scaling up Upshur engines?

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cscardinal

Journeyman Pattern Maker
Joined
Sep 15, 2012
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Hi folks. I'm interested in the single and opposed cylinder engines on the Upshur page ( http://hamiltonupshur.tripod.com/ )

I think they would both be excellent for an antique (pre 1920) motorcycle project I have in the works.

My question is, has anyone successfully scaled up the drawings 2x or 3x? I don't have pockets deep enough for an original period motor, so this might be just the ticket.

Thanks!

Chris
 

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