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  1. #1

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    Rxp rpm question

    stage 1 w/ riva parts and just installed x-charger & 42lb injectors...left on the 14/19R prop and rpms are 8200-8220......this good? I thought most have the change to steeper prop because they are all over the rev limiter, I seem to be holding those RPM's, any thoughts? thanks


  2. #2
    JFizzleJR's Avatar
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    personally, I would like to get it around 8160-8180 just to make sure it's not on the limiter. mostly because 8220 is close to the limiter and you won't notice you're on it. your engine will notice though maybe grab an AFR setup for a quick test instead to confirm...

  3. #3

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    so I put an air filter on the intake to try and bring rpm's down a little since before I was only running a screen...but still holding 8200 rpm, filter didnt drop rpms...any ideas besides changing to steaper pitch prop? possible to pitch the 14/19 a little?

  4. #4
    Moderator Snoman's Avatar
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    I would put 1.25 MM into the prop...That should put you right around 8120-8140....8180 IMO is to close to the soft limiter and you may start to lose performance...

  5. #5

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    15/20 prop ? thoughts I think I will just get rid of the 14/19...although with the 15/20 I feel like rpms will be low.

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