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  1. #1

    impeller info gpr1300

    with mild mods. grate and ride plate upgrade, with no engine mods what pitch should i look at getting 13/19 13/20 on riva set back,? 14/20

  2. #2
    Chrisrokc's Avatar
    Join Date
    Apr 2006
    Oklahoma City, OK
    I would hold off on a impeller till you had motor mods. Then go with a 2005+ pump upgrade and 14/20 dy.

  3. #3
    GPHOTROD's Avatar
    Join Date
    Apr 2006
    Dearborn Heights, Mich
    A stock 03 with no engine mods, a Riva 13/20 setback will work fine but you need to put on an 87mm pump nozzle. If you plan on doing engine or pump changes, I would hold off on the impeller because it will need a different impeller and there not cheap.
    Last edited by GPHOTROD; 08-10-2007 at 10:25 PM.

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