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5.3 swap fuel line

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Old 03-16-2015, 09:54 AM
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Default 5.3 swap fuel line

is it a bad idea to use rubber fuel line from the Rail to Pump ?
Old 03-16-2015, 10:21 AM
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Bad no, but you won't be able to take it to the track. Run hardline for the main sections and use short pieces of rubber
Old 03-16-2015, 10:42 AM
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Originally Posted by 68birdls1
Bad no, but you won't be able to take it to the track. Run hardline for the main sections and use short pieces of rubber
why not to the track? Just because they wont approve of it ?
Old 03-16-2015, 11:20 AM
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Correct. Must meet certain criteria to run at the the track. Supposedly some sanctioning bodies will allow for SS braided line, but not straight rubber. You can get all the rules here for NHRA:

http://nhraracer.com/content/general...000&zoneid=132

Good luck!
Old 03-16-2015, 01:09 PM
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Also..plain rubber fuel injection line is pretty damn expensive. You wouldn't be saving much. Might as well spend a bit more.
Old 03-17-2015, 10:33 AM
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I just dropped $400 on my fuel line, I went with the fragola ptfe. No fuel smell, track approved and will last forever
Old 03-17-2015, 07:22 PM
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Originally Posted by 68birdls1
I just dropped $400 on my fuel line, I went with the fragola ptfe. No fuel smell, track approved and will last forever
how did you attach it to the fuel rail? Just looking at this same topic myself and don't believe the quick connect fittings work with PTFE.
Old 03-17-2015, 07:49 PM
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Originally Posted by ErikSOCAL
how did you attach it to the fuel rail? Just looking at this same topic myself and don't believe the quick connect fittings work with PTFE.
Check out TechAFX and their QD jumpers. They have all the fittings to go from the quick disconnects to the hard line. I have not used the products yet but plan to in the near future.

http://www.techafx.com/category/prod.../38-qd-jumpers
Old 03-17-2015, 08:05 PM
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I don't know what keeps more people from doing what i did, but for me it was easy to use and worked flawlessly. Take a look into a dorman 800-300 fuel line repair kit, and pick up 5/16 and 3/8 nylon fuel line. You can package it all together from Amazon for around $225. The fuel line kit has enough connections to put the system together and have quick disconnect fittings front to back. That and the nylon line is pretty well impervious to the elements and any fuel you wish to use. Only drawback I can think of is that you can't bend tight radius turns with it, but plan your system out and you'll have nothing you can't work around.
Old 03-18-2015, 11:33 AM
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Originally Posted by ErikSOCAL
how did you attach it to the fuel rail? Just looking at this same topic myself and don't believe the quick connect fittings work with PTFE.
There are a few different companies that have the fittings that work with our fuel rails. Any one will do, and then you just mate that fitting with the hose end fitting. Boom
Old 03-20-2015, 06:32 PM
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Originally Posted by 68birdls1
Bad no, but you won't be able to take it to the track. Run hardline for the main sections and use short pieces of rubber

Most rubber push lok hose is NHRA approved. Like the parker stuff. Its fairly cheap as well. $3/foot in most cases. Hose ends are about 5 bucks or so. If you're not running a return line, you can get a 15 foot section of push lok hose for $50 and 2 hose ends for $5 each and be pretty much done for $60.
Old 03-21-2015, 05:29 AM
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Originally Posted by JoeNova
Most rubber push lok hose is NHRA approved. Like the parker stuff. Its fairly cheap as well. $3/foot in most cases. Hose ends are about 5 bucks or so. If you're not running a return line, you can get a 15 foot section of push lok hose for $50 and 2 hose ends for $5 each and be pretty much done for $60.
That's good to know! I didn't think that was approved 👍
Old 03-21-2015, 08:23 AM
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I'll have to find the list. It's on the NHRA website. The stuff from the big manufacturers like Fragola, russels, aeroquip, and even the summit twistlok stuff is NHRA approved. Some tracks might see the rubber and complain, so a print out of the sheet is nice to keep. It's actually synthetic rubber over a woven braid, And not a traditional rubber line.
Old 03-21-2015, 10:28 PM
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Where are you finding this Parker stuff for sale at?
Old 03-22-2015, 12:49 AM
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Here is the NHRA approved list.
http://www.dragstuff.com/techarticle...lock-hose.html

The Fragola stuff is cheap. Blue or Black. 20 feet of -6 AN for $55.
http://www.summitracing.com/parts/fra-872006/overview/

Hose ends are fairly cheap as well. $4/each for -6 AN.
http://www.summitracing.com/parts/fr...6-bl/overview/

The Summit brand stuff is also an approved hose and 15-20% cheaper than the Fragola hose in most cases.
Light, cheap, flexible, and NHRA approved.


As for the other Parker stuff, there is a parker store pretty local to me. I found it on the parker website. Its a heavy equipment supply store that sells it for equipment use. They have literally everything there, fittings and all. The hose is a lot cheaper through them but I don't think its TECHNICALLY the NHRA approved stuff, although you could probably slip it through tech since the Fragola stuff says Parker in the exempt list, and the hose says Parker on it as well.



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