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  1. #1
    R X P X's Avatar
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    Eastside powersports porting and cam

    I am adding eastside powersports stage 2 cam and ported head, commander v with wideband 2, and lucky 13 to my 2013 RXPX 260....I currently turn 8700-8800 rpm and run 82-83 mph gps..depending on the weather of course. I have a speedfreeks racing impeller that is bent to12.5/17.5.....what pitch impeller will I need for this setup? and what mph should I gain from the additions? anyone have a similar setup?


    2013 rxpx 260


  2. #2
    JFizzleJR's Avatar
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    What is your target max RPM?

    Quote Originally Posted by R X P X View Post
    I am adding eastside powersports stage 2 cam and ported head, commander v with wideband 2, and lucky 13 to my 2013 RXPX 260....I currently turn 8700-8800 rpm and run 82-83 mph gps..depending on the weather of course. I have a speedfreeks racing impeller that is bent to12.5/17.5.....what pitch impeller will I need for this setup? and what mph should I gain from the additions? anyone have a similar setup?


    2013 rxpx 260

  3. #3
    R X P X's Avatar
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    I want to keep it at 8700-8800 rpm


    Quote Originally Posted by JFizzleJR View Post
    What is your target max RPM?

  4. #4
    www.eastcoastpwc.net Scott's Avatar
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    82.5-83.1

  5. #5
    Eastside Powersports Slow 91's Avatar
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    Heres a good thread on the camshaft gains on a stock engine/head.Sanfish is very thorough when it comes to testing and documentation.

    http://www.greenhulk.net/forums/showthread.php?t=227330

    Cylinder head porting gains are around 250rpm with a 137 wheel. The bigger charger/turbo the more the gains are. The CNC porting really really shines in the midrange and acceleration.

  6. #6
    R X P X's Avatar
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    can you explain how you come up with those gains? got me thinking....maybe I would be better off modding my snowblower

    Quote Originally Posted by Scott View Post
    82.5-83.1

  7. #7
    R X P X's Avatar
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    thanks man! it was a good read. thanks for providing tested information

    Quote Originally Posted by Slow 91 View Post
    Heres a good thread on the camshaft gains on a stock engine/head.Sanfish is very thorough when it comes to testing and documentation.

    http://www.greenhulk.net/forums/showthread.php?t=227330

    Cylinder head porting gains are around 250rpm with a 137 wheel. The bigger charger/turbo the more the gains are. The CNC porting really really shines in the midrange and acceleration.

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