Fuel pumps will flow more max lbs/hr at lower pressure.

 

Hmm I'm curious what 60s would support then with a base pressure of 43psi

 

What would you adjust in HP Tuners, other than "Injector Flow Rate vs. KPA VAC" ?

 

That should be all you have to adjust. With boost ref pressure reg, it would be a flat 60 for 60lbs/hr injectors rated at 43psi.

 

Thanks. I am going to see if it helps a little. I have been running a stock pump for quite awhile now, accumulating funds to sort it out. I should probably just put a wood block under my gas pedal instead!

 

Thanks for the help guys I think I found some information like your talking about kb... It calculates ve and fuel pressures an it told me like 43.5 @ 9 psi..?.?.?. I'm not sure if that's idle or after boost like you were saying... I have 2 fuel pumps in my tank a factory and a wal 255. I'm only using the stock one right now. I also have the vac line hooked up to the fpr.

 

What?^ 43.5 at 9psi? makes no sense

 

43.5 psi fuel rail pressure ( idle) and running just 9 psi of boost

 

Fuel pressure is adjusted with the key on, engine not running, when the pump runs for a couple of seconds. 43.5 psi at idle might be 47 or something actual fuel pressure.

 

And that sounds like what your injectors are probably rated at, 43.5lbs. Also, i doubt you have 9lbs of boost at idle