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Thread: Expert opinion please... EFI setup

  1. #1
    Senior Member sethmark's Avatar
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    Expert opinion please... EFI setup

    Anyone have an opinion of this short AN hose and bulkhead connector? It packaged nicely, but for whatever reason bothers me.

    A57A1C65-F124-4DB4-9343-9EAFEACF2FF8.jpg
    #1133 33 Hot rod

    MkI.IV 2643k

  2. #2
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    That short hose didn't come in my kit, did that come with your fuel injection kit?
    I've made and purchased plenty of AN3, 4, and 6 hoses, never had a problem with any of them.
    '33 Hotrod, #1047, delivered on 2/27/18, go cart on 9/24/18.
    LS3 w/4L65e, Lokar shifter, Electric PS, Vintage AC/Heat/Def, 8.8" 3.55
    TorqThrust II Wheels w/Toyo Proxy T1 Sport Tires, F 245/45ZR17 R 295/35ZR18

  3. #3
    Senior Member sethmark's Avatar
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    No. I tossed most of their kit and made my own... I opted to run the Corvette filter/regulator and mount everything behind the seat out of the elements. I anticipate that Walbro pump being noisy, so I’ll need to dynamat the inside of the waterfall.

    The short hose and bulkhead fitting is my doing.
    Last edited by sethmark; 08-12-2019 at 08:59 PM.
    #1133 33 Hot rod

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  4. #4
    Senior Member FF33rod's Avatar
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    Don't see why it should be a problem. You'll find out soon enough when the system gets pressurized.
    Gen 1 '33 Hot Rod #1104
    347 with Holley Sniper & Hyperspark, TKO600, hydraulic clutch, IRS, Foose 18" Wheels, 245 & 315 BF Goodrich G-Force Rival S tires, DRL, power windows, roadster & hard top, Digital Guard Dog Ignition

  5. #5
    Seasoned Citizen NAZ's Avatar
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    I don't expect you will have any issues with that short length of hose. Very neat installation. If you want to keep everything AN in the future you can go with these style filters with replaceable elements: https://www.summitracing.com/parts/s...123r/overview/
    33 Hot Rod Super Pro Drag Racer
    33 HR NHRA Cert Roll Cage Build

  6. #6
    Senior Member sethmark's Avatar
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    The prefilter is that style. I figured for the filter/ regulator an off the shelf part would make roadside repairs painless.
    #1133 33 Hot rod

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  7. #7
    Senior Member TxMike64's Avatar
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    I think it looks great! Just so you have enough slack and it's flexible enough to replace the filter...
    -- Mike --
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    TxM Garage

  8. #8
    Seasoned Citizen NAZ's Avatar
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    Seth, that small cylindrical item in the suction line looked like a check valve -- a popular item on race cars to keep from emptying your tank in a crash that rips the fuel line loose. If that's a filter I''ll leave you with something to ponder in case you have any fuel system related issues that are hard to troubleshoot. Running a pre-filter in a horizontal attitude tends to trap air in the upper section. That air can cause pump suction issues and cavitation. I've seen this so bad that a pump would loose its prime. Yours is a smaller diameter so may not be an issue, the larger diameter ones trap a lot of air that eventually burps into the suction of the pump. It's a best practice to run pre-filters in the vertical orientation to prevent air entrapment.
    33 Hot Rod Super Pro Drag Racer
    33 HR NHRA Cert Roll Cage Build

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  10. #9
    Senior Member sethmark's Avatar
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    Thank you for the heads up. I will keep it in mind if I run into issues. I’ve use this filter in the past with good success, but not dead level.
    #1133 33 Hot rod

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  11. #10
    BluePrintEngines's Avatar
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    A good fuel filter of the proper size is crucial. looks like you have an earls on there, so good.

    Another thing is that Corvette filter MUST be the GM or a WIX brand. The parts store versions are known to pressure creep.

    Few things i have picked up in my experience over the years.

    tucked in there that nice, you don't want to have to be changing them anytime soon!
    Check out our crate engine offerings at www.factoryfiveengines.com
    Give us a call at 1.800.483.4263

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