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Thread: L84 fuel limitations 2020 Sierra anyone know the limits

  1. #1

    L84 fuel limitations 2020 Sierra anyone know the limits

    Anyone have any ideas on the stock lpfp, hpfp, and injectors limitations on these new trucks fuel system. If anyone has maxed out a system around what hp was it crank or wheel?
    2019 Procharged 5.3, KOOKS 1 7/8 long tubes, full true dual 3? magnaflow with built in x pipe, L86 intake, and throttle body, with a shade tree tune and a F**king locked T93 trans "she runs good though" plugs look nice lol

  2. #2
    i've "HEARD" stock set up is able to handle 450hp, e85 will be much less...

  3. #3
    Mines handling 510 at the moment but I’m pretty positive I’m at the end of its limits
    2019 Procharged 5.3, KOOKS 1 7/8 long tubes, full true dual 3? magnaflow with built in x pipe, L86 intake, and throttle body, with a shade tree tune and a F**king locked T93 trans "she runs good though" plugs look nice lol