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Thread: 44lbs/hr injectors?

  1. #1
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    Cool

    How much power can these support? Is 500rw on their ragged edge?
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  2. #2
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    Those will support way more than 500 hp especially if they are rated 44lb at 43PSI of fuel instead of 58PSI.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
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    Red face

    <div class='quotetop'>QUOTE(RedHeartbeat &#064; May 31 2007, 12&#58;37 PM) [snapback]95369[/snapback]</div>
    Those will support way more than 500 hp especially if they are rated 44lb at 43PSI of fuel instead of 58PSI.
    [/b]


    They&#39;re the 58psi rated Delphi ones.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  4. #4
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    According to the Endres book, Fuel amount required = HP times approximately .500 F=HP*.5 so 500HP requires 250 lbs of fuel flow per hour. Divide that by 8 and you need just over 30 lph. If using a power adder use .6 instead of .5 in the formula.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #5
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    Cool

    So the 44s will do 352lbs/hr? But that&#39;s at 100% IDC, right?

    500x0.6 = 300...
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  6. #6
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    A Lucas 42.5 injector will supply fuel for 786hp at 100% and 629 at 80% IDC using the .5 value(naturally aspirated). The injector is truly a 49.1 lb unit.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  7. #7
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    Cool

    Crap, these are the Delphi stubby - http://www.racetronix.com/Manuals/In...ultec2_inj.pdf

    It&#39;s in an FI app, so 0.6 is what I&#39;ll use for BSFC.

    Any ideas what&#39;s avail to fit the stock truck harness/rail?
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  8. #8
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    Denton Texas
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    How about those... http://www.nelsonperformance.com/products.htm#fuel

    We have a solution for you&#33;

    Lucas Injectors - direct swap for LS1 engines.
    42lb @ 43.5 psi , 48lb @ 58psi
    These will also fit the 4.8/5.3/6.0L engines in 99+ GM Trucks with our installation kit.
    The kit includes LS1 injector clips, heat shrink, solder and butt connectors, and 3/8" spacers to raise the fuel rail.
    Price: &#036;300
    Installation kit for GM Trucks: &#036;32
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  9. #9
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    Cool

    hrm... any resistance issues with the soldering of the new terminal ends?
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  10. #10
    Join Date
    Nov 2003
    Location
    Denton Texas
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    Further down the page are direct swap truck injectors.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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