> From: Greg Potts <greg@POTTSFAMILY.CA> > Date: Thu, 3 May 2007 12:32:58 -0400 > > A V-4 100cc engine from a 1985 Honda Magna or Sabre would be > excellent.... it produces a nice flat powerband and has more torque > available than any baywindow engine. If I were installing one I would > use a chain or belt to connect the transmission's input shaft to the > bike's crank, that way you could double the available torque through > 2:1 gearing. I don't think you can buy a belt that will survive Vanagon-moving levels of power for a long period of time. (At work, it's hard to keep a toothed belt between the 25 hp motor and transmission of a vehicle that weighs about two-thirds of what a Vanagon does.) A chain might work, but it might last better if it was enclosed and running in oil, instead of open like on a motorcycle. Hopefully the bike engine turns the "wrong" way - that might make it easy to use 2:1 reduction gears without an additional idler gear. Or, maybe you can do something simple to a Vanagon transmission to make it go the other way - like flipping the ring gear around back in splitty days. Matt Roberds |
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