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  1. #1
    Live Fast wave15stx's Avatar
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    2012 rxtx stock fpr

    im noticeing on my ski rpms fluctuate 100 +rpms im wondering if it can have anything to do with the stock fpr i seen others posting how theye are all over the place anyone else having this issue?


  2. #2
    Live Fast wave15stx's Avatar
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    i should also add i have a vtech 8375 tune which is on the lean side wot also tried couple differnt tunes adding more fuel op top i might just add a regulator to the mix

  3. #3
    stuckmoto's Avatar
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    I would. The stock reg is too inconsistent.

  4. #4
    SEA-NYLE's Avatar
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    What is the better and easiest to install fuel pressure regulator? There are several on the market, all within the same price range.

  5. #5
    We recommend using the VT11 injectors even before a regulator.
    Even on stock skis they are VERY good, but you need our tune for them.

  6. #6
    Live Fast wave15stx's Avatar
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    always heard good things about riva

  7. #7
    rxtmike's Avatar
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    so jonathan ,i can buys these 1100cc and install them in my ski with the v tech tune at 8375 102 and adjust with the map editor???? because the rpms are going up and down when i stop the ski and sit and restart it i get 8380 then i stop again and restart the ski and i get a diffenent rpm, these rpms or not staying the same.They are all over the place, i went from 8380 to 8280 in one run, then i get 8300 to 8140 whats up with that, the water is 71 the air is 78 i should be all over the rev.i have a riva fuel regulator i want to install on the ski but if this works i will buy them, i have the stock ones in my ski now, please get back to me so i can order yours. But if i can install riva fuel regulator instead of buying injectors for more money .

  8. #8
    rxtmike's Avatar
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    one more thing we are not running high boost, we are running stock chargers!!!!!!

  9. #9
    dpracing's Avatar
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    Quote Originally Posted by wave15stx View Post
    im noticeing on my ski rpms fluctuate 100 +rpms im wondering if it can have anything to do with the stock fpr i seen others posting how theye are all over the place anyone else having this issue?
    You need to verify your fuel pressure. Mine fluctuates between 58 and 45. WTF

  10. #10
    Live Fast wave15stx's Avatar
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    Is this the regulator or the fuel pump making this happen

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