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  1. #1

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    GP800R conversion

    I was wondering if you have tried the non powervalve cylinders from the 1300R on the 800.


  2. #2
    Moderator RX951's Avatar
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    League City, Texas
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    hhmm.....good question...good inquiry

  3. #3

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    Fort Mohave Arizona
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    We have not, and I'm not aware of anyone that has.

    We did prototype our 87mm big bore on a 98 GP800 (927cc). It had great overall power, but was only marginaly faster than a well prepared 800cc Sleeper mod. After much testing and fiddling, we surmised that the stock GP800 exhaust just couldn't let the big bores breath sufficiently... as a result we didn't pursue it any farther.
    Respectfully, Harry Klemm


    Quote Originally Posted by birel33 View Post
    I was wondering if you have tried the non powervalve cylinders from the 1300R on the 800.

  4. #4
    cfgp927's Avatar
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    Dec 2005
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    622
    I purchased Harry's BB cylinders (prototypes), and let me tell you that with twin pipes they are fabulous! Thanks for the great deal Harry. I'm still tickled to death every time I crack the throttle. The twin pipes definitely help the cylinders reach their full potential.
    M

  5. #5
    My son (mohawk man) jeffsntx's Avatar
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    Belton TX
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    http://www.x-h2o.com/showthread.php?t=15361

    Here is a good looking 1200cc conversion. I know its not a 1300 but........

  6. #6

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    I do wonder what my costs would be in putting 1300 cyl. non PV and twin pipes on. Then there is the whole tuning that engine. I wonder if you would even have to runtwin pipes.

  7. #7
    greg's Avatar
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    Jan 2006
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    San Antonio TX
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    26

    gp800

    if you are needing the twin pipes I got a set with the riva cdi and a new set of novi carbs and pumps. pm me if intrested

  8. #8

    Join Date
    Jul 2006
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    milan
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    interested to twin pipe GP 800
    email [email protected]

  9. #9
    how about those cylinders on a tripe pipe gpr
    now that would be impressive
    good luck keeping a crank in it

  10. #10
    cfgp927's Avatar
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    Dec 2005
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    Birel,
    You DON'T need the twin pipes to go BB on the 66E motors, but you'll never realize the full potential of the motor until you DO! I've got two BB 66E motors and both have run singles as well as twins....I'll only have mine with twin pipes.
    Mike

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