Haddixj

iTrader: (1)

I am going to run the factory nylon tubing for my swap (LS1/T56) in my 67 Chevelle. I am running a tanks Inc setup with corvette filter I found those fitting numbers on the FAQ page but I havent been able to see one that is for 1/4" male NPT to either 5/16" or 3/8" nylon tubing. I plan on running the tubing from the tank to the filter and then to the engine. I have been looking online and will buy the tool for making the connections. So does anyone have any suggestions? I am going to measure and see if I can make the line from the F body I parted out fit but I have not been down that path yet. I am putting together an order from Summit so just trying to gather everything at once. Does anyone have any pics of this?
Thanks

S10xGN

iTrader: (11)

This stuff here is used on big-rig air brakes. There are cheaper fittings out there, I used to have a site BM'ed but cannot find it so just picked one at random...

dmracing

iTrader: (78)

Those are NOT for use with fluid.

gofastwclass

iTrader: (2)

The type fitting S10xGN posted will fail in a fuel use situation, I've seen it tried. Great for air lines though.

On my Tanks Inc setup, I ran a high pressure rubber line to a fitting I made with my Mastercool hydraulic flare tool to the filter, then a press in fitting on the Dorman plastic fuel line up to the rail with another press in fitting. I've done similar in the past on other projects and the Dorman line is cool - IF you can press fittings into it factory style (I made a tool) and make sure to mount it rigidly. It's super easy to work, but kinks easy and doesn't like sharp bends.

If you need to make sharper turns, I've also had really good luck using NiCopp line and flaring it with my hydraulic flare tool for the GM type flares. NiCopp is very easy to work for metal line and pretty inexpensive (about $55 for 25'). If you're interested look on Amazon for CNC625.

When using rigid line I like to have short runs of rubber line at places that may experience movement or vibration. I use SAE J30R9 which is high pressure fuel line designed for use with Ethanol or gas with working pressure of 100 PSI.

I use GM style quick disconnects everywhere because they are compact, OEM quality so they never leak, come in the proper sizes, available in straight, 45 and 90 degree options and tons more affordable than that AN mumbo jumbo.

tug686spd

iTrader: (11)

Edelmann Compression Fittings 168640, Edelmann Compression Fittings 168540, Dorman 800-159. These should be all you need. Cut the hard line so its out towards edge of tank so you can get to quick connect if need be.

Haddixj

iTrader: (1)

thanks I will look into the options posted and post back once I know what I am going to go with. The edelmann fittings look like they will do the trick on summits website it says for low and medium pressure so I just sent them an email to clarify what they are rated to. I would love to be able to find these in stainless and weld it up so there is not much risk of failure but the compression fittings will be fine.
Thank you for posting the info. I will update my build thread with pics and part numbers once I get everything in motion.

S10xGN

iTrader: (11)

Like I said, I had a page BM'ed but couldn't find it. You get the picture, there are other brands out there.

Haddixj

iTrader: (1)

heard back from Edelmann there fittings are rated to 200 PSI and are not acceptable to run with E85 because of the brass to E85 reaction. Just wanted to follow up on the post

just found this on MCmaster Carr http://www.mcmaster.com/#52245k535/=zkgdyr
it is a stainless fitting

33willys

iTrader: (1)

On my '39 Chevy I decided to go with the factory type nylon lines which also required the Dorman tool to put things together. I got the factory type fittings from the junkyard and ordered a roll of 3/8 and 5/16 nylon line (25 foot each). Using the tool to put the lines on is very easy and there are adapter fittings to put 90 degree fittings on with. Only problem I see is that the nylon line will not make bends very sharp but the local auto parts store sell 90 degree fittings. Bottom line is that I will not go back to "other" lines. The black nylon tends to blend in on the engine, is cheaper and fuel additives won't harm it.

33willys

iTrader: (1)

Here is a few pictures of the lines being installed.

tug686spd

iTrader: (11)

Those fittings are available in stainless for under $5 each just not at summit. Just google 1/4" npt to 3/8" compression and same for 5/16". I havent searched but im sure you can get the hard lines in stainless also from same supplier you find the stainless fittings..

Haddixj

iTrader: (1)

I was talking it over last night with my dad and he said he would be a little worried about a compression fitting and the possibilty of it backing off. That is a concern of mine so I was thinking of just getting the stainless fitting and TIG welding the tube end into it. But I am guessing that the fuel tube is galvanized so I would have to grind it off first. So again unsure of what to do.

Haddixj

iTrader: (1)

Found this fitting from Russell while going trough my tanks inc stuff part number
http://www.summitracing.com/parts/rus-640940


it is 6an male by 3/8 male connector. So my plan now it to get a 1/4NPT by 6 AN female adapter and weld it together and just have the one threaded connection at the tank.