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Inline Fuel Pump

This is a discussion on Inline Fuel Pump within the General Help forums, part of the LSx Technical Help Section category; I have a 98 LS1 and I was able to get an Inline Fuel Pump made by MSD if i ...

  1. #1
    Junior Member
    Join Date
    Oct 2006

    formula 98

    Inline Fuel Pump

    I have a 98 LS1 and I was able to get an Inline Fuel Pump made by MSD if i install this on my daily driver car will this affect the Intank Fuel pump cuz i dont want to mess that one up i know its expencive i need help i want to know if i should install it or not thanks

  2. #2
    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
    Join Date
    Aug 1999
    San Diego, Ca

    383 Procharged & N20 Vert

    An intank would be better.
    Black 1999 Blown Convertible A4
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    666.0 RWHP - 734.2 RWTQ - 125 Shot - P1

    Black 2009 Escalade Hybrid 4WD
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  3. #3
    Member Transam388's Avatar
    Join Date
    Dec 2005
    Cypress, TX

    98 Trans AM

    First off I would look at the case of "Do you really need it"? How much HP are you pushing? 10 to 1 your stock in tank pump is fine. If you are concerned, first put a fuel pressure tester on the fuel rail and see what it is producing in PSI. Normally a stock 98 should be at roughly 58 PSI. Unless you are seeing the PSI dropping I would not mess with it.
    98 T/A: HPE 5.3 Heads, 238/242 113 cam, Kooks 1 7/8 stepped LT headers, Custom Y pipe, Cut out, Borla, NW 90MM TB, FAST 90MM Intake, TB Bypass, Under Drive Power steering and Crank, 150 Dry NOS, Yella Terra rockers, 3400 TC, HPE tuning,

  4. #4
    Member danziger's Avatar
    Join Date
    Aug 2006
    Chesapeake, VA

    Le Mans Blue
    2004 Z16

    Why do you want to install it? Is your current fuel pump shot? Are you running a big shot of nitrous? If installed correctly, there will be no adverse effects on your regular pump. I have an inline and it is noisy, but effective for my power level...

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