AN fittings for fuel injected cars-Help

[armandodiaz]

This is holding up my project. Can anyone tell me what fittings I need in order to replace my rubber lines to steel braided? I know I will be using AN-6 and I know all the connections to the fuel injector rails are the same. What I don't know is if the AN fittings will screw right in, or do I need an adaptor?

[BReyes]

Rmando:

You may want to give Amazon Hose (407-843-8190) a call. They are in Orlando. I had my fuel lines replaced with steel braided. They would just use "their fittings". There are also German suppliers ( I think I have a link, but I would not go there unless you want SPAM from Germany too .

Good Luck. See you soon!

Regards,

Remember AN is not metric.

[BReyes]

sorry for misspelling

[armandodiaz]

Thanks BReyes, now that I think of it I also have an Amazon near me in Miami. Using the old fittings would definately work. But at some point & time I will need some kind of convertion fitting. I will be replacing my fuel tank with a fuel cell that uses all AN fittings.

[armandodiaz]

...

[anp abrams]

Go to one of the aircraft pneumatic or fuel repair shops off of 36th street in Miami Springs,they can hook you up

[ttweed]

Originally posted by armandodiaz
But at some point & time I will need some kind of convertion fitting. I will be replacing my fuel tank with a fuel cell that uses all AN fittings.

You can get the AN to metric conversion fittings from Earl's Performance Products or their dealers, like Pegasus Racing.

TT

[BGCarrera32]

The fastest way with the least amount of farting around is to replace your male metric fitting at the driver's side fuel rail with a male -6AN...have it tigged or brazed on. At the fuel pump and tank return, reuse the old fittings from your factory lines...dremel off the clamps and reuse the banjo fitting for the pump and the metric female fitting for the tank return. The hose barbs on those will fit right into a -6AN size hose and can be secured with a hose clamp. Switch fuel filters...use a Bosch filter for an Audi A4 from 99-03...you will be able to thread -6AN adapters right into that one. It looks just like the factory Porsche filter but has the correct threads.

Good luck...this takes more work to sort than you think if you haven't done it before.

-BG

[armandodiaz]

Thanks anp I'll look them up.

Tom I've looked at earl's and russell's website, the only thing I see for metric conversontions have o-ring seals.

[armandodiaz]

Originally posted by BGCarrera32
The fastest way with the least amount of farting around is to replace your male metric fitting at the driver's side fuel rail with a male -6AN...have it tigged or brazed on. At the fuel pump and tank return, reuse the old fittings from your factory lines...dremel off the clamps and reuse the banjo fitting for the pump and the metric female fitting for the tank return. The hose barbs on those will fit right into a -6AN size hose and can be secured with a hose clamp. Switch fuel filters...use a Bosch filter for an Audi A4 from 99-03...you will be able to thread -6AN adapters right into that one. It looks just like the factory Porsche filter but has the correct threads.

Good luck...this takes more work to sort than you think if you haven't done it before.

-BG

BG thanks for the input. I am under a dead line since my next DE is in 3 weeks.
I've opted for the in-tank fuel pump. This will go to a Mallory 5 micron fuel filter mounted up front. From there I plan on running 2 new aluminum fuel lines with AN fittings to through the tunnel. I then plan on taking the feed and return lines to Amazon and get them to create a steel-braided version but with the Porshce fitting on one end and an AN fitting on the other. As for the fuel injection lines, I will also take those lines to Amazon for replacement with the original fittings. Does that sound like a plan?
Your right, if you never converted before it is tricky.

[ryanmt]

I bought some re-usable metric fittings that worked with -6 AN hose. They were pricey $20 for a straight fitting and $40 for a 45 or 90 degree fitting. I used them on my fuel lines and so far so good.

The name of the company that sells these is BAT Inc.

[armandodiaz]

I know of Bat, they sell oil coolers for the 911s. Thanks ryanmt I'll try them.

[David]

There was some discusion of this on the old forum at www.turbo911.com you could search for.

[DW SD]

I've been doing some of this recently. Just got my fuel system up to pressure last night, in fact. I used caliper to measure the 8mm hard lines. They are .0024" (24 ten - thousands) larger than 5/16th". Not much. I bought Earl's compression fittings 5/16th" hard line to -6 AN. It worked like a charm. Just hard to make sure the hard line was cleaned up very well. The fit is very tight for the compression nut and just right for the compression sleeve, itself. These are about $8 at street rod performance OR Summit.
BTW - I was concerned about running slip compression fittings and called tech support at Earl's to make sure they'd be safe at EFI pressures. They guarantee the fittings for 60 psi or less and intend them for fuel lines, including EFI.

Hope that helps!

Doug

[armandodiaz]

Originally posted by DW SD
I've been doing some of this recently. Just got my fuel system up to pressure last night, in fact. I used caliper to measure the 8mm hard lines. They are .0024" (24 ten - thousands) larger than 5/16th". Not much. I bought Earl's compression fittings 5/16th" hard line to -6 AN. It worked like a charm. Just hard to make sure the hard line was cleaned up very well. The fit is very tight for the compression nut and just right for the compression sleeve, itself. These are about $8 at street rod performance OR Summit.
BTW - I was concerned about running slip compression fittings and called tech support at Earl's to make sure they'd be safe at EFI pressures. They guarantee the fittings for 60 psi or less and intend them for fuel lines, including EFI.

Hope that helps!

Doug

So your saying you reused the factory hard lines that run through the tunnel? Refresh my memory, with the nut and sleeve, do you have to flare the ends?

[DW SD]

Armando,
Yes - I reused the factory lines, but put 5/16th" compression slip fittings on the lines, which have AN -6 fittings on the other end. Here's a photo:

BTW - I did call tech support at Earl's who assured me those fittings are good (guaranteed is the word he used) for 60psi or less.
The male AN fitting part is: 165056ERL . I bought them from www.amstreetrod.com

Doug

[DW SD]

BTW - probably clear from the photo, but no flaring required. Flaring is probably better, but I couldn't find the right tube nuts, nor do I have a nice flaring tool for the job.

Doug

[armandodiaz]

You the man, Doug, this will make life so much easier. I believe the most we have to worry about is 40psi (37 to be exact)

[DW SD]

Yep - I'm running a 3.2L '86 Carrera engine, too, so that's all the pressure we have to worry about. This little find made life a lot easier. When I have the engine out, I'll add these fittings in the rear. They are not easy to access in the rear.

Good luck - glad it helped! The fit was very tight, so clean up the hard lines well and use a wrench we you twist the first fitting into place.

Doug

[widebody911]

Timely information - I have a fuel cell sitting on my garage floor which I had no clue how to hook up.