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  1. #1

    Join Date
    Jan 2011
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    gp 1300 D plate mod

    Is there any advantage to opening up the D-plate on a 2006 gp 1300 ? What are the side affects if done ? Thanks


  2. #2

    Join Date
    Aug 2006
    Location
    Indiana
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    +1
    81
    Most do not open the D-plate up until ported and big bored like to 1390. Also it depends on which D-plate you have, one brand is already larger than the other brand. You will have to search that cause I don't remember which. As to the question, I think enlarging can reduce temps at high rpm but at the potential loss of some rpm.

  3. #3

    Join Date
    Jan 2011
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    Australia
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    Thank You for the fast reply .

  4. #4
    XL1200Ltd-Keith's Avatar
    Join Date
    Aug 2005
    Location
    Arizona
    Posts
    506
    R&D = 1200

    Riva/Group K = 1300

    Jetworks have different size openings for 1200 & 1300 motors

  5. #5
    njk4o5's Avatar
    Join Date
    Jan 2009
    Location
    Boston, MA
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    115
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    12
    why is it a D-plate instead of an "O-plate". the D shape seems like it is a big bottleneck in the pipe

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