I know little about I/O stern drives, but I'd think that as long as
you can expose a shaft to turn from the inside, an electric motor
should turn the prop.
In converting a Honda 7.5 outboard with a 0-2000 RPM motor, I found
that a speed reduction in the foot (~2.8:1) prevented high speeds and
gave about what you're after.
Cheers,
Craig
Victoria BC
http://www.TurquoiseEnergy.com/ ("Electric Hubcap" 5KW BLDC motor, controller)
> Has anyone successfully converted an I/O stern drive boat to
>electric power while retaining the original stern outdrive
>(Mercruiser/OMC)?
>
>I would like to convert a 20 to 23 foot runabout for use on a
>"electric motor" only lake. Maintaining the performance of the gas
>engine and running the boat on plane would not be a requirement.
> Top speed would only be 4 to 6 mph (wakeless speed).
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