From what I understand, all that an adjustable fuel pressure regulator does is send the injectors more fuel during the time that they're open. If I'm burning my own chips, couldn't I just increase the injector pulse width and negate the need for an adjustable fuel pressure regulator?

 

yeah, it's the set it and forget it method.
Just figure out the lb-hr you need for you motor and adjust your fuel pressure so that the injectors don't opperate above 80% duty cycle, 90% with the peak and holds. Same with the timing. Set your base timing between 0 and 10, then use the chip for everything else.

 

Well, I've got a mildly modified L98, so the stock 22lb injectors will probably be fine for me. Where can I obtain the operating limits for the fuel injectors? Also, at what fuel rail psi does the fuel pump start to over-work itself?

 

I think most of the good injector info is hidden at the CIA.
It will vary, but the syclone injectors have been tested to 120 PSI and were linear up until that. I doubt you'll hit the max operating pressure of the injector before the pump drops out.

The pressure vs capacity values also cary by pump. Walbros seem to have a good rep and are often used in trubo applications which require a higher max pressure vs capacity then N/A applications.

 

hahahahaha!

I turned my fuel pressure up because I maxed out my VE tables. Turning the fuel pressure up makes things rich, or course. I then had some room to turn the VE tables back down a bit.