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  1. #1
    Chrisrokc's Avatar
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    First ride of season...

    Well ok I just got back from doing a little test run. It was 77 degrees, wind at around 16mph so the water was choppy. Ran a blazing 63mph at 6980rpms lol! I was thinking what gives!?!

    These are my mods as of today....

    EFI Controller - Settings 5-5-0-8 (are the settings about correct?)
    Riva Racing Flam Arrestor
    Riva D-Plate
    Jetworks Mod
    14/20 Dynafly
    2005 Pump Upgrade
    87mm R&D Nozzle
    Riva Intake Grate
    Modded R&D Plate FF Style
    Modded Bucket and Hood for more airflow
    PPK but NOT SEALED with 4200

    Everything on the underside of the hull is set up right. Pump shoe up in hull and ride plate setup correctly thanks to Steve.

    I did just had the motor rebuilt last summer after it ran hot and warped the head. They replaces everything they thought could have been hurt, even piston rings.

    During the break in they had extra oil in the gas tank, never fully ran all the gas out of it really, i always filled it up again before going to the lake to delute the extra oil. Had it winterized by the same shop, set all winter, did more stuff, and here i am today.

    I will post a picture of the spark plugs in just a sec.


  2. #2
    Hydrotherapy's Avatar
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    why the 87mm nozzle with a 05 pump and a 14/20 ??...

  3. #3
    Chrisrokc's Avatar
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    There are my spark plugs, the first to the left is the back on, middle is middle, and the right is the front.

    I am running the 87mm nozzle to try and gain more rpm possibly with the 14/20. R&D and some people on here are doing it.
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  4. #4
    Happily Self-Employed WFO's Avatar
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    The 87mm will raise rpms 60-80, but probably drop top speed 1 mph.

    Also what grate ?

    And how did it feel ? Was is loose or rock solid ? Did you try superman ?

  5. #5
    Chrisrokc's Avatar
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    Here are some pics of the bottom of the hull and efi controller. Who knows, maybe my dumbass is reading the EFI controller wrong and that is all my problems.

    Oh and do I have the tach wire in the right spot?
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  6. #6
    Chrisrokc's Avatar
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    Quote Originally Posted by WFO View Post
    The 87mm will raise rpms 60-80, but probably drop top speed 1 mph.

    Also what grate ?

    And how did it feel ? Was is loose or rock solid ? Did you try superman ?
    The hope is the 60-80 rpms will off set the loss because it would allow to get to 7150 or 7200 ish rpms. I could be wrong but that is the though.

    I am using a 1200 grate.

    Ski came out of the water from a stop like a bullet, love the jetworks mod, it was pretty rock solid, handled the waves like a champ. Didn't try superman because it was too choppy for it, I would say 6 inches or more of chop. That and I am not a big big guy only weigh 150 and I am 5'9 so the chop would have busted my chops lol.

  7. #7
    Happily Self-Employed WFO's Avatar
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    The controller is at 6619. Think of it like a clock. That may be fat on the low and mid. The high is fine, buy drop the crossover to come in (red light on) at around 5500.

  8. #8
    Happily Self-Employed WFO's Avatar
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    Dont feel so bad. Keep working on the set-up, but dont change too much at one time. The chop and wind will potentially slow you down anywhere from 2-4 mph depending on how you handling is set. Also the fuel level will effect top end speed #s.

  9. #9
    Chrisrokc's Avatar
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    Quote Originally Posted by WFO View Post
    Dont feel so bad. Keep working on the set-up, but dont change too much at one time. The chop and wind will potentially slow you down anywhere from 2-4 mph depending on how you handling is set. Also the fuel level will effect top end speed #s.
    Yea, I had a full tank of old gas with oil in it still, plus the oil from the ski, the plugs were wet to the touch with oil and it was choppy..

    I think I just expected a lot more than that poor performance.

  10. #10
    steach's Avatar
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    What was the water temp? You may not have the motor hot enough.

    How does the motor sound? Is the compression good?

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