Originally Posted by MMZ_TimeLord
Here is a thread on
Determining maximum horsepower supported by fuel system.
I hope that makes sense. Basically if the tuner can alter the pulse width, then they can make the fuel ratio more rich. And nobody here should need larger injectors. If the tuner does not have the ability to alter the pulse width, then the easy way to get a richer ratio would be to pick a set of slightly larger injectors. Then the pulse width would increase the richness of the fuel ratio.
The injectors are only adjustable to 86-90% duty cycle then they go static. I was going to go bigger injectors BUT nobody seems to know for certain if the pump is up to the task. This problem has been floating around for quite some time and I feel it should have been resolved. I don't have the software for adjusting the injectors, plus that graph doesn't have how many lbs of fuel/hr or loss from restriction in the pipe path. You need to have the correct amount of pressure and the correct amount of flow, when under full load bigger injectors won't help if the fuel rail doesn't have enough fuel