Fuel Press. Settings

[ninety15.0]

Hey so i finally go my fuel pressure guage situation figured out,and now i need to test it. I think that the fuel press is supposed to be around 36-38psi with the vac off right? now what exactly does that mean? do i pull the vac line out of the regulator or is it another vac line? i dont have a AFPR, mods in sig, and any help or info on the best way to test this would be awesome! thanks
-nick

 

[88stangmangt]

stock is 35-40 i believe.

 

[90mustangGT]

Yup, the vac off means the vaccume line to the regulator is removed. I have mine set to about 37 psi. However, the AFPR is a tuning tool, so maby you should experement with different settings.

 

[ninety15.0]

Awesome thats what i thought....now when i test it there isnt going to be a load on the engine, so if the pressure is any lower than 35ish then i might have some problems. Also how would i test it with a load on the engine? the guage is under the hood which makes it a PITA to look at it while driving! haha. thanks for the help guys!

 

[ninety15.0]

Anyone?