Fuel line fittings for 2g

[slowpoke]

I am in the process of upgrading my fuel lines. I have checked out this website:

http://www.stevetek.com/R-FuelSys.html

and checked on this forum. My question to you is the fitting from the fuel pump sending unit feed line, and the end of the feed line where it connects to the fuel filter -6an? If so, I should have no problems getting the AN fittings to screw on right? I looked at the part #'s and checked with www.Jegs.com and they don't match from what's on Steve Tek Labs website. I plan on using the factory feed line for my return like this website suggested.

If you don't have nothing nice to say, don't reply at all. I am tired of people bashing people on this website when they do there search and honestly still don't know the answer.

Thanks in advance

Gil

 

[xinfiniter]

Yep, the fitting off the fuel pump is a 6an...just any earls or aeromotive fitting will work. It was a b**** to get the hose off of that fitting for me I ended up using some vise grips to get it off, hopefully you'll have better luck. When you do take that fitting off, use those special brake line wrenchs the ones that have the open end boxed in more and it should be easier. I redid my complete fuel system so if you ahve any problems let me know or send me a PM.

 

[slowpoke]

Yep, the fitting off the fuel pump is a 6an...just any earls or aeromotive fitting will work. It was a b**** to get the hose off of that fitting for me I ended up using some vise grips to get it off, hopefully you'll have better luck. When you do take that fitting off, use those special brake line wrenchs the ones that have the open end boxed in more and it should be easier. I redid my complete fuel system so if you ahve any problems let me know or send me a PM.

That's what I figured. Thanks xinfiniter for the quick answer to my question. I already have all the fittings and I am going to try to attack it this weekend. I have line wrenches and I have some pipes that will fit around them so I can use them as a breaker bar. Hopefully it works out for me. That is the only part that everyone has a hard time with from what I have been reading.

Gil

 

[maximumbob]

Is the fitting on the feed line to the bottom of the fuel filter a -6an?

Planning this myself...hopefully Thanksgiving.

Bob

 

[joeracer321]

Is the fitting on the feed line to the bottom of the fuel filter a -6an?

Planning this myself...hopefully Thanksgiving.

Bob

Nope the fitting at the bottom of the fuel filter is 14X1.5.

I ended up welding a whole new 90 degree -6 hard line on the top of the fuel pump assy. It was pretty easy too. Just cut off the old one. drilled out the hole and welded a new one on. Then I ran -6 twist lock hose up front to an earls fuel filter. Then to the -6 fuel rail adapter. Then out the rail through another -6 rail adapter to an aeromotive regulator. Then back to the stock return line. I am confident that this system will flow more fuel than I will ever need. But The line on the tank, WAS A MOTHER FU%$ER to get off. I ended up crimping the line, and that is why I changed it in the first place, but I am glad i did. 1/4" line is not enough too feed any more than maybe a 16g.

 

[slowpoke]

Nope the fitting at the bottom of the fuel filter is 14X1.5.

I ended up welding a whole new 90 degree -6 hard line on the top of the fuel pump assy. It was pretty easy too. Just cut off the old one. drilled out the hole and welded a new one on. Then I ran -6 twist lock hose up front to an earls fuel filter. Then to the -6 fuel rail adapter. Then out the rail through another -6 rail adapter to an aeromotive regulator. Then back to the stock return line. I am confident that this system will flow more fuel than I will ever need. But The line on the tank, WAS A MOTHER FU%$ER to get off. I ended up crimping the line, and that is why I changed it in the first place, but I am glad i did. 1/4" line is not enough too feed any more than maybe a 16g.

Okay now I am confused again. Let's all get this straight. There will be a total of three of the factory fittings we will be attaching to when doing a fuel line upgrade.

1) The feed from the tank

2) The hard feed line closest to the tank (It will attach to the return in the tank)

3) The hard feed line where it connects to the bottom of the fuel filter

Correct me if I am wrong here. Now xinfiniter said that #1 on my list is an -6AN fitting. Your saying #3 on my list is an 14x1.50 right? Now what is #2 on my list? If I am missing something let me know.

Gil

 

[98TsiAWD]

Okay now I am confused again. Let's all get this straight. There will be a total of three of the factory fittings we will be attaching to when doing a fuel line upgrade.

1) The feed from the tank

2) The hard feed line closest to the tank (It will attach to the return in the tank)

3) The hard feed line where it connects to the bottom of the fuel filter

Correct me if I am wrong here. Now xinfiniter said that #1 on my list is an -6AN fitting. Your saying #3 on my list is an 14x1.50 right? Now what is #2 on my list? If I am missing something let me know.

Gil

Ok, here is what you need to do.

Get a -6AN SS fuel line of course, then attach it to the fuel pump housing with a -6an female fitting. Then under the hood install a -6an female fitting on the SS line, then attach an inline Earls -6an fuel filter (filter has male -6an fittings on both ends), then run a line from the fuel filter to the fuel rail, you will need to put female -6an fittings on both ends of this line. You will need to install a -6AN male adapter fitting to the fuel rail. That can be purchased from www.fullthrottlespeed.com
The -6AN SS fuel line, fittings, and earls fuel filter can be bought from www.summitracing.com

 

[joeracer321]

If you run new line from the tank you do not need to worry about any other metric adapters. Trust me you need to ditch that stock fuel filter, it is another bad restriction in the system. You can find -6 fuel rail adapters, then all you need is a high flow fuel filter and pressure regulator, and you have a full on badass fuel system.

 

[slowpoke]

Okay so now my questions are completely answered. all the stock lines take -6an fittings from what I thought before. I have all the fitting then. I am replacing my fuel filter with one that has AN fittings on it.

Now like joeracer321 said, if I am going to use the stock fuel filter then I would need that metric fitting.

Please tell me I got this right now.

Thanks,

Gil

 

[xinfiniter]

Sounds like you know what your doing...

Edit, the only stock fitting that is -6an is from the fuel pump. Then you are going to use your aftermarket fuel line, aftermarket fittings, aftermarket fuel filter, then attach to the fuel rail with a -6an adapter right. Are you doing any more?? Thats probably what you said you were going to do, but my brain is closed until about noonish.

 

[slowpoke]

Sounds like you know what your doing...

Edit, the only stock fitting that is -6an is from the fuel pump. Then you are going to use your aftermarket fuel line, aftermarket fittings, aftermarket fuel filter, then attach to the fuel rail with a -6an adapter right. Are you doing any more?? Thats probably what you said you were going to do, but my brain is closed until about noonish.

I am doing all you said for the new feed side but I read that for the return, you use the stock feed line. Now I would like to use the stock feed line to be my return. I need to know the size for the fitting where it connects to the fuel filter and where the hard line connects to the rubber hose before it goes to the tank so I can connect it to the return.

Gil

 

[xinfiniter]

Ya, I cant help ya there, I just used the stock return line. But I guess you would cut the fitting off the stock feed line where the fuel filter use to be and run a hose from the fpr to the stock feed line in the engine bay. Then by the fuel tank, where you pushed the stock feed line out of the way for your new feed line, try to either find and adapter from a -6an female to whatever size the return line fitting is or cut both of the fittings off and use a hose. Goodluck with it.

 

[slowpoke]

Attached is a drawing to show you what I am wanting to find out. Anyone that knows the answer for a fact please respond so I can get this straighten out. I want to use the stock feed line for my return.

Gil

 

[joeracer321]

look at post 5

fuel filter fitting is 14x1.5 on the bottom

fuel pump fitting is -6 an


If you are running new line why are you worrying about the fuel filter fitting?

 

[slowpoke]

look at post 5

fuel filter fitting is 14x1.5 on the bottom

fuel pump fitting is -6 an


If you are running new line why are you worrying about the fuel filter fitting?

So your saying that both fittings circled in red on my drawing is 14x1.5? I haven't even looked at it on my car yet. I was trying to get the information so I know I will have the right parts before I start on it.

The only new line I will be running is the feed line. I want to use the existing stock feed line as my return to the tank. That is why I want to figure the fitting sizes.

 

[joeracer321]

the stock return is plenty and there is less work involved, why are you hung up on using the stock supply line as the return?

 

[Staytuned]

I hope I can shed some light on this topic. I did the -6 an lines from the fuel pump to the fuel rail. I needed a 14mm / 1.5 female to a - 6 an male adapter on the neck coming out of the fuel sending unit. I then used an Aeromotive fuel filter to clean the fuel berfore going into the AEM rail. You can see all my mods here http://www.cardomain.com/memberpage/517499/2

Keep the return line stock you do not need to upgrade it.

 

[Staytuned]

Oh I forgot ...I could not find anything to adapt the SS lines to the bottom of the fuel filter. So I went with the Aeromotive one. If you are going to increase the size of the line you might as well get a high flow filter too.

 

[slowpoke]

I just figured that it would only make sense to have the fuel return bigger and to save money, just tap on to the stock feed line. I heard of people having problems with the fuel pressure being to high and could not lower it. I would think that the stock return line would be the reason so that is why I am trying to cover all problems before it starts.

Gil

 

[joeracer321]

the reason is the stock fuel pressure regulator, it is junk and can not keep up with the flow of the 255lph pump, if you get a good regulator you'll be fine.

 

[Staytuned]

With the AEM FPR you get a choice of return line orifices that you can swap out ....it's kinda like a jet for a carb ....it controls the amount of fuel leaving the FPR. I chose to use the medium sized one and have never had a problem with controling the pressure. I can dial in as much or as little FP as I want.

 

[slowpoke]

the reason is the stock fuel pressure regulator, it is junk and can not keep up with the flow of the 255lph pump, if you get a good regulator you'll be fine.

Okay, I have a 255lph HP Walbro rewired, Barry Grant Hi Flow fuel filter, FIC fuel rail, FIC 650's, and Aeromotive fpr. Well I guess there's no use of doing what I had planned on. I just thought it would only make sense.

Gil

 

[Staytuned]

Gil I know what you are going through ...I had a hell of a time putting my fuel system together last winter. I tried one local speed shop to get the right Earls fittings for what I wanted and I ended up leaving more F@#$ed up then when I went in. So I ended up getting ahold of an Earl's - Holley cataloque and going through it on my own....it turns out all good in the end.

 

[98TsiAWD]

Ok, looks like you have all the aftermarket -6AN feed line figured out.

Now for the return slide the swivel screw fitting down on the stock feed line, and then slide rubber fuel line over the flared end and clamp it on. Very easy, no special fittings are needed to use the stock feed line for your return. Do the same thing with the swivel fitting on the stock feed line under the car by the fuel pump, just slide a rubber hose over it. It will be hard to slide over those flares, but it will go on.

 

[98TsiAWD]

Okay, I have a 255lph HP Walbro rewired, Barry Grant Hi Flow fuel filter, FIC fuel rail, FIC 650's, and Aeromotive fpr. Well I guess there's no use of doing what I had planned on. I just thought it would only make sense.

Gil

Actually yes you should use the stock feed for your return. Alot of guys including myself on the DSMlink forums have done this. You were right in saying that people had issues getting their AFPR to adjust as low as they wanted using the stock return.