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  1. #1
    Yanksfan's Avatar
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    23 Psi wheel or Cam?

    Thinking about what to do next on my ski should be the last item to do, what will you do from these two?

    I have a stage 3 with a xx Riva 17.5 now.

    Thoughts?


  2. #2
    DR2006RXP's Avatar
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    23 Psi wheel or Cam?

    Quote Originally Posted by Yanksfan View Post
    Thinking about what to do next on my ski should be the last item to do, what will you do from these two?

    I have a stage 3 with a xx Riva 17.5 now.

    Thoughts?
    How do you like the xx wheel over stock ?

  3. #3
    Yanksfan's Avatar
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    Worth every penny, if I go with the bigger one I might sell this one

    Quote Originally Posted by DR2006RXP View Post
    How do you like the xx wheel over stock ?

  4. #4
    DR2006RXP's Avatar
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    Quote Originally Posted by Yanksfan View Post
    Worth every penny, if I go with the bigger one I might sell this one
    What speed was you getting with it ?

  5. #5
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    Quote Originally Posted by DR2006RXP View Post
    What speed was you getting with it ?
    Mechanics get 86, me personally 84 I have no idea how they do it lol

  6. #6

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    Both! I went from an XX last year to a stage 3 eastside dam and an XXX charger.

  7. #7
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    Quote Originally Posted by Snyper View Post
    Both! I went from an XX last year to a stage 3 eastside dam and an XXX charger.
    big difference? fuel upgrade I assume?

  8. #8

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    Quote Originally Posted by Yanksfan View Post
    big difference? fuel upgrade I assume?
    Full return fuel system with an aeromotive 340lph pump.



  9. #9

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    Quote Originally Posted by Yanksfan View Post
    big difference? fuel upgrade I assume?
    Difference is huge! I used to think you couldn't do it on a stock pump, but if your fuel filter that can't be replaced above the pump is nice and clean and your fuel socks are in good shape you'll be ok. If it was my ski I'd do a pump, riva regulator and plumb in a gauge to check fuel pressure. I've seen way to many misc issues on high HP skis that turn out to be fuel pressure issues for one reason or another.

  10. #10
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    There may be performance loss at higher boost with stock pump even if you can control the AFR. My 260 stock pump drops down to 54.x PSI range at 17PSI of boost with et135, so the injector is in effect spraying at 37 PSI which is borderline of minimum pressure for the bosch 1000cc injectors aka vt1100. At this low effective injector pressure fuel atomization will start to suffer and will not burn as efficiently.

    Not to long ago people were freaking out if someone ran something as small as et137 with stock fuel pump.

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