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  • #1

    LS1 Fuel pumps?

    Hey guys- I just installed my FMU, and no matter what ratio I use, I cant get my presure above about 60... is this because our pump can't support any more flow/pressure after this point?

    I know that I'm running lean now, because i get up to 60 after the first 1 or 2 psi, and then the fuel pressure stays the same.

    So, the new question: can I use LS1 in-tank fuel pumps?


    [ October 12, 2003: Message edited by: Riles ]

    [ October 12, 2003: Message edited by: Riles ]</p>
    All gone :(<br />Best ET ever: 14.3 (I think)<br />----------------------------<br />Check out my site for exhaust clips, burnouts, and pictures, and the supercharger throttle body mod.<br /><a href=\"http://www.geocities.com/net_addict/index.html\" target=\"_blank\">Click on the Firebird</a>
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  • #2
    Think it could be the FMU itself not working right? (Any chance you could test / diagnose it?). Check to make sure you have a good source, and that it's not leaking. And if you're fuel pump is infact running out, I just ran into a nice install guide for doing an in-tank with dremeling an access door, that seems quite quite simple compared to dropping the rear / tank, imho.
    -Rob
    <b>97 Camaro 3.8L M5</b><br />Car for sale<a href=\"http://terpmotors.com\" target=\"_blank\">terpmotors.com</a> Terrapin Motorsports! UMCP

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    • #3
      wicked...HOOK ME UP WITH THAT DREMEL INSTALL !!!

      PLEASE!
      96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

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      • #4
        http://www.geocities.com/formulapower2/fuelpump.html

        So beautiful I could cry. [img]smile.gif[/img] [img]graemlins/crybaby.gif[/img]
        <b>97 Camaro 3.8L M5</b><br />Car for sale<a href=\"http://terpmotors.com\" target=\"_blank\">terpmotors.com</a> Terrapin Motorsports! UMCP

        Comment

        • #5
          thanks man.. your a 1000 dollar saver
          96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

          Comment

          • #6
            Nevermind, I found out what I need to know about fuel pumps. I am leaving this here so that I dont lose the link for the install guide.

            [ October 15, 2003: Message edited by: Riles ]</p>
            All gone :(<br />Best ET ever: 14.3 (I think)<br />----------------------------<br />Check out my site for exhaust clips, burnouts, and pictures, and the supercharger throttle body mod.<br /><a href=\"http://www.geocities.com/net_addict/index.html\" target=\"_blank\">Click on the Firebird</a>

            Comment

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