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  1. #1

    Injector upgrade?

    I have an 06 RXT with a Riva Gen II wheel, Riva air intake, and upgraded exhaust. I was considering upgrading my fuel injectors next. I have seen 3 different sizes, 42, 48, and 50.
    Which of these can I run without having to upgrade the ECU??

  2. #2

    Join Date
    Jul 2007
    Corpus Christi, TX
    You don't need to change injectors unless you need to change the fuel delivered to the engine. It is not as-if one size is better than the others, it is which size do you need for your modifications.

    With a Gen II wheel, the stock injectors are good. If you decide to add a larger S/C or a fizzle intercooler, you will need to change them.

    Check out this post for lots of info:

  3. #3
    MSRXP's Avatar
    Join Date
    Sep 2010
    Central MS
    Good for now.

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