Fuel issues
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Fuel issues

  1. #1
    Senior Member 2savage4you's Avatar
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    Default Fuel issues

    Just when you think you are going in the right direction and find out you should have left it alone..........
    Ok i went from having to much pressure and a good running boat to not enough pressure and a boat that runs like shit....
    I installed a electric pump, a Holley red to be exact. Im running two tanks into a water fuel seperator and then into my fuel pump and into the carb.
    Fuel pump mounted on the transom.

    Fuel line running to carb with a inline filter all -8 fittings and hose.

    My fuel pressure :screwy:


    So now i don't know if i should go to a Blue pump or just go with my Mech Edelbrock and add a regulator.

    I know this freakin pump is LOUD and annoyin

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  3. #2
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    Can you bypass the water seperated to see if that's the problem?

  4. #3
    Senior Member cbcp's Avatar
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    So do you have a shut off on one or both of the tanks, so essentially your sucking from both tanks at the same time? Or did I miss that you had a shut off on one of the sides? If you are sucking from both tanks at the same time that might be the issue.

    Also what about a regulator?? How do you regulate the pressure currently? Did I miss that in your post?

    So lets say you got a massive pump to give you a shit load of fuel pressure how would you regulate that pressure to the accurate setting needed for your application?

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    Senior Member 2savage4you's Avatar
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    Quote Originally Posted by Pw_Tony View Post
    Can you bypass the water seperated to see if that's the problem?

    Tony it worked great with the mech, and im going back to it.. im gonna add a reg though.. Should have done that to begin with but you know me

  7. #5
    Senior Member 2savage4you's Avatar
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    Quote Originally Posted by cbcp View Post
    So do you have a shut off on one or both of the tanks, so essentially your sucking from both tanks at the same time? Or did I miss that you had a shut off on one of the sides?

    Also what about a regulator?? How do you regulate the pressure currently? Did I miss that in your post?

    So lets say you got a massive pump to give you a shit load of fuel pressure how would you regulate that pressure to the accurate setting need for your application?

    the reg was my whole problem. My mech pump put out to much pressure and i didnt know it would.. I had everything plumbed already and did not want to re'plumb with a reg.

    So i went and bought a Holley pump that said it puts out 7 psi no reg needed.....

    Im going back to my Mech pump and adding a reg and it should be just fine....

    this is me doing shit 3 or 4 times before i realize..... DONT TOUCH IT


    Anybody need a electric pump ? its for sale 1/2 price

  8. #6
    Senior Member nick's Avatar
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    Hey Steve I still have that Holley reg I posted on SCJB a week or so ago if you need one, I'll sell it to you. Don't go buy one from a shop, I need to get this one off the shelf in my garage????

  9. #7
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    Put yer old pump back on and shitcan the gauge and lets go

    Maybe try yer new gauge w/ old pump. If it's not pushing fuel past the needle and seat, lets roll.

  10. #8
    Senior Member 2savage4you's Avatar
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    Quote Originally Posted by Blown Sanger View Post
    Put yer old pump back on and shitcan the gauge and lets go

    Maybe try yer new gauge w/ old pump. If it's not pushing fuel past the needle and seat, lets roll.

    Old pump is going back on, and i like my new gauge I was hoping to get her wet tomorrow, but shit happens.....

    its funny, when i ran it with the mech pump she would idle with no problem, throttle seemed to be crisp and sounded like a true ford killer

    I bought some 84 jets to replace the 91 prim and 94 sec..... But now im thinking , JUST LEAVE IT ALONE

    Terry this is really frustrating the phuk out of me

  11. #9

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    in my experience those red holleys suck. had a 350 hp 350 and it couldnt keep up. Floscan said it drew 23 gph and the pump couldnt keep up. I trashed it and run only mechanical pumps from then on.

  12. #10
    Boat Nut sleekcrafter's Avatar
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    I've never had any luck with the red or blue Holley fuel pumps, the magnets came loose most of the time. Nothing wrong with a good mechanical pump.
    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


  13. #11
    Senior Member Boat 405's Avatar
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    Most electric pumps don't like to dead head much and from my experience it won't read true fuel pressure unless fuel is flowing. The carters are nice because the incoming fuel flows around the motor assembly and cools it. The holleys don't have this feature. I ran a small bypass line -4 an back to the fuel tank and haven't had any fuel pressure problems since. Now there is fuel flowing all the time. The old holley pumps are very good. The newer ones are so so and I heard of lots of failures. The standard holley regulators are good too. You can get carried away trying to solve the deadheading problem. I deadhead a carter electric pump in my cruiser and the fuel pressure is all over the place, when I'm idleing, I have yet to have any problems with driveability and the plugs always look good.
    Boat 405.

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