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Thread: 2008 GPR

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    Whats that whistling noise? jtskier11's Avatar
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    2008 GPR

    So GPR masters............ What do you have to do to really make a GPR RUN????????????


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    Moderator OsideBill's Avatar
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    1. Read
    2. Search
    3. read some more

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    Moderator OsideBill's Avatar
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    D-plate, Grate, Jims Plate. to begin with

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    Greenhulk Grasshopah (DRC) HallPass's Avatar
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    tunnel reinforcement (gpr)

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    Ya Boy Trevor bajaeater's Avatar
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    love the free flow sound. heads and efi controller.

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    Whats that whistling noise? jtskier11's Avatar
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    Ive searched.... Seen the remedial stuff.. But does it really take case porting to make them scream????

  7. #7
    Quote Originally Posted by jtskier11 View Post
    Ive searched.... Seen the remedial stuff.. But does it really take case porting to make them scream????
    No, most don't do case porting and it makes no difference on top end rpm's.

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    Moderator OsideBill's Avatar
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    Quote Originally Posted by jtskier11 View Post
    Ive searched.... Seen the remedial stuff.. But does it really take case porting to make them scream????
    I didn't case port mine. I did bore and port my cylinders though and had my head reworked. and yes this after you do all the "remedial" stuff is what makes them scream.

  9. #9
    Whats that whistling noise? jtskier11's Avatar
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    Quote Originally Posted by OsideBill View Post
    I didn't case port mine. I did bore and port my cylinders though and had my head reworked. and yes this after you do all the "remedial" stuff is what makes them scream.
    Well by remedial I meant the basic stuff.

  10. #10
    icedog10's Avatar
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    Send it to WFO.

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