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Thread: The XB4R build begins...

  1. #71
    Senior Member
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    Apr 2012
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    357
    .that's my dream bike, power and short wheel base for handling, I'd imagine it would probably almost be to short for that rotax....
    Yerp... That sucker is a big 'un.
    My dream bike would be an XB1125SXcr with the 1125R front fairing. With only an open pipe for an exhaust. Ha! I wonder if it's even possible to fit the damn thing inside the frame.

    This build looks like it will be LOADS of fun to ride as well. I wanna see it done! With track footage!

  2. #72
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    Jan 2009
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    My Rat Blastard weighed in at 340lbs wet. Factory spec is 360lbs dry, plus ~21lbs of fluids to make it "wet" (17.5lbs gasoline + 3.68lbs oil). That means I've eliminated ~41lbs from the bike; although I've gained about 10-15lbs myself since the process started.

    It's getting fuel injected soon to go with the XB head/piston/cams. Dyno will be shortly thereafter.

    Waiting to see what this project weighs.

  3. #73
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    Since this thread died, here's my progress:


    Custom axle is being turned and will have it road-going by February.

    Engine is EFI and runs fine (been EFI for a couple years now). Front end and electronics are all squared away. Just need to add a couple heim joints, foot controls and rear axle. Already put on a new drive pulley and have a belt fitted, just haven't taken new photo.

  4. #74
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    May 2016
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    Central Soviet state of new jersey.
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    It's cool that your still after it !

  5. #75
    have you had it dyno'd?

  6. #76
    Junior Member
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    Nov 2016
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    4
    Nice, looks like too much fun.

  7. #77
    Senior Member
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    Quote Originally Posted by jimmy View Post
    have you had it dyno'd?
    Nope. Kept procrastinating, then the nearest dyno closed shop. I've since moved and am close to some other Buell guys with a dyno and FAST Buells, so I'll be taking it there once it's ready. They're eager and waiting for me to finish, want me to go LSR with them.

    This is their Blast:

    Somewhere close to 80hp, if he hasn't topped it yet.

    and their S2:

    1250 with turbo and nitrous

    They're pushing me to boost it, but I need to get it road-worthy as it sits, then I'll sort out the turbo and head for the salt.


    Last edited by jetlee; 12-31-2016 at 04:54 AM.

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