where to set fuel press

[BadAndy]

I have a 5.0 stang with edle heads- cobra intake -headers- and stock cam, larger mass air and t-b, it also has 19lb-inj,s with a 255 intank pump-- what should i set my fuel press at???????/

thanks

 

[Bolt on 5.0]

try 35 psi, for improved power someone else might be able to help

 

[QDRHRSE]

35 PSI would be way too lean for that set up, especially with 19lb injectors- you need 24's. I would start at 38-40. Unfortunately, a wideband would be the only way to know for sure. Alot of it depends on the motor. You will have to experiment a bit.

 

[bill302]

remove the vacuum line from your adjustable fuel pressure regulator and set it at 40 psi and reinstall the vacuum line and you should be ok....

 

[amplifier28]

Sorry to hijack, but do you plug or pinch up the vacumm line that goes to the fuel pressure regulator when you adjust the fuel pressure on the regulator?

 

[bill302]

when i adjust i remove the vacuum line at the adj. fuel pressure regulator and plug the vacuum line with my finger or a small screw and adjust to 38-40 and then reinsert vacuum line....done.its easy for me because i have a fuel pressure guage permanetly mounted under my hood see pic...

 

[DMAN302]

start at 45 and work backwards with the SOTP meter and a stop watch..see where car performs best from 30-50 and go from there.

 

[amplifier28]

What is a "SOTP meter"?

 

[795.0pacecar]

Seat of the pants meter. When you play with the fuel pressure also keep an eye on the olor of your spark plugs.

 

[amplifier28]

Duh! Man, do I feel stupid