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  1. #1

    Join Date
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    75 mph+ 1200 single

    I've been working on my 2001 1200 gpr that I bought from Ben Herman after I sold my BB Triple piper. I was going to keep it near stock but I can't help to make it faster. So for fun I started modding just to see what a 1200 single could run. This is kinda old school now and you can pick up alot of these parts used for good prices.

    Its turning a out of the box dynafly 14/20 7200rpm at 75.1mph. With this setup it will run 74mph just on the back of the seat.

    Going to try and find more rpm and maybe pitch the prop up see if it will go 77mph+

    Mods-
    stock carbs rejetted, removed air box
    V-Force Reeds
    ADA Head 150 psi
    3 degree keyway
    '05 HO pump with 2" spacer
    Dynafly 14/20
    85mm nozzle
    Leo's wedge
    Jims plate set at over 1"
    stock Tabs shimmed at .120"
    Sealed Pump shoe
    800 grate
    D-plate
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  2. #2
    leo's Avatar
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    good job ron

  3. #3

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    Apr 2006
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    Thanks Leo. The pump wedge definitly helped speed on this ski.

  4. #4
    WATER WOODY's Avatar
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    Nice Ronn.....keep up the good work.

  5. #5
    leo's Avatar
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    Quote Originally Posted by Ronn25 View Post
    Thanks Leo. The pump wedge definitly helped speed on this ski.
    thanks

  6. #6
    Moderator OsideBill's Avatar
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    Ron sounds like you are having fun Spud and Billie got theirs up in the 77 range, I know you can do it.

  7. #7
    Awesome man! Keep up the good work! We need to do a lil playing with mine. I plan on pulling it off the trailer and truing the hull in the next few weeks and doing some other lil maintenance.

    Let me know when your ready to go ride!

  8. #8
    Rt-HemiBoY's Avatar
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    Hey ronn whatz up I'm new to the site an I read ur post and I would like to get more information on the mods u have done to ur ski since I drive a 02 1200gpr I would like to get at least 70-73mph in a stock way Im running a d-plate already and premix also the guy who I bought from said he change the impeller but don't know to what size so if u could help me out with some info will be great

  9. #9

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    Quote Originally Posted by OsideBill View Post
    Ron sounds like you are having fun Spud and Billie got theirs up in the 77 range, I know you can do it.
    Yeah thats what its all about

  10. #10

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    Quote Originally Posted by bow tie klr View Post
    Awesome man! Keep up the good work! We need to do a lil playing with mine. I plan on pulling it off the trailer and truing the hull in the next few weeks and doing some other lil maintenance.

    Let me know when your ready to go ride!
    Long time man...give me a call. We will have to ride this summer.

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