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  1. #1

    Need to bring rpms down

    need to get my rpms down,im way past power point and im wasting it.my gp 1300 is turning 7500.what can I do?


  2. #2
    Since you have a GP1300R you already have the 85mm nozzle so I would recommend re-pitching/swap your impeller to something taller. Since we don't know if you are hitting the limiter, what mod you have, or what impeller you currently have I don't think you will get a set recommendation on impeller until you post that information.

  3. #3
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by 05 green gp View Post
    need to get my rpms down,im way past power point and im wasting it.my gp 1300 is turning 7500.what can I do?
    If you still want to keep your same impeller all that is needed is to depitch 1 degree less on the trailing edge.

  4. #4
    mods I have are dplate,chip,ejk,oil block off,free flow,4 degree keyway,head milled at 135psi

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