2 Engines Twice the Vibration?

Discussion in 'Motorized Bicycle General Discussion' started by recon chris, Sep 12, 2012.

  1. recon chris

    recon chris New Member

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    I'm thinking of mounting two engines on one bike. They will both be automatic clutch engines of the same type. I was wondering if the lack of linkage between the two engines will cause them to run in and out of ocolation with eachother poably amplifying vibrations?
     
  2. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    That is entirely possible. You'll just have to use two throttles, and sync them up like a twin engine plane.
     
  3. Ludwig II

    Ludwig II Well-Known Member

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    One of the cable splitters (1 cable goes in, 2 come out) used on 2 strokes with an oil pump will have them opening and shutting together. It's just a matter then of small adjustments of them to work absolutely together.
     
  4. JonnyR

    JonnyR New Member

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    this is a cool idea
     
  5. Ted

    Ted New Member

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    Recently I saw a show where a guy had 2 V8's in a hot rod, he said his biggest problem was syncing the engines which is extremely important because one engine can/will destroy the other. Now then,,if this would apply to 2 two cycle engines I don't know. he ended hooking up the engines together and were phased to fire opposite of each other.

    FWIW Honda used a twin cable throttle control that was controlled by a single cable.
     
  6. JonnyR

    JonnyR New Member

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    its easier for a car because if you start with marine engines because they come in both rotations you can make then counter rotate with each other
     
  7. Ted

    Ted New Member

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    Well that's true but they have separate drives and are independent of each other.

    I do wonder however that if the bike engines were hooked together 180 deg's to each other if vibrations would be canceled out.
     
    #7 Ted, Sep 14, 2012
    Last edited: Sep 14, 2012
  8. JonnyR

    JonnyR New Member

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    in the v twin posts there are pics of a twin engine bike
     
  9. JonnyR

    JonnyR New Member

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    im currently looking into the multi cylinder options they are throwing out there
     
  10. rustycase

    rustycase Gutter Rider

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    there's pics here on the board of a side-by-side HT powered bike...
    ???double trouble???? search might bring it up???
    a member built it.
    rc
     
  11. Ted

    Ted New Member

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    V Twin?? can't find it.
     
  12. rustycase

    rustycase Gutter Rider

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    NO, it's a side-by-side... and they run to a common jackshaft.
     
  13. JonnyR

    JonnyR New Member

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    they are posting twin uprights there im thinking about one if the power and money is right
     
  14. lowracer

    lowracer New Member

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