I'm redoing all of the fuel lines with this project. I bought steel brake lines from NAPA for about $4 a piece following pelican's article. I might end up bending the lines with a tube bender instead of using a 90deg fitting.

These are the sizes i've gathered so far:

Supply: 3/8"
Return: 5/16"

Fuel Rail: 5/16"
Fuel pressure regulator: 5/16"
Fuel filter: 3/8"

I'd like to put an inline fuel pressure gauge near the fuel rail using this stuff:

1/8" fuel gauge 0-60psi
1/8" in line 3/8" adapter

How did you guys put the 3/8" inline on the fuel rail side? With a 5/16" -> 3/8" adapter? Or did you end up placing the inline gauge on the 3/8" side next to the fuel filter?

my gauge is inside the engine compartment (fuel pump and filter up front)...used a "t" similar to that fitting and plumbed in before the pressure regulator........

QUOTE (Mueller @ Feb 7 2006, 03:55 PM)

my gauge is inside the engine compartment (fuel pump and filter up front)...used a "t" similar to that fitting and plumbed in before the pressure regulator........

A 3/8 tee or 5/16 tee?

QUOTE (yarin @ Feb 7 2006, 04:59 PM)

QUOTE (Mueller @ Feb 7 2006, 03:55 PM) my gauge is inside the engine compartment (fuel pump and filter up front)...used a "t" similar to that fitting and plumbed in before the pressure regulator........ A 3/8 tee or 5/16 tee?

i'm pretty sure my fuel line is 8mm...so 5/16"

Any idea where I can get that adapter in 8mm / 5/16" ?

It doesn't seem to exist anywhere.