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  1. #1
    imp0ster's Avatar
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    Shooting for 83mph on the couch ;)

    83.4 @ 9400RPM on the limiter in salt water. Goal achieved

    This list is current no matter when it's read. I'm after 85 now.

    I keep a list of things I've done in case I ever need to sell it or part it out

    P&P '06 Head (REV valves, bronze guides, Serdi valve job)
    Garrett 500 IC, my piping and highly modified Fizzle HE bracket
    2008+ mid pipe and TDR rear exit exhaust with an ultra temp coupler & T-bolt clamps
    Deka 80# injectors
    Walboro 255
    Modified R&D Venturi Steering Nozzle
    Torx Stage 2 Cam with Ti bolts
    Supertech springs / Ti Retainers
    Triple Bearing ET 68-140XLE SC with ET cooler
    Solas 15/20r
    RAD 4 Torque plate
    Riva Open loop cooling (my routing)
    V-Tech custom tune 9.4k limit
    V-Tech Data logging
    RXT-X R&D Aquavein grate
    RXT-X Closed Loop Plate by Jim
    RXT-X Drive Shaft & Pump Support
    Custom 4” air with FlexTube PV
    06+ rocker shaft and factory jet removed
    ARP Head studs
    Autometer Liquid Filled 2-5/8 Sport Comp boost in a custom mirror pod
    Custom seat cover
    Custom HydroTurf
    MTXL AFR Gauge
    TTO IAT Pyrometer
    Ride plate holes filled
    Reverse bucket mod
    Rude through hull
    Torx 4” SC adapter
    Torx FPR tank adapter
    Torx billet reverse & steering nuts
    GROCO and all new water lines
    06+ flywheel bolts
    New carbon seal, PTO seal, top hat and o rings. Drive shaft sanded and painted
    WSM rear motor mounts, Piranha Parts solid front mount
    engine perfectly aligned
    Everything blasted down and painted
    OPAS Delete with Ti button head bolts
    Custom 32” Renthals, One Industries pad, ODI Troy Lee grips, Blowsion finger throttle & fly racing kill/start
    Hull fully debadged
    Rule 500 Bilge pump
    Danny fuel rail (red over silver metallic base) all AN fittings and braided line
    Aeromotive Compact EFI regulator
    Hull back half directional sanded with 400
    Riva nozzle 81-83mm ring


    FYI anyone with a 215 ride plate would do well to use these if looking for 70-75mph

    http://www.ebay.com/itm/Replacement-Hull-Insert-Repair-Kit-Jet-Ski-PWC-Sea-Doo-/221070543350?pt=Personal_Watercraft_Parts&hash=ite m3378d4c9f6=&vxp=mtr=
    Last edited by Snoman; 03-15-2015 at 07:22 PM.


  2. #2
    imp0ster's Avatar
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    Before and mostly after shots. Somethings now look a tit bit different

    Click image for larger version. 

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  3. #3
    Boost addict hotbird's Avatar
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    Your doing better than me! I only managed 77mph at 8900 with my old rxt and simular mods.

  4. #4
    GRF + DashPac:) seadoo02xp's Avatar
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    MO
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    i love lamp

  5. #5
    JT jpt7779's Avatar
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    Jul 2008
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    Pittsburg, Texas Lake Bob Sandlin
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    My brother in law, 1tommygunner1927 has his 08 TX running 82-83mph, so it can be done. The 2 things I see with your setup is the injectors and impeller pitch. I suggest you get rid of the 60# injectors as they are maxed out duty cycle at high rpm. You need either the VT1100 or Injector Dynamics 1000cc to run 8800 rpm or so and the tune to match. Use your 83mm nozzle with a SFR pitched 12.5/21 or send to Duke for approximately the same pitch mod and you'll see much improved speed.

  6. #6
    captain slow Turbo Retro's Avatar
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    Emmmmm..

    My 07 rxt went 87mph on 17psi with a big 4 blade prop.

    Its been slowed down to 84mph with 3 blade prop, bent and welded veins shaved. It accelerates like only 1 other ski I have been on. Its pitched to run @ 8800 rpm.

    Another ski in Puerto Rico is @ 90mph + with more boost and similar turbo. Same year hull.

    Can't use the top speed here, but I know I out accelerate my stock rxp like its idling lol

  7. #7
    imp0ster's Avatar
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    We're talking SC'd skis you turbo fart.

    I ran 9K with 80lb Bosch short injectors form a vette and ID spacers. I need more prop but I was cavitating a bit so I'm sure RPMs will be a shit bit lower once I put it back together. I maxed the 50s about 8400-8500

    Are you saying swap to a 3 blade prop? Is there any downfall to it?

  8. #8
    captain slow Turbo Retro's Avatar
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    Your title doesn't specify turbo or supercharged does it??
    U want to know how to get there, I am telling you how I got there. Pretty sure your hull has 60kg more weight than the 07 rxt.

    I don't think you could do it unless you are pulling some major rpm's with a supercharger.

    No 3 blade prop loses speed. I intend on fitting lucky 13 pump cone so I can maybe wind up more boost and accelerate even harder with less cavitation

    Quote Originally Posted by imp0ster View Post
    We're talking SC'd skis you turbo fart.

    I ran 9K with 80lb Bosch short injectors form a vette and ID spacers. I need more prop but I was cavitating a bit so I'm sure RPMs will be a shit bit lower once I put it back together. I maxed the 50s about 8400-8500

    Are you saying swap to a 3 blade prop? Is there any downfall to it?

  9. #9
    imp0ster's Avatar
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    I have stripped everything out that doesn't need to be there. Factory tubing, cut the seat brace, no vts, factory steering gone. I should be a whopping 10 to 20lbs lighter

  10. #10
    captain slow Turbo Retro's Avatar
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    I have vts, stereo and dual batteries. Also learning key runs @ 40mph when my kids ride it. We go camping with the rxt and the damn thing uses less fuel than the stock rxp on long runs.

    Not sure where 07 hull is lighter than previous year hulls

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