Fuel Line Plumbing

[ProTouringCuda]

Where can I find a good source for designing, installing, and plumbing fuel line from the tank to the rail? Seems like a simple thing, but in my search, I can't find a good source, or primer, on how to do it "right".

I want to run hard line most of the way, and am having the most difficult time figuring out how to get the line through a box frame rail. Also, what's better: stainless line or AL? Which is easier to work with? Many more questions as well...

[Schwartz Performance]

Not sure of where to find the info you're looking for..
However, stainless is "better" because it is less likely to corrode, and holds up to harsher circumstances.. But aluminum is way easier to work with and bend. We've used both with success. Stainless may be better for flaring and installing tube nuts/sleeves onto because of it's strength, but aluminum conforms easier...

I guess I don't have any solid answers for you, sorry! lol.

Going through a frame rail you could use a bulkhead fitting, or bore a hole through and weld a piece of tubing in for the line to go through.

-Dale

[ProTouringCuda]

Yeah - I figured a bulkhead fitting, but I don't see any readily available to go through a 2" rail, either in NPT or AN.

[andrewb70]

Yeah - I figured a bulkhead fitting, but I don't see any readily available to go through a 2" rail, either in NPT or AN.

For the love of all that is good and holy, please don't use NPT...It's for house plumbing...LOL

Andrew

[ProTouringCuda]

For the love of all that is good and holy, please don't use NPT...It's for house plumbing...LOL

Andrew

NPT with a conversion to AN

[ProTouringCuda]

This is WHAT I'VE BEEN LOOKING FOR!!! Thru-Frame 3/8". These are VERY common for brake lines, but the only place that I've found them for fuel is Pure Choice Motorsports.



http://www.purechoicemotorsports.com...rod/prd346.htm

[parsonsj]

You should consider Cunifer (copper/nickel alloy) tubing, though I've used aluminum and SS too. But once I worked with Cunifer, I'll never go back to SS again. SS is just difficult to work with in so many ways.

http://store.fedhillusa.com/38fuelhydraulicline.aspx

[andrewb70]

This is WHAT I'VE BEEN LOOKING FOR!!! Thru-Frame 3/8". These are VERY common for brake lines, but the only place that I've found them for fuel is Pure Choice Motorsports.

http://www.purechoicemotorsports.com...rod/prd346.htm

John,

If that fitting is bare aluminum modern ethanol blended gas will attack it. If you go with it, get it hard anodized first. I also hate that it has NPT thread, which means now you have to get a NPT to AN adapter. This is just adding potential leak points.

Personally, I would make my own bulkhead fitting out of some aluminum tubing, but make it big enough that I can run some PTFE hose through it. Or just drill holes and use rubber grommets to protect the hose.

Andrew

[ProTouringCuda]

You should consider Cunifer (copper/nickel alloy) tubing, though I've used aluminum and SS too. But once I worked with Cunifer, I'll never go back to SS again. SS is just difficult to work with in so many ways.

http://store.fedhillusa.com/38fuelhydraulicline.aspx

John

I appreciate your experienced reply - I'd never heard of Cunifer before - and an experienced mechanic friend never had either.

I will go the Cunifer route - this is exactly the kind of knowledge I'm looking for!

John

[parsonsj]

You'll love the Cunifer. Easy to work with, attractive, and will last forever.

[Auto Rod Technologies]

For the love of all that is good and holy, please don't use NPT...It's for house plumbing...LOL

Andrew

I agree with this statement, and with having that logic I was surprised when I had to figure out that the edelbrock fuel rails I bought had npt at the ends.

[Auto Rod Technologies]

I also had a talk with Aeromotive tech and they stated not to use hard line on a FI engine due to the pulsing of the injectors being heard through the hard line.. Anybody else have any info on this??

[ProTouringCuda]

OK - so I got 12' of Cunifer delivered today. It's in a coil. What's the trick to straightening it out?

[Jetfixr320]

Home made tool to straighten tubing,
http://mearcatmini.blogspot.com/2011...ake-lines.html

Or you can buy one
http://www.eastwood.com/tube-straightener.html

[ProTouringCuda]

Home made tool to straighten tubing,
http://mearcatmini.blogspot.com/2011...ake-lines.html

Heading down to Lowes tomorrow in search of rollers!

Or you can buy one
http://www.eastwood.com/tube-straightener.html

Seems a bit much...

[parsonsj]

Use the following method at your own risk. I am not responsible if something bad happens. OK? (also don't judge me!)

Unroll it as best you can. Attach one end to something very solid. Attach the other end to your truck or some other vehicle. Using the vehicle, slowly pull the tube straight. It will come out as straight as an arrow. Just be careful and don't pull your house off its foundation.

[ProTouringCuda]

Use the following method at your own risk. I am not responsible if something bad happens. OK? (also don't judge me!)

Unroll it as best you can. Attach one end to something very solid. Attach the other end to your truck or some other vehicle. Using the vehicle, slowly pull the tube straight. It will come out as straight as an arrow. Just be careful and don't pull your house off its foundation.

That's funny stuff right there - Visions of YouTube video's of how NOT TO straighten tubing just appeared in my mind...

[wiedemab]

JP - -what types of flares have you done on the Cu/Ni alloy for fuel lines? 37deg? or do you do all double flare fittings?

[silverbullet99]

Here's another one from Eastwood that is more reasonable @ $80.00:

http://www.eastwood.com/eastwood-han...6-1-4-3-8.html

[ProTouringCuda]

Here's another one from Eastwood that is more reasonable @ $80.00:

http://www.eastwood.com/eastwood-han...6-1-4-3-8.html

Yep - I bought this one. Works very nicely.