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  1. #1

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    pitching impeller/ AFR guage question

    I have a 2006 RXP with stage 3 and I am looking for advise on repitching my impeller. I have a 83 ring and the RPM's are at 8600 with that ring, I am wanting to put the 81 ring back in and I am wanting to get the RPM's to 8580 or in that range as before with the 81 ring in my RPM's were only at 8350. How many mm would I need to bend the blades?
    And then I was wanting to know on the AFR guage what do people usually run at? I have heard 11.7 or 11.9 is good, just would like other peoples thoughts.

    Thanks for everyones input.


  2. #2
    MSRXP's Avatar
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    Quote Originally Posted by frogurt View Post
    I have a 2006 RXP with stage 3 and I am looking for advise on repitching my impeller. I have a 83 ring and the RPM's are at 8600 with that ring, I am wanting to put the 81 ring back in and I am wanting to get the RPM's to 8580 or in that range as before with the 81 ring in my RPM's were only at 8350. How many mm would I need to bend the blades?
    And then I was wanting to know on the AFR guage what do people usually run at? I have heard 11.7 or 11.9 is good, just would like other peoples thoughts.

    Thanks for everyones input.
    For best results you need the AFR between 12.0 and 12.3. You will get your best results and performance in that range. Also, why are you wanting to go to the 81mm venturri? What are you hoping to gain?

  3. #3
    JFizzleJR's Avatar
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    Quote Originally Posted by MSRXP View Post
    Also, why are you wanting to go to the 81mm venturri? What are you hoping to gain?
    Uhh...speed?

  4. #4

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    Quote Originally Posted by JFizzleJR View Post
    Uhh...speed?

    That is right I am wanting to get top MPH!!

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