Good idea but I am not so sure it could be done especially since there isn't enough room under the engine shell. Real smoke takes a heating element I would think that would take a lot of power from a battery. Of course the battery could be removed from the engine and wired to a tender or trailing car. I have never seen a smoke unit for say an HO engine so I wonder how big they are. I am guessing they use 12 volts to heat the oil to make smoke. Let us know what you come up with as I am curious. Maybe a 9 volt battery would work although I don't know for how long.
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