Documents » Tamiya "Toy" Motor Testing by Adam Borrell (a.k.a nexisnet) »
6. The Verdict
If you want more speed, you can have it, but will pay dearly for it in decreased operational life. That isn’t to say don’t do it, keep in mind that most hobby robots are run in short bursts infrequently, and you can replace the motors (Tower Hobbies has them here for $2.39). It looks like somewhere between 4 and 5 volts gives you the best payoff, but beyond that you’re really doing some damage. Speaking of damage, I have a nice little motor graveyard going on my desk:
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