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  1. #1
    bavboym3's Avatar
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    What MPH should I expect?

    I just got my boat to the shop to finish a couple things. This is what I have done.

    Riva Power Filter Kit
    Riva RXP Grate
    O.P.A.S. Performance Block-off Kit
    RIVA Pump Wedge
    RIVA / Vortech 'GEN-2' Supercharger Impeller
    15/20R impellor

    What mph should I expect?


  2. #2
    JimmyRXP's Avatar
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    about 72 to 73 MPH. That prop may have to be bent if you don't add an external IC. You want to be at 8100 RPM it makes the difference.

  3. #3
    blowbyu's Avatar
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    What MPH should I expect?

    72.5-74

    I ran [email protected] with a half a tank fuel. At the time my mods were:

    RR Wheel
    Riva Grate
    Riva Rear Intake
    Riva Rear Exhaust
    Open Loop
    O.P.A.S. Performance Block-off Kit
    Ride Plate Holes filled
    15-20

    If I had tweeked my prop for 8100 rpms and has less fuel I feel the ski would have hit 74.

    Sent from my iPhone using Tapatalk

  4. #4
    bavboym3's Avatar
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    Feel faster for sure. I am hitting 8160RPM. is that ok?

  5. #5
    You are going to need to add some pitch to the prop. When you start to get above 8100, the ECU starts to pull timing.

  6. #6
    bavboym3's Avatar
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    Quote Originally Posted by Sheepfu View Post
    You are going to need to add some pitch to the prop. When you start to get above 8100, the ECU starts to pull timing.

    Is this bad for the boat? Does it make it go slower?

  7. #7
    bavboym3's Avatar
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    Quote Originally Posted by Sheepfu View Post
    You are going to need to add some pitch to the prop. When you start to get above 8100, the ECU starts to pull timing.

    I need more input on this. The prop that is on there may be wrong, cause I bought it used, and he said he had it tweeked. I dont feel like the ski has picked up 5mph like it should have.

  8. #8
    formerly Gold06RXP Turbo Nick's Avatar
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    If your at 8160 thats fine. In fact I would call that ideal for a stock ecu. If you get to 8200 (which you will in cool weather)then youll need to have some pitch added. Give Speedfreeks a call. He will take care of your prop. Or you could add the reduction nozzle w/ 81mm ring and pick up 1-1.5 MPH and your set
    Quote Originally Posted by bavboym3 View Post
    I need more input on this. The prop that is on there may be wrong, cause I bought it used, and he said he had it tweeked. I dont feel like the ski has picked up 5mph like it should have.

  9. #9
    bavboym3's Avatar
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    Quote Originally Posted by GOLD06RXP View Post
    If your at 8160 thats fine. In fact I would call that ideal for a stock ecu. If you get to 8200 (which you will in cool weather)then youll need to have some pitch added. Give Speedfreeks a call. He will take care of your prop. Or you could add the reduction nozzle w/ 81mm ring and pick up 1-1.5 MPH and your set

    I GPS'd it at 70.4MPH with my setup on almost empty fuel tank.

    I think im gonna need the intercoolr, and exhaust.

  10. #10

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    Quote Originally Posted by bavboym3 View Post
    I GPS'd it at 70.4MPH with my setup on almost empty fuel tank.

    I think im gonna need the intercooler, and exhaust.


    You are exactly correct.

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