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  1. #1
    txgp1300r's Avatar
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    tested my ragged shoe and cut grate

    ok guy's and gal's i started a new thread so as not to hi-jack jarrett,and im going to keep to the point..lol......previously my best speed was 67.7 at 7120..i went out this morning 85 deg air 518 ft altitude and could only get 6970 rpm but my speed was....69.0 gps.....only thing i did was to cut back the outside scoop tips on my 1200 grate and pull of the nasty 5200 flash yamaha left in my scoop....ski felt livelier and lighter, i did a high speed(for me) shut-off to see if ski was going to go crazy and turn left like it does on stock grate , ski is perfect now...i even went to the bouy course and ran some slolom...felt real good...i just need/want 2 mph....i re adjusted my efi to 6.6.4.9. sounds rich but was picking up rpm from 6.6.1.9.......and i got a kill...lol.....a..sea do....a kill is a kill....new gtx.


  2. #2
    flyboy's Avatar
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    you must be happy, I'm happy for you! any + is always good! your speed right now is where I was with your mods. I know there are those here that go 70+ with minor mods, but your ski sounds right on target compared to mine last season.

    Congrats!

    PS post a pic of your grate mod, I would like to see what was done to the 1200 grate to get another MPH out of it.

    James

  3. #3
    txgp1300r's Avatar
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    http://www.greenhulk.net/yama/showthread.php?t=2738 it looks rough but is actually quiet smooth

  4. #4
    Moderator Insanediego Joe's Avatar
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    Hey any improvment is good. You want 2 more miles per hour free? Remove that shoe all the way and seal it right. Bingo 71 mph.

  5. #5
    Very similar to how I did my grate, works for me.

  6. #6
    txgp1300r's Avatar
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    hmmmmm...i like bingo...........im going to do just that..glad i bought a spare tube of 5200 quick dry.......the reg takeds 8 days to cure...something else that i did was put my efi on 6.6.4.9. sounds too rich but it ran great and the plugs are a light tan and dry.

  7. #7
    All hail the Chief! fullboogie's Avatar
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    Getting to 75 or 77 nowadays is a proven, easy formula. Getting to 80 takes the little things like you're doing - dozens of little bitty projects like profiling, sanding, smoothing, measuring, etc. is how we make the big numbers. Keep it up!

  8. #8
    Jarrett's Avatar
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    Congrats, glad to see the improvement. But hey, where's that buoy course?

  9. #9
    JetSkiDaddy's Avatar
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    Cool

    Good to here TX, keep it up

    Speeking of bouy's, are you Dallas boy's going to go to the SuperCoarse Nationals in Dallas (Lake Lewisville) in Sept ? I might have to meet up with ya'll

  10. #10
    fx160's Avatar
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    shows just how much speed is avalable by cleaning up the flow area


    kev

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