SS Feed from factory fuel pump assembly to rail question.

[EclipseOwner95]

Anyone running an SS line from the stock fuel pump assembly to rail? I just wanted to know if a -6 AN fitting will seal properly to the factory barb style fitting on the assembly? My standard -6 AN union threads in and bottoms out, so I'd like to imagine it would work, but I'd like some confirmation before I fire the car up and 100 octane fuel everywhere .

 

[nitrouskris]

Anyone running an SS line from the stock fuel pump assembly to rail? I just wanted to know if a -6 AN fitting will seal properly to the factory barb style fitting on the assembly? My standard -6 AN union threads in and bottoms out, so I'd like to imagine it would work, but I'd like some confirmation before I fire the car up and 100 octane fuel everywhere .

add a clamp and you will me fine

 

[EclipseOwner95]

add a clamp and you will me fine

"Add a clamp" ?

Your kidding right? Factory hardline coming off of fuel pump assembly, that has a barb style threaded fitting on it, that threads directly into my -6AN fitting. It seems like it will seal just fine, but wanted to see if there was anyone who could confirm.

Thanks

 

[99gst_racer]

Anyone running an SS line from the stock fuel pump assembly to rail? I just wanted to know if a -6 AN fitting will seal properly to the factory barb style fitting on the assembly? My standard -6 AN union threads in and bottoms out, so I'd like to imagine it would work, but I'd like some confirmation before I fire the car up and 100 octane fuel everywhere .

It will thread on, but not 'seat' at all. Inverted flare and AN don't mix. The threads would be the only sealing point at that connection, and the threads aren't designed to seal. There's plenty of people out there running it like that with a wad of teflon tape to prevent leaks. I'm amazed they aren't leaking (or maybe they just don't know it is).

The best approach is to eliminate that hardline and weld an AN bung directly onto the top of the pump assembly.

 

[ramsack]

Actually an AN fitting is an inverted flare. They're 37° rather than the 45° the fuel line is, and use a different thread scheme than the metric fuel line fitting. Weld a bung or get an adaptor. You could also cut the line, get a -5 sleeve and tube nut, and a -5 to -6 adaptor, and flare the fuel line 37°.

 

[99gst_racer]

In the automotive industry, this is inverted flare:

Male (lower portion)

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Female

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These connections are NOT directly compatible with AN connections. This is why they make adapter fittings.

 

[ramsack]

Now don't you think that a tube and tube nut ends up looking exactly like your first picture? This is why stuff like the fuel line, and the brake lines, have an inverted flare on the end of them. AN only differs in that the male flare part has the "bolt" type of threads, and the "nut" threads are on the end where the tube flares end up being.

 

[99gst_racer]

They're completely different in the way they seal because of the location of the flare. You can't mate an inverted flare fitting directly to an AN fitting - period.

It's called inverted flare because the male portion has the flare in the ID, which is reversed (inverted) of that of a the male end of a traditional AN fitting. This is why they can't be interchanged.

 

[nitrouskris]

"Add a clamp" ?

Your kidding right? Factory hardline coming off of fuel pump assembly, that has a barb style threaded fitting on it, that threads directly into my -6AN fitting. It seems like it will seal just fine, but wanted to see if there was anyone who could confirm.

Thanks

yes it was a joke, i do believe this has been talked about before. and with a simple search, the person could have found the info.

 

[91stocker]

Cut the factory piece off, drill the hanger and insert a 90* bulk head.

Here's a write up on it.
http://www.dsmtuners.com/forums/articles-engine-fuel/254501-high-flow-fuel-set-up.html

That part of the fuel line likes to break off or leak anyway.


Mine broke off and i did mine exactly as in that write up. Works great so far.

 

[nitrouskris]

DARK SPEED made a adapter fitting that the screwed into the factory hardline and on the other side it had a 8an. search dsmtalk

 

[99gst_racer]

Cut the factory piece off, drill the hanger and insert a 90* bulk head.

Here's a write up on it.
http://www.dsmtuners.com/forums/articles-engine-fuel/254501-high-flow-fuel-set-up.html

That part of the fuel line likes to break off or leak anyway.


Mine broke off and i did mine exactly as in that write up. Works great so far.

That's only a 1G option. 2G cars don't have the depth for that.

 

[91stocker]

That's only a 1G option. 2G cars don't have the depth for that.

Doesnt the op own a 91?

 

[ramsack]

An AN fitting won't meet to a common inverted flare because it's a 37 degree flare and the common inverted flare is 45 degrees. You can flare tubing and connect an AN fitting to it, provided you do a 37 degree flare.

 

[99gst_racer]

Doesnt the op own a 91?

Oops, for some reason I thought he had a 2G. Must have been confusing this thread with another.

An AN fitting won't meet to a common inverted flare because it's a 37 degree flare and the common inverted flare is 45 degrees. You can flare tubing and connect an AN fitting to it, provided you do a 37 degree flare.

I'm finally convinced that you have no idea of the actual difference between the two types of fittings in question here, and I'm officially giving up trying to explin to you the error in your ways. Good luck with you flaring tool.

 

[ramsack]

Oh, so you can't attach an AN fitting to a flared tube? You're full of shit if you think you can't. AN was built around tubing sizes. An AN and a common inverted flare won't mate because the AN is 37 degrees and the standard flares are 45 degrees, not to mention the wrong threads. Not once did I claim you could hook a standard inverted flare (45 degree!) right up to an AN fitting, if that's what you think I'm saying.

I'm sure Russell, Earl's, and countless other companies, all sell tube sleeves and nuts in AN sizes just to as a concept but they're just not meant to work with AN flares

If you got:

Holley Performance Products -5 Aluminum Tube Nut 581805ERL
Holley Performance Products -5 Aluminum Tube Sleeve 581905ERL
Holley Performance Products -6 Male to -5 Male Union Reducer 991907ERL

and flared the stock fuel line with a 37 degree flare tool, it would work.

 

[91stocker]

Oops, for some reason I thought he had a 2G. Must have been confusing this thread with another.

Ah ok, i thought maybe i had missed something . His name says 95' but his car says 91 haha


I dont know why you would bother with flare tools and adapters and all that non sense. All for a piece that will probably break off upon re-installation. Throw a bulk head in there and be done with it haha.

 

[99gst_racer]

Oh, so you can't attach an AN fitting to a flared tube? You're full of shit if you think you can't. AN was built around tubing sizes. An AN and a common inverted flare won't mate because the AN is 37 degrees and the standard flares are 45 degrees, not to mention the wrong threads. Not once did I claim you could hook a standard inverted flare (45 degree!) right up to an AN fitting, if that's what you think I'm saying.

I'm sure Russell, Earl's, and countless other companies, all sell tube sleeves and nuts in AN sizes just to as a concept but they're just not meant to work with AN flares

Read much? Nobody said you can't adapt tube to AN. If you notice, you're the only one in this thread talking about "tube to AN". The OP is asking about adapting male inverted flare to a hose end. THAT IS THE THREAD TOPIC. And you were the one who said inverted flare and AN is the same thing (post #5) - which is 100% incorrect. And the only thing I've been trying to explain since is that they are two completely different fittings.

 

[twicks69]

"Add a clamp" ?

Your kidding right? Factory hardline coming off of fuel pump assembly, that has a barb style threaded fitting on it, that threads directly into my -6AN fitting. It seems like it will seal just fine, but wanted to see if there was anyone who could confirm.

Thanks

Use an aluminum -6AN SECO-7 seal. www.pegasusautoracing.com.

WTH, I thought the application in question was for a 2g?

 

[turboglenn]

If you choose to use the blue push lock You can do what i did (was supposed to be temporary but it's still woring fine) I just cut the threaded part off the fuel outlet on the hanger and clamped the -6 blue line to it with 2 small clamps (used two to be safe) and it's worked just fine and not leaked at all. I always test my fuel system but turningthe pump on and cranking the AFPR up to 85psi, and so far so good. hell even the braided stuff is the same ID so a clamp would work there too.. I know some will knock it or say it's ghetto and honestly i have the -6 to 12mm inverted flare fittingin my "earles box" of goodies, i just did it this way because eventually i'll be cutting the OEM hardline out and replacing it with larger stuff as well as adding the 2nd pump again like i did on my FWD tank

 

[BoostedYeep]

Okay, so I didn't want to make a new thread about fuel lines since we are talking about it here and its a new thread. What fittings/lines/parts do i need to change my whole fuel line from the pump assembly all the way to the front? I dont know which parts to buy or which lines to use, which are the best ones etc. I saw on STM they had a kit with the lines and fuel filter but all I need are the lines. Can anyone help me here? I busted it up while changing the fuel pump since it was all rusted and messed up. Might as well change the whole line.

 

[SHEARER_TSI]

What AFPR are you using/ going to be using? Here is an example of one fitting you will need if using the factory fuel rail, they make them in all different sizes 6AN, 8AN etc.

http://www.extremepsi.com/store/product.php?productid=17652&cat=257&page=1

 

[ramsack]

Tubing itself can not have an inverted flare. An inverted flare fitting is just that, a fitting. A tube and a tube nut is a standard flare, it DOES NOT matter what gender the threads of the fitting and tube nut are. We are both wrong, An AN fitting is not an inverted flare, but neither is a brake line or anything involved tubing. You should remove my negative reputation points you can give out at will because of your position of "power".

 

[Boosted98gsx]

Anyone running an SS line from the stock fuel pump assembly to rail? I just wanted to know if a -6 AN fitting will seal properly to the factory barb style fitting on the assembly? My standard -6 AN union threads in and bottoms out, so I'd like to imagine it would work, but I'd like some confirmation before I fire the car up and 100 octane fuel everywhere .

-6an is SMALLER ID than the factory feed.

You're wasting your money.

 

[EclipseOwner95]

-6an is SMALLER ID than the factory feed.

You're wasting your money.

, wish I could give negative rep.

-6AN is about 50% larger than stock feed.

-6AN ID

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Factory Feed ID

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