Well, you know how much power you want, but what you don't know is what to gear it so that when you UP the voltage, the final result, Power (watts), stays the same
This is so wrong. Power=Torque x RPM and P=V x I Up the voltage : more power regardless of gearing. Gearing changes the ratio of torque and rpm, either up/down or down/up respectively.
To understand better, maybe knowing how a
Prony Brake works will help.
Infact you can easily make the bottom version:
[link=http://my.voyager.net/~jrrandall/PronyBrake/PronyBrake.html]prony brake[/link]
or this version:
[link=http://www.geocities.com/koneheadx/measuringshaftpower.html]prony brake II[/link]
If you build either of said brakes, this discussion becomes mute and proven/disproved through reality.
This is Matthew007 and I approve this message.
HAPPY NEW YEAR!