Hey guys, I will be overhauling my fuel system this winter and will be replacing the OEM hard lines with a bigger stainless steel hard lines to support the CJ dual pump set-up and 5400cc injector set

I am looking to get 1/2" OD SS line for a feed line which is a -8 AN line

And a 3/8" OD SS return line, which is a -6 AN (possibly 2 for the evap system)

I will be eliminating clamps and using only AN fittings for my setup...

I need to know where I can get the Stainless Steel Hard lines in 1/2 and 3/8 size and how much do I need...

This is for a 95 FD

PS

What is the OEM OD size of the hard fuel lines?

Thanks...

 

http://www.aircraftspruce.com/catalo...lesstubing.php

 

I routed 6an braided stainless for my feed and return lines. Why not just do that? Bending the tubing is going to get old real quick...

 

For a car thats a is sometimes used as daily and sees regular track use i will need to have something reliable, and -8 is the size I will need to support the twin fuel pump flow and a single -6 return...Just running 2 SS flex lines which are much more bulky seems a bit unsafe...

Thanks for the link scathcart, do the pipes come in a coil when you ordered from them? As although its perfect, not much description on their site...

 

why dont you run 2 -6 feeds (1 from each pump to its own rail) and a single -6 return?

Summit has 3/8 stainless tubing for $45/20ft.

Most tubing comes in rolls.

Get some thin wire and bend it to where you want your lines to run then measure the length of wire to get an estimation of how much material you need. bending wire is hell of a lot easier than bending tube.

Make sure you buy the correct flaring tool and a tubing bender.

 

Precaution if 1 pump fails and CJ kit was designed for a single feed line with an internal Y-split for primary and secondary...helps the FPR with the fuel pulsation...

I have thought about it, then the overall cost came into play...2 filters and not sure how much room I will have in the OEM steel fuel line protective cover...

 

I've used -6 braided hose for feed and return on my street driven car since 2002 with no problems.

Jack

 

Do you really need this complex of a fuel system? What is your setup, E85?

 

The car will be used for Auto-X, Drifting, Track/Time Attack, Drag Events...

Because of the complex nature of events and requirements, while still being somewhat street driven from event to event, and making about 500-600whp or more

I know right now I am making ~430whp with modified OEM Fuel rails and Side feed injectors in stock metal lines with a single supra pump...but I know that I'm pushing the envelope with only temporary (Drag Type) launches, but once on track at full power and with all the fuel demand fluctuations, I will need to change things, because after this, im not going back...

 

For my 42r setup I'm running two intank pumps and ONE 6an feed and ONE 6an return line.

I'm running 20 psi STRAIGHT pump fuel with no problems!

6an will supply more fuel than you'll ever need. Routing it from the top of the fuel tank, along the chassis, and up the firewall was a breeze! I even used the factory plastic holders with the metal brackets to hold the lines! Even further, I reused the factory plastic cover that runs the length of the underside. LOOKS BEAUTIFUL! Functions even better!

 

Really? Do you drag your car or race it on the track at close to full boost 15-20psi?

And where did you get your plumbing from? How much did all this cost you?

Thanks...

 

Comes in a coil, yes.

 

I think the SS fuel lines make a lot of sense. They'll be very durable, and you won't have to screw with them again. I used aluminum. If I did it again, I'd go with SS. Haven't had any problems yet, but the SS is much stronger and corrosion resistant. As an added benefit, the resistance to flow of metal lines is slightly less than that of rubber lines.

As was mentioned before, be sure to get the correct flare tool. You need a 37 deg tool -- not the 45 deg one you see at most hardware stores.

 

Thanks... I did see alot of alluminum hard lines, but not much of SS hard lines...

 

The car has been driven very hard but no track time yet. I'm dialing it all in when I have the time. Also note, I haven't even done the fuel pump rewire!

I got all the fittings and stainless braided line directly from Summit Racing. Make sure what company you get your fittings you get the 6an line from. Anyone that has any experience doing a lot of fuel work will tell you that some don't mix and match too well...

 

bringing this back from the dead, now I am finally getting to doing this...so any recommendations as to where to get the material from, ie. SS tubing and AN fittings!!!

 

In my past restorations I've used Inline Tube and Classic Tube.
Just call them up, they have it in stock. You want to buy it by the 6' length sections, NOT coiled.

www.inlinetube.com
www.classictube.com

 

I'm concerned about hardlines with no flex in them. Look at the factory oil return lines on the stock twins. They have a flex section.

 

www.thesarx.com

 

ebay

 

Called a few places and none of them carry -10 line...only 3/8"

 

When all other hardware vendors disappoint... McMaster!