Electic Fuel Pump in Daytona???
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Electic Fuel Pump in Daytona???

  1. #1
    Half a bubble off jrork's Avatar
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    Default Electic Fuel Pump in Daytona???

    Okay guys. Here's my problem. I'm deep into my project and have 2 - 25 gallon fuel tanks. My motor is based on a Gen VI 502 so therefore no mechanical fuel pump provision

    I'm looking for idea of ways to mount my electric fuel pump low enough and back far enough that it wont struggle to get fuel and keep it's prime.

    To mount it low on the transom is challenging because of the pump and tunnels.

    The only obvious option that I've come up with is to place a pump in each sponson directly behind the fuel tanks so I have a total of 2 fuel pumps BUT, that seems overkill for my needs.

    I would prefer to continue to pull off the top of the tank since this is just a family rig and not a race deal.

    The pump that I have that has served me well in my other boat is a Holley Billet Black HP150. I could add another so each tank has it's own pump but like I mentioned, that seems like overkill for my needs. Again, this is not a race deal and I'm looking for reliabilty first and foremost.

    Thanks very much guys.........john


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    Senior Member Fireguy's Avatar
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    I had an electric mounted on the right side, bottom, transom area. I then used a small, electric pump to transfer from the left tank. It was mounted on a toggle switch and I would transfer fuel to the right as needed. I thought about using a float switch off the tank to activate the transfer pump. I now switched to a mechanical.
    I have a bottom feed on the right tank, and I dont have tank level gauges (as of now).

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    Senior Member Fonz69's Avatar
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    I had a daytona and rigged a electric pump on the stringer toward the back and ran a #an10 from the pump to a t with equal lines going to each tank. It worked good the -10 line just held a little more fuel in the line on those WOT times but I did have to use a return style regulator to stop burning up pumps after that worked great. You could add a electric fuel valve that would let you switch tanks if you wanted to I had one later on and it worked great for one side pump gas and the other tank race gas.
    If this is a "family" boat I would look into a full cover around that blower belt for sure!

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    Pops..... I run a single Aeromotive Eliminator pump mounted on the inside of the drivers stringer back next to the suction housing, works awesome and have never had a problem pulling fuel from both tanks.

    Punk kid

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    Senior Member raysoncraft1's Avatar
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    Default 21 fuel delivery

    I took the tanks out and had a -10 fitting welded on the bottom so it does not feed from the top. And made a bracket to mount the fuel pump as low as i can. areomotive fuel pump elec.

  8. #6
    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by raysoncraft1 View Post
    I took the tanks out and had a -10 fitting welded on the bottom so it does not feed from the top. And made a bracket to mount the fuel pump as low as i can. areomotive fuel pump elec.
    Unfortunately... ..I am sure that works like a charm...but I think they are plumbed that way(top feed) for safety reasons.

    Boat is lookin great John....tunnel fever is in the air.
    Another Hot Boat refugee

  9. #7
    Senior Member raysoncraft1's Avatar
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    Default 21 tanks

    What saftey reason would that be?

  10. #8
    "Try it Now!" Tahiti Boss21's Avatar
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    rork, i have an aeromotive mounted to the passenger side rear stringer, right near the transom..sits on top of the tunnel. It has not had any problems for a couple hears now.
    1992 Eliminator Daytona 21'

  11. #9
    Senior Member Fonz69's Avatar
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    Quote Originally Posted by raysoncraft1 View Post
    What saftey reason would that be?
    Well just taking a guess but if that fitting on the bottom ever failed you would have allot of fuel in the bilge real quick

  12. #10
    Senior Member raysoncraft1's Avatar
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    Quote Originally Posted by Fonz69 View Post
    Well just taking a guess but if that fitting on the bottom ever failed you would have allot of fuel in the bilge real quick
    Thats why you have a bilge pump.

  13. #11
    Senior Member jetboatperformance's Avatar
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    John might be tough to find a spot agreed pretty cramped but maybe some room in front on the engine house bulkhead low and at or below tank level also filters (type) are critical as I'm sure you know ? are you set on that Holley pump (just curious) not familiar with it guessing its designed to "dead head" ? Personally used Holleys for more years than I'd like to admit to but had 3 failures last two years to push me to Aeromotive (with fuel return systems when possible)

  14. #12
    Half a bubble off jrork's Avatar
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    Thanks for the ideas guys. Sounds like it may not be too big of a problem after all.

    Fonz, thanks for the warning about the belt cover. I agree and have already drawn up a pattern to have welded up. In fact, if you look close, the front pattern is still attached in the picture.

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    Senior Member sandeggo's Avatar
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    John don't mind the mess, this is when I was tearing down my project. Both tanks feed from the top to a T that is mounted on the intake. You can also see the pump.

  16. #14
    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by sandeggo View Post
    John don't mind the mess, this is when I was tearing down my project. Both tanks feed from the top to a T that is mounted on the intake. You can also see the pump.
    If he is having the same issues I did....my problem before I slid the motor fwd 5"...is that it is just a tight mofo....I bet he has 4-5" from the back of the rear plate to the transom. It makes it unpleasant at beast to try and wrench on anything transom mounted....and the tt headers take up that much more room....and make it that much tuffer. I didnt even respond with where I had my electric because it was retarded...it was mounted to the back side of my back seat.lol I could figure out a stop for the damn thing either. In regards to the tanks drawing from the bottom...I heard that was against regs. I could be wrong....wouldnt be the 1st time...wont be the last. Seems like I remember Tom at jbp with a story about a boat full of gas on one he picked up. To each his own.
    Rock on John and Ian
    Another Hot Boat refugee

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