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  1. #1
    05NNJ1300R's Avatar
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    let me know what you guys think

    These are the mods I have let me know what you think 2005 GP1300R, IR VF3's, IR 3deg, Riva race filter, R&D 800 grate, IR Mod 4 R&D ride plate, IR Jetworks kit, Pump seal kit, Tiny Tach, Head Milled .035, Solas DF14/20 prop, Riva EFI Controler 6-5-1-6.5 ,Riva blue tube exhaust,4 feet of hull sanded with 600grit, 270lb rider, compression 120,115,105 , 120 hours, max rpm on flat water 7120rpm don't have a gps or radar reading yet. I think is time for piston and rings soon with the low compression. I am running 93 octane fuel. I want to do the porting and piston and rings together but want to wait till winter so I dont lose ride time. Does the rpm seem good for the mods anyone know what type of speed I should expect. Also is there any other mods I am missing that are worth wild to do?

    Thanks
    George
    Last edited by 05NNJ1300R; 07-29-2008 at 07:04 PM.


  2. #2
    with a DF14/20 prop and your mods rpms should be alot higher...

  3. #3
    Never say never KirkF350's Avatar
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    Quote Originally Posted by danny1496 View Post
    with a DF14/20 prop and your mods rpms should be alot higher...
    Ditto. You compression is not what it should be either. Compression on an 05 without milling the head should be around 125 - 135 psi.

  4. #4
    Im running a 1200 carb setup with the same exact engine mods with 150 psi compression and seeing about 7210-50 with the ho pump and 14/20.

  5. #5
    NJ Kid GP1300R's Avatar
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    Quote Originally Posted by 05NNJ1300R View Post
    These are the mods I have let me know what you think 2005 GP1300R, IR VF3's, IR 3deg, Riva race filter, R&D 800 grate, IR Mod 4 R&D ride plate, IR Jetworks kit, Pump seal kit, Tiny Tach, Head Milled .035, Solas DF14/20 prop, Riva EFI Controler 6-5-1-6.5 ,Riva blue tube exhaust,4 feet of hull sanded with 600grit, 270lb rider, compression 120,115,105 , 120 hours, max rpm on flat water 7120rpm don't have a gps or radar reading yet. I think is time for piston and rings soon with the low compression. I am running 93 octane fuel. I want to do the porting and piston and rings together but want to wait till winter so I dont lose ride time. Does the rpm seem good for the mods anyone know what type of speed I should expect. Also is there any other mods I am missing that are worth wild to do?

    Thanks
    George
    Hi George I have a full stage1 on my GPR I get 68.0 MPH let us know your numbers thanks.

  6. #6
    05NNJ1300R's Avatar
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    I think my pistons and rings are going away I was 135 compression when I first did the head but the motor was 115 compression befoe the head i picked up 20 with the head but i think the rings have de-graded. Can you see what cylenders you have without taking them appart so I can order the parts.

  7. #7
    Never say never KirkF350's Avatar
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    Quote Originally Posted by 05NNJ1300R View Post
    I think my pistons and rings are going away I was 135 compression when I first did the head but the motor was 115 compression befoe the head i picked up 20 with the head but i think the rings have de-graded. Can you see what cylenders you have without taking them appart so I can order the parts.
    Yes. There should be a # stamped on the exhaust side of the cylinders up on top.

  8. #8
    DAGO RACING CREW 97GPSLEEPER's Avatar
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    Your RPM's would be higher if your compression was where it should be. The motor is down on power so it can't turn the prop any faster.

  9. #9
    05NNJ1300R's Avatar
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    Quote Originally Posted by KirkF350 View Post
    Yes. There should be a # stamped on the exhaust side of the cylinders up on top.
    I found the # 6 looking from the exhaust side

    George

  10. #10
    just take the head off and have a look make shore cylinder is ok before u order the pistons...

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