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  1. #1
    BLACK MAGIC HEADERS hydrojunkie's Avatar
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    I Am Pleased To Introduce First Gprxp With Rxp Pump

    TODAY WAS A GROUND BREAKING DAY. I AM GOING TO DO MY BEST TO EXPLAIN BUT I HOPE SHIBBY CHIMES IN AND HELPS.



    FIRST I WOULD LIKE TO GIVE HUGE THANKS TO SHIBBY FOR HIS TIME AND KNOWLEDGE.

    FIZZLE FOR COMING FROM ALBANY DRIVING 4 1/2 HOURS FOR TESTING.

    AND MATTY FOR HELPING OUT

    SO HERE'S THE DEAL.EVERYTIME YOU SEE ME PUT UP A VIDEO IT'S NOT TO SAY OH LOOK AT MY SKI CHECK IT OUT. NOPE IT'S TO TEST A NEW PRODUCT. HEADERS MUFFLER , PUMP ADAPTER AND SO ON.

    NOW DOWN TO THE NITTY GRITTY. WE HAD A VERY PRODUCTIVE DAY AND FROZE OUR BUT'S OFF. 45 DEGREE'S


    FOR THE RECORD FIZZLE HAS A BORDERLINE STAGE 3 BOAT. 15/ 20R
    MY CONVERSION IS A MILD STAGE 2 WITH A 15/20R



    THE CONVERSION HAS A RXP PUMP STAINLESS WEAR RING AND A 15/20R WITH 2MM BENT.I AM USING A 81MM VENTURI WITH A 85MM STEERING NOZZLE. THE ACCELERATION IS PRICELESS BUT STILL HAS A LITTLE CAVITATION.

    THEN WE PUT IN A 15/19R STAGE 3 PROP AND HAD ZERO CAVITATION. I MEAN ZERO.THE ACCELERATION WASNT AS GOOD AS THE 4 BLADE BUT YOU DEFF NOTICED THE DIFFERENCE.IT'S AS IF THE 15/19 NEEDED A LITTLE MORE BOOST. BOTH PROP'S ARE PRETTY MUCH ON THE REV LIMITER.


    SPEEDS.

    THE 15/20R WITH A 2.5 DEGREE WEDGE , 81 MM VENTURI AND A 85 MM STEERING WENT 81.4 @ 8100. NOW WE NOTICED WITH NO WEDGES THE BOAT RAN JUST UNDER [email protected] 8100. WITH 1 2.5 DEGREE WEDGE IT WAS UP TO 81.5 THAT'S 4.5 MPH GAIN. SO THE NEXT TEST WILL BE WITH 2 2DEGREE WEDGES. WE ALL ESTIMATED BASED ON OUR TEST THAT IF WE GAINED 4.5 MPH WITH 1 WEDGE WE SHOULD DEFF SEE AT LEAST 2MORE MPH 2 2 DEGREE WEDGES. THAT BRINGS US TO 83.5 GIVE OR TAKE. THE 800 GRATE IS GOOD FOR 2 MPH THATS 85.5 ON A MILD STAGE 2 BOAT.

    YOU CANT AMAGINE THE ACCELERATION WITH THIS SKI. IT WAS INCREDIBLE. IT'S A WIN WIN SITUATION. HERES THE VIDEO. ENJOY




  2. #2
    dhoad's Avatar
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    OMG
    Nothing better than arm stretching acceleration!

  3. #3
    BLACK MAGIC HEADERS hydrojunkie's Avatar
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    Take A Looksie
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    Last edited by The Bandit; 03-30-2008 at 08:38 PM.

  4. #4
    Moderator RX951's Avatar
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    GPR GPRXP RXP pump adapter

    Yu Go Boi !! Now thats what I'm talking about. a GPRXP with a holeshot and hopefully/possibly no buck with the bigger pump

    GREAT JOB on that pump adapter !!!

  5. #5
    The ski's have taken a "backseat" to the Corvette DarthAWM's Avatar
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    Awesome work guys. That ski is running great. So would you say the Doo pump is an improvement over running the Yami pump?

  6. #6
    BLACK MAGIC HEADERS hydrojunkie's Avatar
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    Quote Originally Posted by DarthAWM View Post
    Awesome work guys. That ski is running great. So would you say the Doo pump is an improvement over running the Yami pump?
    I WOULD HAVE TO SAY YES. ALTHOUGH I HAVENT TEST THE HO PUMP. BUT I KNOW THERE IS TREMENDOUS CAVITATION WITH IT. NOT ANY MORE

  7. #7
    Site Admin Green Hulk's Avatar
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    Jason, you sure have done a wonderful job with this

  8. #8
    Moderator The Bandit's Avatar
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    Quote Originally Posted by Green Hulk View Post
    Jason, you sure have done a wonderful job with this
    Awesome dude. BRP reverse system should be able to be added in as well, ay?

  9. #9
    BLACK MAGIC HEADERS hydrojunkie's Avatar
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    Quote Originally Posted by Green Hulk View Post
    Jason, you sure have done a wonderful job with this
    THANK YOU HOPE EVERYBODY LIKES IT.

  10. #10
    BLACK MAGIC HEADERS hydrojunkie's Avatar
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    Quote Originally Posted by GPRXP Steve View Post
    Awesome dude. BRP reverse system should be able to be added in as well, ay?
    YES FIT'S LIKE A CHARM.. YOU CAN PULL YOUR PUMP OUT WITHOUT HAVING TO TAKE THE RIDEPLATE OFF TOO

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