Fuel Lines Feed/Return

[Shocker]

Stupid question, but basically I'm re doing my fuel lines, converting everything to hard or steel braided.

About 4 months ago I started and stopped. The time has come now to do my lines tonight to get ready for a start up, and I forgot to mark which one was the feed...

So basically if anyone with an S-chassis can check if the feed line (the one with the fuel filter) is closest to the frame rail I'd appreciate it.

I have pictures of this, but my main computer is down. I've searched TONS of online pics and threads for the last 2 hours with no avail. So I'm giving up basically lol. Oh an I really DON'T want to prime my fuel system to test this..

[USMCgetsome]

fuel filter line is the feed it goes to the back of the rail not the one going to the fuel pressure regulator. Btw you've been around here too long not to know this. lol

[gawdzilla]

i think he removed the fuel filter completely so you cannot really tell. i'd try outside of this subforum... might get some more views

[Shocker]

i think he removed the fuel filter completely so you cannot really tell. i'd try outside of this subforum... might get some more views

Exactly what i meant. Both lines now have flared fitting attachments on them and look identical.

I'm pretty sure its the line closest to the frame rail thats feed.... I guess I'm going to have to test it. I cannot find a clear picture to save my life.

I might have good news in a few days.. I shall see.

[Shocker]

Figured I'd follow up to this. I took a guess on a whim. I figured it was 50/50 chance. Turns out the feed line on an s-13 is closest to the frame rail.

Car fired up last night I idled her for about 20-25 min, I've got a few bugs to work out hopefully tonight, change the oil, and a tune in a week or two.. I'll update if all goes well.

[gawdzilla]

Figured I'd follow up to this. I took a guess on a whim. I figured it was 50/50 chance. Turns out the feed line on an s-13 is closest to the frame rail.

Car fired up last night I idled her for about 20-25 min, I've got a few bugs to work out hopefully tonight, change the oil, and a tune in a week or two.. I'll update if all goes well.

nice, good to hear you're back again. looking fwd to the update

[Shocker]

nice, good to hear you're back again. looking fwd to the update

thanks Gawd. I'll be sure to update. I shall see how it goes.

[Kansei240sx]

Turn the car on with a hose attached to each going into a bucket, and see which one has fuel coming out of it.

[mattleegee]

fuel filter line is the feed it goes to the back of the rail not the one going to the fuel pressure regulator. Btw you've been around here too long not to know this. lol

damn i must have messed up

i got the line from the fuel filter going into my fuel pressure gauge and then into the FPR

did i really mess that one up?which side would you hook the fuel pressure reader to?

[mattleegee]

it started.... wow, rb25 is alive!

[Shocker]

it started.... wow, rb25 is alive!

doesnt it just feel great?

[mattleegee]

^yeah one step closer!now i just got to figure out why it gargles and bogs down when i revv

[Shocker]

^yeah one step closer!now i just got to figure out why it gargles and bogs down when i revv

get a nismo FPR set 43psi vac off.