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Old 03-10-2007, 11:09 AM   #1
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Default Swapping rotors on Velociti motors

May be a dumb question but cannot find an answer. Can you swap a 4.5 sintered rotor into a 7.5 motor? I know you can swap rotors on brushed motors, but am wondering if you can for brushless as well.

Thanks.
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Old 03-11-2007, 03:34 AM   #2
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I asked the same question & Novak's response is below in bold. BL & Brushed are the opposite when you want more/less power (can vs. armature (rotor)).

The “winds” in a BL motor are in the can. They make up whats called the “stator”. The Rotor, is the armature. It’s the magnet and the shaft that sticks out. Changing rotors has an effect on power, but not like changing winds does.

I think basically in comes down to:
-Changing the armature in brushed is where the power comes from because that's where the winds are. A can is a can for the most part.
-Changing the can for BL is where the winds are so that's what you would change for more/less power. A rotor is a rotor?

Bottom Line: Yes you can switch rotors but you won't see much improvement.
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Old 03-11-2007, 05:20 AM   #3
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It is the same indentical rotor in all Velociti motors. Yes it is the same and well worth the change too. Alot cooler temps on the ESC and the motor.
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Old 03-11-2007, 03:26 PM   #4
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Makes sense. I never tore one apart to look. Figured if i would have it would have been self-explanatory. The main reason was i believe i saw different sintered rotors for each model of BL motor.

Thanks for clearing it up!

Now i have to find a 5.5 to put in the x-5! Woo [email protected]
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