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The engine pictured in my Zenoah article was built by Brian Buaas. It had a 36 mm bore and 30 mm stroke with a 55 mm rod. It powered my gas scale boat to the NAMBA gas scale two lap record. There's no new magic in engine modifications. Spacers and/or cylinder machining may be needed to get everything to fit and get a decent squish clearance. There's no way to get the Zenoah combustion chamber volume close to that of a head button engine without adding a head button.Lohring Miller
The engine pictured in my Zenoah article was built by Brian Buaas. It had a 36 mm bore and 30 mm stroke with a 55 mm rod. It powered my gas scale boat to the NAMBA gas scale two lap record. There's no new magic in engine modifications. Spacers and/or cylinder machining may be needed to get everything to fit and get a decent squish clearance. There's no way to get the Zenoah combustion chamber volume close to that of a head button engine without adding a head button.
Lohring Miller
