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Thread: in-tank pump

  1. #1
    LT1 specialist steveo's Avatar
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    in-tank pump

    ~350hp smallblock LT1 daily driver... stock return line setup.

    what are some good cheap in-tank fuel pump alternatives?

    my walbro is a noisy peice of shit i can't tolerate, and i've heard brand new ones that were also too loud. i also dont think i really require that much flow.

    i can't afford a $170 aeromotive

    what's a good compromise?

    i have a homemade relay kit with gigantic wiring, power draw is not an issue.

  2. #2
    RIP EagleMark's Avatar
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    Do you need more then a stock AC/Delco (quiet) pump?

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  3. #3
    Super Moderator dave w's Avatar
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    Quote Originally Posted by steveo View Post
    ~350hp smallblock LT1 daily driver... stock return line setup.

    what are some good cheap in-tank fuel pump alternatives?

    my walbro is a noisy peice of shit i can't tolerate, and i've heard brand new ones that were also too loud. i also dont think i really require that much flow.

    i can't afford a $170 aeromotive

    what's a good compromise?

    i have a homemade relay kit with gigantic wiring, power draw is not an issue.
    Rock Auto has the DELPHI Part # HP10033 priced at 135.79, includes sender.

    Rock Auto has the Airtex Part # E3908 priced at $112.79, sender???.

    The last time I needed an EFI fuel pump I purchased a Carter product.

    I don't know about the noise of either the Airtex or Delphi parts.

    dave w
    Last edited by dave w; 01-31-2014 at 07:51 AM.

  4. #4
    LT1 specialist steveo's Avatar
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    Quote Originally Posted by EagleMark View Post
    Do you need more then a stock AC/Delco (quiet) pump?
    i doubt it, i dont even come close to maxing out stock injectors..

    maybe i should just try to find a stock pump. i was hoping to find something under a hundred bucks that didnt suck, and wasnt noisy; but at the same time, if im gonna blow $135 i might as well just spend a bit more and get an aeromotive i guess.. i hear they're awesome

  5. #5
    RIP EagleMark's Avatar
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    There's two designs of electric fuel pumps. Rotor or vane drive, this is the noisier and what Walbro and most aftermarket Carter pumps are. Then the Turbine or impeller drive which is what AC/Delco is and the quieter of the two.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  6. #6
    Super Moderator Six_Shooter's Avatar
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    The last fuel pump I replaced, which was last week, was over $400, and I did the labour. :facepalm: It's a "Fuel module" but still, way over priced.

    Where is your Walbro mounted now? I have one in my Datsun, that is externally mounted and while I can hear, if I listen, it's not terribly loud. Maybe you just need more isolation?
    The man who says something is impossible, is usually interrupted by the man doing it.

  7. #7
    Fuel Injected!
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    i am running the walbro in my camino and it isn't that loud to me but then the flowmasters may be masking it lol.

  8. #8
    Fuel Injected! JeepsAndGuns's Avatar
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    Quote Originally Posted by EagleMark View Post
    There's two designs of electric fuel pumps. Rotor or vane drive, this is the noisier and what Walbro and most aftermarket Carter pumps are. Then the Turbine or impeller drive which is what AC/Delco is and the quieter of the two.
    In my 93 wrangler, the factory bosch pump went out years ago. I replaced it with all I could find local at the time (a carter) and it was stupid noisy. I could hear it over my loud exhaust. A few weeks later a found a bosch turbine replacement, installed it and I have not heard it since. Its super quiet.
    If you want a quiet pump, I highly reccomend a turbine pump. The super noisy carter pump was a vane pump.
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

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  9. #9
    Fuel Injected! EDZIP's Avatar
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    Don't have any experience with that specific pump but I made a mounting platform with (5) of these rubber cushions...works for me with an "external pump" anyway.

    Last edited by EDZIP; 01-31-2014 at 04:10 PM.

  10. #10
    RIP EagleMark's Avatar
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    Those are what I use to external mount a pump on a frame rail. If not? Well the frame rail becomes a speaker/amplifier from front to rear on boxed frames.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  11. #11
    LT1 specialist steveo's Avatar
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    my walbro is just hose clamped to where the stock pump was.

    it's weird actually, the fuller the tank is, the louder the thing gets.

    either way, i was thinking it was going to die, then i heard a few other walbros in peoples cars and they were equally loud.

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