hp turbo has a bigger wheel, less back pressure but still only makes 35 to 40 psi safely.