OSCAR's Final Mod Completed!

Discussion in 'Whizzer Motorized Bicycles' started by Hal the Elder, Nov 18, 2012.

  1. Hal the Elder

    Hal the Elder Member

    Today I completed OSCAR's final modification: Converting his straight horizontal exhaust pipe into an upswept pipe, something I've always admired on the Whizzers my high school buddies rode in the early 1950's.

    I cut the stock pipe just to the rear of the crank hanger, then wrapped 0.010" shims around the 2" stubs of both sections, so they would make a tight fit into the 1-1/4" ID
    6" long piece of stainless steel flex tubing cut from the 12" piece I ordered online.

    The assembly was completed with four stainless steel radiator hose clamps, 2 on each stub. (See photos)

    I mounted the tailpipe higher up to a rear frame member using the stock hardware.

    The exhaust tip is now 12" closer to my ear than before, making it quite a bit louder!


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    Last edited: Nov 18, 2012

  2. wheelbender6

    wheelbender6 Well-Known Member

    The upsweep makes it look like its moving while standing still.
  3. Hal the Elder

    Hal the Elder Member

    Yep, that's what is known as "Streamlining"!

    (Shaken, not stirred.....)

  4. Mike Notigan

    Mike Notigan Member

    Very nice, Hal!
  5. jbcruisin

    jbcruisin Member

    It is nice Hal.
  6. Hal the Elder

    Hal the Elder Member

    Thanks, all.
    HOWL (phoenetic for HAL)