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  1. #1
    Mod less, ride more! troyheb's Avatar
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    Unhappy X Charger Upgrade

    Ok, so the weather finally stopped raining and I get out to test the Riva X charger Upgrade and 50's that I installed.

    Here are the stats

    08 RXPX, 4" air, FA removed, R&D grate, 83mm nozzle, wedge, ride plate modded, 15/22 modded by Speedfreaks. Top speed 77.4

    Added the X charger upgrade and 50's. Top speed 72.8

    I had my exhaust manifold drilled and tapped for AFR.
    Afr today

    idle = 13.5
    mid = 12.6
    around 6500 rpm = 11.5
    6500 to wot = 10.8
    When I saw the 10.8 I did not hold it there long the ski might have been faster but did not want to chance it. 10.8 is to lean right?

    The power is there. There is a slight bog when I stab it from an idle, but it pulls much harder than before. I can feel it pull harder all through to top end. I have the Rude fuel controller that I will put back on and see if I can get it to connect to my laptop and try to add some fuel to the wot.


  2. #2
    Orlando Shark's Avatar
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    Sounds like you are running Rich, lower your RRFPR or try out 48's.

    And how the AFR's work is: The lower the # the richer you are
    The Higher the # the leaner you are.

  3. #3
    Orlando Shark's Avatar
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    BTW, you want to be around 11.9 AFR at WOT.

  4. #4
    Mod less, ride more! troyheb's Avatar
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    Yea, duh. I feel like a dumb ass. I was so concerned about running lean thats all I could think about.

  5. #5
    Orlando Shark's Avatar
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    No problem, good luck with the upgrade. I just upgraded to an ET wheel and spacer and Les ECU. Lets see how that goes.

  6. #6
    Mod less, ride more! troyheb's Avatar
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    Quote Originally Posted by ImAShark View Post
    No problem, good luck with the upgrade. I just upgraded to an ET wheel and spacer and Les ECU. Lets see how that goes.
    Hope it works out for you.

  7. #7
    Having Fun jp1300r's Avatar
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    Quote Originally Posted by troyheb View Post
    Ok, so the weather finally stopped raining and I get out to test the Riva X charger Upgrade and 50's that I installed.

    Here are the stats

    08 RXPX, 4" air, FA removed, R&D grate, 83mm nozzle, wedge, ride plate modded, 15/22 modded by Speedfreaks. Top speed 77.4

    Added the X charger upgrade and 50's. Top speed 72.8

    I had my exhaust manifold drilled and tapped for AFR.
    Afr today

    idle = 13.5
    mid = 12.6
    around 6500 rpm = 11.5
    6500 to wot = 10.8
    When I saw the 10.8 I did not hold it there long the ski might have been faster but did not want to chance it. 10.8 is to lean right?

    The power is there. There is a slight bog when I stab it from an idle, but it pulls much harder than before. I can feel it pull harder all through to top end. I have the Rude fuel controller that I will put back on and see if I can get it to connect to my laptop and try to add some fuel to the wot.

    Get a RRFPR and start at 50psi when you plug the key in and start tuning. Would be good to know the rpms, AFR, and fuel pressure at WOT.

  8. #8

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    You wont hurt it at 10.8 that is way rich. The number is measuring air lower number less air. Less air = richer.

  9. #9
    mrbtd's Avatar
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    Do you or dont you have a rrfpr ?????

    if you add a rrfpr you wouldnt need the 50's

  10. #10
    Mod less, ride more! troyheb's Avatar
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    No rrfpr. I have a Rude controller that I thought I would use to line this stuff out, but I could not get my computer to talk to it last week so I took it off. I will put it back on and try again.

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