fuel system suggestions

[rstare]

Hmm, I think I see what you guys are doing. I just did what I thought was logical. I ran the -8an feed line to the passenger side of the rail (with an -8an fitting welded on) and then I welded a -6an onto the other side (because that's where my AFPR and stock line is run) for the return. Don't mind the crappy welds. I tried to braize this one together and it didn't work

You must be logged in to view this image or video.

MB

Ah, I see. That's basically how mine is run, just no fittings welded on, obviously. I'm guessing that is a 95' fuel rail, cause my test port is on the passengers side of the fuel rail.

That's how I was picturing your rail, sometimes words just get confusing.

 

[rstare]

Sorry guys, I didn't mean to throw you for a loop on this one. At the time, I measured out the ID of the stock line and it was just a hair tick under the line that I was using (just slightly smaller). So it would be considered -6an. But that's what I meant by being"smaller".

For most applications -6an would be enough. When you start looking at above 400whp, I would go with -8an.

Just would like to make a correction for future reference.
After a discussion with a few other 2gnter's....
The ID of the stock line is 5/16, the OD however is 3/8.
Making -6an a good size upgrade and IMO would be able to flow enough for the OP's 450-500hp.

 

[96TurboGS]

Making -6an a good size upgrade and would be able to flow enough for the OP's 450-500hp.

Agreed, -6an is plenty of fuel....

 

[bullettdsm]

Just would like to make a correction for future reference.
After a discussion with a few other 2gnter's....
The ID of the stock line is 5/16, the OD however is 3/8.
Making -6an a good size upgrade and would be able to flow enough for the OP's 450-500hp.

Hmm, I'm not sure if that was directed at my previous posts but I thought I was clear on my description of what and why I did what I did. I give you all that long ass post so that you may understand my thought process and make your own decision. I think I made it clear at the end of my post about my position;

As for the lines, refer back to the dual walbros. -8an is safer than -6an.............. Keep in mind that (I believe) the stock line is actually less than -6an (I use the stock line for my return line). But I would be comfortable with -6as a fuel line.

Just my "IMO"

MB

And I understand that you spoke to some "other" 2gnt'ers and I'll respect their opinions. But I'll stand by my assessment because I actually measured my stock line ID and it was again, just slightly smaller than the ID of my -6an line that I was using (the measurement was in metrics and, no, I don't remember the numbers, ). Hey maybe there's something funky about my line but that's what I saw.

So call it a "correction" if you like. I read it differently

MB

 

[chris712vt]

Mark I will never trust another number, measurement, or any piece of advise from you again. Credibility = 0.

 

[bullettdsm]

Credibility = 0.

Damn

Well, 0 is just one step away from being #1 (ever the optimist)

MB

 

[rstare]

When you originally said 3/8" on the stock feed I expressed my opinon that I thought that was rather large. I have a -6an return line and the stock feed line. When I get home I will try and take a picture of the two side by side (weather permitting), but I'm pretty sure you will notice a size difference between the two.
I'm not trying to start a argument and I respect what you think about needing -8an. I was just about 100% sure that the feed wasn't 3/8" and I don't want a bunch of people in the future to get the wrong idea.
You've been doing this alot longer then most of us, but IMO I think -8an overkill. But, to each his own.

Edit: Mark something just came to mind... Where exactly did you measure the stock line when you got 3/8"?

 

[bullettdsm]

When you originally said 3/8" on the stock feed I expressed my opinon that I thought that was rather large.

Hmm, generically a 3/8" line is considered -6an. I currently have a -6an line connected up to my stock line (using the stock fitting). I don't think I put any info out there that said I measured 3/8" but what I did say was that I measured the ID of the line for -6an that I attached, versus the stock fuel line and found that the stock line was just slightly smaller than the -6an (slightly, again I measured in metrics and I don't remember the numbers)

I'm not trying to start a argument

Too late. You and I are throwin' down now! Just give me a minute to get up out of my rocker .

Naw, no problem here. I'm just giving my opinion and reasoning and allowing people to make decisions of their own accord. Sometimes that can conflict with others ideas. I got no problem with that

.....and I respect what you think about needing -8an....... but IMO I think -8an overkill.

I think in my post where I elaborated, I pushed the idea that I did -8an as more of a safety net (and a precurser to more power - as Ajax pointed out) than a necessity. I would not say "needed" is what was meant (as I pointed out in the previous post)

And Ryan, just so we don't get any "internet miscommunication", its all good

MB

Oh wait a sec (as I edit like you just did), I'm measuring the line at the firewall, are you measuring at the rail? THAT would explain the difference. I didn't consider the rail as a measurement spot because I put on the fittings etc.

Ah, maybe that's it!

 

[kinter86]

So for 450whp, ~6an lines would work, not is that for both the suplly and the rerurn. Also, where is a good place to get SS fuel lines? Thanks, all of you input is really helpful.

 

[bullettdsm]

So for 450whp, ~6an lines would work, not is that for both the suplly and the rerurn.

But I would be comfortable with -6as a fuel line.

Just my "IMO"

MB

I feel so "impotent" quoting myself

That would be for both feed and return line. As I said, I err on the side of safety for fuel components. That's a reason's I run -8an feed line.

MB

 

[rstare]

Hmm, generically a 3/8" line is considered -6an.

Sorry I subconsciously converted.

Naw, no problem here. I'm just giving my opinion and reasoning and allowing people to make decisions of their own accord. Sometimes that can conflict with others ideas. I got no problem with that

I think in my post where I elaborated, I pushed the idea that I did -8an as more of a safety net (and a precurser to more power - as Ajax pointed out) than a necessity. I would not say "needed" is what was meant (as I pointed out in the previous post)

And Ryan, just so we don't get any "internet miscommunication", its all good

And I think this is what I missed; that you said it was more of a precaution and I totally missed what you said about being comforatable with -6an. I also forgot that you are aiming a little higher then 400hp . Sorry for my lack of reading, .

Oh wait a sec (as I edit like you just did), I'm measuring the line at the firewall, are you measuring at the rail? THAT would explain the difference. I didn't consider the rail as a measurement spot because I put on the fittings etc.

I'm pretty sure that's where the miscommunication is.
Well, I'm glad we got all that cleared up.

 

[bullettdsm]

Well, I'm glad we got all that cleared up.

Cool beans

MB

 

[Ajax]

Just remember what kind of fuel you want to run at the end aswell. Like I stated -6an was fine with regular gas but I switched to E85 and was told i would need the -8an.