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  1. #1
    R3_killa's Avatar
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    GPR-HO Conversion - Project-R

    Took on a little project recently and decided to share on the forum.

    I've had my GP1200R sitting around which was previously a GPR-SHO and decided to go with the 1.8L HO platform for more practical use along with reliability. I just found the GPR-SHO annoying having to play with the throttle off the line until fully planed.

    The following is installed:

    SHO gas tank with sending unit
    2018 FX-Cruiser HO engine/harness
    2013 VXR cluster/gauge
    Riva ribbon delete
    Riva air-filter
    DIY oil/engine cooling
    WORX engine cooling anode
    WORX pump cooling plate
    R&D 2.5 degree 87mm exit nozzle (might consider 2degree wedge)
    GP1300R steering cable
    SHO steering nozzle
    2010 FZR oem prop (13/19)
    SHO pump
    FX-SHO driveshaft
    Triple pipe water-box with 5'' exhaust
    Dean's reflash - 8500rpm limit
    Jim's modded rideplate
    SS intake grate

    I've gotten to the point where I could start and test for possible water leaks and all checks out. I've just received the reflash back from Dean's where he disabled the RiDE system and adjusted the tune based on my current mods. The craft is currently being painted and should be done before the end of the month to do some top speed testing. I'm hoping for 75mph but will be happy with anything 70+[ATTACH][/ATTACH]Click image for larger version. 

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    Last edited by R3_killa; 09-29-2021 at 05:55 AM.

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  3. #2
    R3_killa's Avatar
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    GPR-HO Conversion - Project-R

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    Last edited by R3_killa; 09-19-2021 at 07:55 AM.

  4. #3
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by R3_killa View Post
    Ö 1.8L HO platform
    Ö
    2010 FZR oem prop
    SHO pump
    Ö
    Why are you going to use an impeller from a supercharged model?

  5. #4
    R3_killa's Avatar
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    Quote Originally Posted by K447 View Post
    Why are you going to use an impeller from a supercharged model?
    Itís pretty much a 13/19 based on this spec sheet so will be a good starting point.

    Click image for larger version. 

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  6. #5
    R3_killa's Avatar
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    Sneak peak

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  7. #6
    Steve-m31164's Avatar
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    The 800 intake grate wont help with your cavitation, get a 1200


  8. #7
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by R3_killa View Post
    Itís pretty much a 13/19 based on this spec sheet so will be a good starting point. Ö
    Another GH member reported the following for his 2021 FX with HO engine, running at 1200 foot elevation with an incorrect Solas impeller intended for the SHO model.

    Quote Originally Posted by skeeterzx225 View Post
    Ö the 1.8HO engine will peak at 6700 rpm's Ö with that SHO prop YS-CD-13/22 Ö
    http://greenhulk.net/forums/showthre...=1#post3143704

    That means the SHO impeller was overloading the engine enough to bring peak RPM down by about 1,000 which would reduce top speed by several mph, maybe 5-8.

  9. #8
    R3_killa's Avatar
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    Quote Originally Posted by Steve-m31164 View Post
    The 800 intake grate wont help with your cavitation, get a 1200
    Is this the 800 grate? When I bought it a few years back, was made for 1200 in SS for high speed conversions. Click image for larger version. 

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  10. #9
    R3_killa's Avatar
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    GPR-HO Conversion - Project-R

    Quote Originally Posted by K447 View Post
    Another GH member reported the following for his 2021 FX with HO engine, running at 1200 foot elevation with an incorrect Solas impeller intended for the SHO model.



    http://greenhulk.net/forums/showthre...=1#post3143704

    That means the SHO impeller was overloading the engine enough to bring peak RPM down by about 1,000 which would reduce top speed by several mph, maybe 5-8.
    I think youíre comparing apples to oranges hereÖ

    The article states they were using a Solas 13/22 - Iím using an OEM SHO impeller which is basically a 13/19Ö

    Iím going based on persons who have actually done this same setup and donít see why the same results canít be achieved.

    Click image for larger version. 

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    Last edited by R3_killa; 10-09-2021 at 07:09 AM.

  11. #10
    R3_killa's Avatar
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    GPR-HO Conversion - Project-R

    Oh happy day!

    [ATTACH]47Click image for larger version. 

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    Last edited by R3_killa; 10-10-2021 at 06:03 AM.

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