Can one of you guys please do me a favor? I've hooked my ATI FMU two different ways and it doesn't seem to make over 50psi fuel pressure even at 6+psi of boost. Can you guys snap a pic of what lines go where for the FMU and where in the fuel rail lines it hooks up. I need to fix this once and for all before New England dragways Super Chevy show (I'm racing finally). Thanks in advance,

 

you did put the inline pump in right?

you aren't part of the: "I have a 255 lph in tank pump so I don't gotta use no inline pump" gang are you?

make sure the boost reference line used for the FMU does not "T" from anything else's line. Nothing else except maybe the fuel pressure regulator itself (in a pinch) should be on the vacuum/boost referrence line for the FMU, N-O-T-H-I-N-G!

anyhow here is a pic:

 

B4C, thanks for the info. No I'm part of the "po **** gang",had to use ATI's inline pump and stock pump..hehe. I have to check where the fmu T's into. I know I T'd into a line but forgot where now. I do remember reading somewhere not to T into anything because of a false read for the FMU. How would I know if I hooked the inline pump up incorrectly?

 

hmm that is a good question, I cant remember which end of the pump is which