Ford fuel injector Q

Exgmguy

Exgmguy

Club Member
Are the newer Ford fuel systems (2004) rated at 39 psi like the Fox stuff, or 43.5 psi like GM stuff? I am trying to figure out how much a set of "pink" 22lb injectors are rated at.
I'm looking to replace the 22lb Delphi "ball and disc" style injectors in my 1993 LT1 with a set of 2004 Mustang GT "pintle style" injectors.
 
Do you have acess to programming software ? Why are you replacing the injectors ? If they are clogged you can send them out for cleaning.

Sean


Exgmguy said:
Are the newer Ford fuel systems (2004) rated at 39 psi like the Fox stuff, or 43.5 psi like GM stuff? I am trying to figure out how much a set of "pink" 22lb injectors are rated at.
I'm looking to replace the 22lb Delphi "ball and disc" style injectors in my 1993 LT1 with a set of 2004 Mustang GT "pintle style" injectors.
Click to expand...
 
I have a Madz28.com chip. I think he reprograms them for $50 or something. My stock injectors work fine, but I installed a dry Zex kit and I read that stock GM injectors do not like elevated fuel pressure. I guess most guys switch over to Ford injectors. The pintle design does not lock up at 80 psi.
 
Exgmguy said:
Are the newer Ford fuel systems (2004) rated at 39 psi like the Fox stuff, or 43.5 psi like GM stuff? I am trying to figure out how much a set of "pink" 22lb injectors are rated at.
I'm looking to replace the 22lb Delphi "ball and disc" style injectors in my 1993 LT1 with a set of 2004 Mustang GT "pintle style" injectors.
Click to expand...

Rob,
Aren't the newer Ford injectors pencil style?
And about 3mm shorter than your stock injector?
Kevin
 
run ls1 injectors. At 45 psi vs 60 psi they will be close in flow rating and they drop right in. Plus becuase so many people on ls1tech upgrade their injectors they should be a snap to find.

Sean


Exgmguy said:
I have a Madz28.com chip. I think he reprograms them for $50 or something. My stock injectors work fine, but I installed a dry Zex kit and I read that stock GM injectors do not like elevated fuel pressure. I guess most guys switch over to Ford injectors. The pintle design does not lock up at 80 psi.
Click to expand...
 
Ls1's run 60 psi of fuel pressure? The're injectors are 26 or 28#'s right? Is that rated at 58 psi? If so, they would be right in my ballpark running at 43.5 psi. I have read conflicting information about injector flow ratings.
I have read that all injectors are rated at 3 bar, although LS1 injectors run at 58 psi, they are rated at 43.5 psi. I have also read just the opposite.

LS1 injectors don't use that disc design like LT1's?
 
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