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  1. #1
    Connecticut CrazyA's Avatar
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    Please take your best "guess"

    And I say "guess" because I know every ski, weather condition, fuel quality etc... is different and so on.

    I have an '05 GPR 1300. I have ZERO engine mods. I do have all the standard air mods to get more air to the engine compartment. I have the PPK, R&D two bar (soon to be 800) grate and Jims J-Plate with stepped stock sponsons. I'm turning a 14/20 DF at 7050-7200rpm and 70-72mph through an 87mm nozzle depending on weather conditions and load, etc.
    Plugs and piston wash look great.

    Big question and I know it's sketchy, that's why I'm saying "guess" -

    Do you think I could get my head cut to raise my compression to 150 psi (give or take) WITHOUT any other mods? ie: fuel controller, d-plate.... etc. and be safe?




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  2. #2
    Hydrotherapy's Avatar
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    i would say no to head work without the EFI unit..

    just playing on the safe side..
    Last edited by Hydrotherapy; 10-08-2007 at 10:49 AM.

  3. #3
    Moderator OsideBill's Avatar
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    Crazy did the 05 have aluminum or plastic trim tabs?

  4. #4
    Hydrotherapy's Avatar
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    Quote Originally Posted by osidebill View Post
    Crazy did the 05 have aluminum or plastic trim tabs?
    plastic trim tabs

  5. #5
    Moderator OsideBill's Avatar
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    Get rid of those plastic ones and get some aluminum OEM ones or modified R&D

  6. #6
    Hydrotherapy's Avatar
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    Quote Originally Posted by osidebill View Post
    Get rid of those plastic ones and get some aluminum OEM ones or modified R&D
    bill pm sent

  7. #7
    Moderator beerdart's Avatar
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    Quote Originally Posted by CrazyA View Post
    And I say "guess" because I know every ski, weather condition, fuel quality etc... is different and so on.

    I have an '05 GPR 1300. I have ZERO engine mods. I do have all the standard air mods to get more air to the engine compartment. I have the PPK, R&D two bar (soon to be 800) grate and Jims J-Plate with stepped stock sponsons. I'm turning a 14/20 DF at 7050-7200rpm and 70-72mph through an 87mm nozzle depending on weather conditions and load, etc.
    Plugs and piston wash look great.

    Big question and I know it's sketchy, that's why I'm saying "guess" -

    Do you think I could get my head cut to raise my compression to 150 psi (give or take) WITHOUT any other mods? ie: fuel controller, d-plate.... etc. and be safe?




    .
    I like the front bucket mod and Velcro!!!!
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  8. #8

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    Talking

    Quote Originally Posted by CrazyA View Post
    And I say "guess" because I know every ski, weather condition, fuel quality etc... is different and so on.

    I have an '05 GPR 1300. I have ZERO engine mods. I do have all the standard air mods to get more air to the engine compartment. I have the PPK, R&D two bar (soon to be 800) grate and Jims J-Plate with stepped stock sponsons. I'm turning a 14/20 DF at 7050-7200rpm and 70-72mph through an 87mm nozzle depending on weather conditions and load, etc.
    Plugs and piston wash look great.

    Big question and I know it's sketchy, that's why I'm saying "guess" -

    Do you think I could get my head cut to raise my compression to 150 psi (give or take) WITHOUT any other mods? ie: fuel controller, d-plate.... etc. and be safe?




    .
    WRONG NOZZLE GO TO 85 MM

  9. #9
    Connecticut CrazyA's Avatar
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    Yeah, I have the 85mm ready to go, I was just trying to get my rpm's back up a tad from running the 14/20. I added the 87mm with the syphon and visibility spout plugged and gained about 75rpm.



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