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Thread: Fuel Lines & Fittings

  1. #1
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    Default Fuel Lines & Fittings

    I'm ready to do the plumbing for my Sniper EFI and have lots of questions. I purchased a Sniper EFI fuel tank. I want to use my existing 3/8" steel line that I made going from the tank to the engine bay from my carb setup, which will be more than adequate. But how do I connect the steel line to an EFI hose to the gas tank? Specific parts would be great if possible.

    I've read there are some double ferrule fittings that can do this. I've also read about EFI nylon line with push-lock. I've read about using 37° flares with an fittings, which would require me purchasing a adapter for my Eastwood flare tool. I've read about using rubber EFI hose, but I don't want to do that because I like to race at the track. I'd really like to use my existing steel feed line, and I will make a return line, but how did you guys run your lines and what kind of fittings did you use? Thanks, Rob.

  2. #2
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    Quote Originally Posted by RPnova View Post
    But how do I connect the steel line to an EFI hose to the gas tank? Specific parts would be great if possible.
    https://www.holley.com/products/plum...ts/AT165006ERL (Earls -6AN Male To 3/8" Tube Adapter)
    https://www.holley.com/products/plum...ts/AT165106ERL (Earls -6AN Female To 3/8" Tube Adapter)
    https://www.holley.com/products/plum...ts/AT165056ERL (Earls -6AN Male To 5/16" Tube Adapter)
    https://www.holley.com/products/plum...ts/AT165156ERL (Earls -6AN Female To 5/16" Tube Adapter)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  3. #3
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    Sorry if my post is a dumb question, too much reading on this makes my brain go dumb.
    In the description it says low pressure application. Is that OK? I just don't want a fire or burst fuel every where.
    I've been reading & reading about EFI hoses & stuff, and in 1 minute you tell me exactly what I need. So funny.

  4. #4
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    Quote Originally Posted by RPnova View Post
    In the description it says low pressure application. Is that OK? I just don't want a fire or burst fuel every where.
    Under the "Specs" tab, it states 250 Max PSI. It just can't be used for power steering, nitrous oxide, or other high pressure application.

    I've been reading & reading about EFI hoses & stuff, and in 1 minute you tell me exactly what I need. So funny.
    You're welcome.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  5. #5
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    I swore I clicked on "Specs" and nothing happened. Oh well, the information is there.
    I hate asking asking all these questions. Which adapter would you use for the EFI rubber fuel hose to connect to the above fitting? I was gonna make my return line 3/8", but 5/16" should work.

  6. #6
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    Quote Originally Posted by RPnova View Post
    Which adapter would you use for the EFI rubber fuel hose to connect to the above fitting?
    The above fittings are for a 5/16" or 3/8" hard fuel line to -6AN. For 5/16" or 3/8" rubber fuel hose to a -6AN fitting, use one of these:
    https://www.holley.com/products/plum...ard_hose_ends/ (Earl's 5/16" & 3/8" Hose Barb To -6AN Female Only)
    https://www.summitracing.com/search/...4%2B4294947311 (Summit Racing Hose Barb To -6AN Male & Female)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  7. #7
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    So awesome, thank you!!! This will solve all my fitting needs, I think. Unless I need two fittings coming from the Sniper unit. I can't remember, but I think I do. But I think I have a handle on that.
    Last question I promise. Is the Sniper hose in post #1 for EFI? The "Specs" is not there. I would like a steel braided hose because at the track, they say you can't have more than 12 inches of rubber hose for your car.

  8. #8
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    Quote Originally Posted by RPnova View Post
    So awesome, thank you!!! This will solve all my fitting needs, I think. Unless I need two fittings coming from the Sniper unit. I can't remember, but I think I do. But I think I have a handle on that.
    You're welcome. The Sniper EFI throttle body comes with two male -6AN x 9/16-18 o-ring port fittings.
    http://documents.holley.com/199r11031r.pdf (Holley Sniper EFI Instruction Manual - "Fuel System Connections", Page 11)
    https://forums.holley.com/showthread...8356#post88356 (Holley Sniper EFI Fuel Pressure Tester/Gauge)

    Last question I promise. Is the Sniper hose in post #1 for EFI? The "Specs" is not there. I would like a steel braided hose because at the track, they say you can't have more than 12 inches of rubber hose for your car.
    Yes, it's compatible with gasoline. Under the "Specs" tab, it states it's compatible with pump gasoline & race gasoline. Use the Sniper hose ends (LINK).
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  9. #9
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    I was more looking towards a max psi rating in the Specs tab, but thank you for all your help. And I will use those hose end links, and the other links you specified.
    You really straightened me out. I know what I need to do now, and what parts I need to make my car safe and complete my fuel system. Thanks for putting up links to products and taking the time to answer my questions.

  10. #10
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    Quote Originally Posted by RPnova View Post
    I was more looking towards a max psi rating in the Specs tab, but thank you for all your help. And I will use those hose end links, and the other links you specified.
    I guess you'll have to contact Holley Tech Service (LINK) for that max psi specification.
    http://documents.holley.com/earls_guide.pdf (Earl's Hose & Fitting Compatibility Guide)
    Personally, I only use Earl's Speed-Flex or UltraPro SS PTFE (Teflon) inner lined stainless steel braided type of hose for almost everything.
    https://forums.holley.com/showthread...1212#post11212 (Related Hose & Fitting Information Thread)

    You really straightened me out. I know what I need to do now, and what parts I need to make my car safe and complete my fuel system. Thanks for putting up links to products and taking the time to answer my questions.
    You're welcome.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

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