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  1. #1

    Join Date
    Apr 2006
    Location
    St. Petersburg, FL
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    Milled head and 89 octane?

    I would like to have my head milled, but I go on long rides with the local club and I need my ski to run on 89 octane - am I SOL? Could I mill it enough to make a difference, but not so much that it would require 93? What about the keyway? - could I run a "little" advance, but not so much that it might cause me trouble?

    Thanks!
    Jeff
    05 GP1300R
    05 STX-15F


  2. #2
    This may be a question for Lowell or TJ.

  3. #3

    Join Date
    Apr 2006
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    St. Petersburg, FL
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    55
    If this is possible, I think marketing an 89 octane performance package could go a long way.

  4. #4
    Happily Self-Employed WFO's Avatar
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    Nov 2005
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    Houston, Texas
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    Ck with Group K

    They do ALOT of nice custom machine work.

  5. #5
    Quote Originally Posted by jfoster
    If this is possible, I think marketing an 89 octane performance package could go a long way.
    I agree, 89 is what's readily available on our lake.

  6. #6
    Fast1's Avatar
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    Dec 2005
    Location
    Minneapolis, MN
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    97
    1st it depends on the elevation you ride at.

    I've had this issue previously and have carried octane booster to improve the octane rating of a tank of fuel but I kept off the throttle because of the potential danger..

  7. #7
    mtrager's Avatar
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    Orlando, Florida, United States
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    I have an 05 with everything. I bet if you left the stock heads on did the package with stock prop and stepped sponsons you wood have a ski in the 73 range on 87 octane without a fuel controller.

    I think you can remove either the cat or the sound suppression but not both and not run a controller.

    My ski with grate and riva plate ran 69 mph after 3 run average .

    My stock prop went all the way to 71 mph.

  8. #8

    Join Date
    Apr 2006
    Location
    St. Petersburg, FL
    Posts
    55
    I've got:

    Jetworks
    R&D D-Plate (been told this is too small?)
    14/20 Dynafly
    R&D Intake grate
    Riva ride plate (not modded)
    PPK
    R&D EFI

    So, Im kinda ready for the next step, whatever that is...just has to be 89 friendly. I think it will be Jims plate and VFR setup...AND a tach

    Jeff

  9. #9
    DoktorC's Avatar
    Join Date
    Nov 2005
    Location
    Tottenham, ON
    Posts
    56
    I'm in the same situation...I can only get 89 and I'm on an Island so I'm kinda stuck. The stock head has been fine so far and I think bigger gains are to be had with rideplate/tab mods but more compression would really help on the bottom.

  10. #10
    Moderator RX951's Avatar
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    Apr 2005
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    League City, Texas
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    This may be a question for Lowell or TJ.
    diTTo

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