Actually a two part question:

1) How to remove hard lines from fuel rails?

2) Anyone make an adapter to get an AN fitting coming out of the rails?

Thanks,

-Z

 

there is a tool to ease removing the stock line from the rail, slips in and allows the line to pop off of the rail.

there are 2 easy ways to change the rail to An, I used Earls Tube adaptor to AN fittings on mine and my friend used an OEM style to AN fitting on his.

My rail,



my friends rail,

 

Thanks for the reply. Nice pics by the way.

But what I want to do is take the hard lines off of the rails themselves.

i.e. the crossover and the return/fuel hard lines that are directly connected to the aluminum fuel rail extrusion.

Make sense?

-Z

 

Check the exploded view of the fuel rails on Shoebox's page. It shows small clips screwed to the inside of the rails that hold the cross-over/o-ring in the rails on both sides. Can't remember how the one comes out of the passenger side. I used -6AN weld-in fitting on the back of each rail. Left the cross-over on the front, and welded a -6AN fitting on it to use as a return line connection.

Also drilled the passenger side rail and welded on a 1/8" NPT bung for a fuel pressure sensor.

return line and pressure tap

fittings at back of rails

 

Theres a company called Pure Choice Motorsports that makes adapters that snap into our fuel rails & have a male -6AN fitting them. www.performanceplumbing.com or 1-888-505-8355. I've ordered from them several times & have always been impressed with thier customer service.

They also have lots of other specialty plumbing parts....

 

Zepher, do you have a part number for those Earl's fittings you used on your setup?

Also, did you guys keep the steel hardline underneat the car, and just use another adapter there, running braided line just between those hard lines and the fuel rails?

 

The Earl's fittings he mentioned are just simple tube to an fittings...any performance shop would have 'em. Summit has em too....too lazy to look it up. You will need some specialized tool...flaring tool....and know how to use them to do this....not hard, but a little tricky.

I have not seen the OEM style before however. Looks like they just snap on like the plastic lines did?? Where did you get them? Who makes them?

Thanks

 

The Earls fittings don't need to have the tube flared. They are a compression style.
5/16 and 3/8 are the sizes you need.
165056 is the # for the 5/16 to -6an.
I'll havce to find the # for the 3/8 part.

On my thirdgen, I am going to run braided to the hard lines and braided from the hard lines to the tank at the rear of the car until I can afford to run braided all the way.

Those other adaptors came from Street and Performance, but I think that they originally came from www.performanceplumbing.com and S&P just re-sells them. I think they were $70 a pair.
I can't remember the exact price since we ordered so much stuff when we built my friends 82 Trans Am up.

To eliminate the stock hard lines on the fuel rail, my friend welded some AN fittings onto the ends and on the top of each side and used an Aeromotive external regulator.
http://www.abrinoperformanceengineer...es/rspage.html

 

OK, that answers it.

I will either get some pipe-to-AN fitting for the ends and thread the rails or TIG them as the previous poster said.

VERY nice job on the rally stroker!

-Z

 

Zepher,

Did the 3/8 and 5/16 compression fittings fit well for you? Maybe I didnt tighten mine enough when i tried today (just hand tight), but they would not seal with the hard line and would just come right off.

 

When tightened with two wrenches, they will not come off and won't leak.
On my friends 82, we have those fittings on the hard lines that come off of the fuel tank, they are on there really tight.

 

How do the AN to tube adapters work? If there's no flare what holds the fitting to the line?

 

there is a brass ball with a hole in it that gets squished when the fitting is tightened on the pipe.