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  1. #1

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    2010 RXT-X Riva XXX charger question

    I am installing a Riva XXX charger on my ski, here is what I have so far.

    I have a Vtech, 4in Kanaflex intake, supertech valave train Solas 15/22. Do i need a RRFPR to run this charger or can Vtech adjust the fueling properly without a RRFPR?

    Ski is a 2010 RXT-X


    Thanks


  2. #2
    www.eastcoastpwc.net Scott's Avatar
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    Quote Originally Posted by V6speed04 View Post
    I am installing a Riva XXX charger on my ski, here is what I have so far.

    I have a Vtech, 4in Kanaflex intake, supertech valave train Solas 15/22. Do i need a RRFPR to run this charger or can Vtech adjust the fueling properly without a RRFPR?

    Ski is a 2010 RXT-X


    Thanks
    Using stock injectors? then yes youll need a rrfpr.

  3. #3
    ecpChris's Avatar
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    I would be very suprised if you could fuel that charger with stock injectors. Minimally you will need a rrfpr and an upgraded fuel pump
    Ideally you would prob want to go with 80lb injectors and a tune that is mapped for them.

  4. #4
    oz_speed's Avatar
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    2010 RXT-X Riva XXX charger question

    Guy I know is running a xxx with 60lb injectors & RRFPR on 09 PX and they work well, he is controlling fuel with a CMD unit.

  5. #5
    GRF + DashPac:) seadoo02xp's Avatar
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    Stock 48s with an rrfpr will fuel that charger, i ran it. Base psi at 55 wot afr at 8600 8700 was 11.8, reference line attached

  6. #6

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    All I need to ask Vtech for is the 8950 tune?

    Thanks

    Matt

    Quote Originally Posted by seadoo02xp View Post
    Stock 48s with an rrfpr will fuel that charger, i ran it. Base psi at 55 wot afr at 8600 8700 was 11.8, reference line attached

  7. #7
    GRF + DashPac:) seadoo02xp's Avatar
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    yes make sure you tell him you changed the supercharger, get an afr on it before you go too crazy, you can blow up an engine in a hurry if you are lean,
    ill find out this week if a rising rate and 48's will fuel the et race charger too,

  8. #8
    www.eastcoastpwc.net Scott's Avatar
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    2010 RXT-X Riva XXX charger question

    Quote Originally Posted by seadoo02xp View Post
    yes make sure you tell him you changed the supercharger, get an afr on it before you go too crazy, you can blow up an engine in a hurry if you are lean,
    ill find out this week if a rising rate and 48's will fuel the et race charger too,
    Awesome! Looking forward to your results

  9. #9
    GRF + DashPac:) seadoo02xp's Avatar
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    Quote Originally Posted by Scott View Post
    Quote Originally Posted by seadoo02xp View Post
    yes make sure you tell him you changed the supercharger, get an afr on it before you go too crazy, you can blow up an engine in a hurry if you are lean,
    ill find out this week if a rising rate and 48's will fuel the et race charger too,
    Awesome! Looking forward to your results
    id say there is a 50/50 shot that it will, im guessing ill have to run pretty high fuel pressure, but to fuel the xxx i was under stock psi with a rising rate. this will be my last time out for the year so if i blow my engine to pieces ill have all winter to make it stronger

  10. #10
    www.eastcoastpwc.net Scott's Avatar
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    2010 RXT-X Riva XXX charger question

    Quote Originally Posted by seadoo02xp View Post
    Quote Originally Posted by Scott View Post
    Quote Originally Posted by seadoo02xp View Post
    yes make sure you tell him you changed the supercharger, get an afr on it before you go too crazy, you can blow up an engine in a hurry if you are lean,
    ill find out this week if a rising rate and 48's will fuel the et race charger too,
    Awesome! Looking forward to your results
    id say there is a 50/50 shot that it will, im guessing ill have to run pretty high fuel pressure, but to fuel the xxx i was under stock psi with a rising rate. this will be my last time out for the year so if i blow my engine to pieces ill have all winter to make it stronger
    I love the positive thinking! LOL

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