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10-08-2010, 08:17 AM
| #1 |
| Newbie Join Date: Nov 2007 Location: Springfield MA
Posts: 42
|  Speed/Torque difference between Crawler motors/Normal motors?
So I have a bunch of 21.5 and 17.5 motors from our onroad racing and was thinking of using them for a scaler build. I noticed that some brushless motors are labeled specifically for crawling. Is there a large difference between lets say a 21.5 crawler Novak motor and a 21.5 normal purple ring novak motor?
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10-08-2010, 08:23 AM
| #2 |
| owner, Holmes Hobbies LLC   Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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The novak has a resistor inside instead of a thermal probe. This allows the Novak ESC to run a small current through one of the phases for their hill brake feature. Otherwise they are the same. If you are not running a novak ESC then you won't even know the difference. |
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10-08-2010, 08:55 AM
| #3 |
| Rock Crawler Join Date: Sep 2010 Location: Little Rock, AR
Posts: 596
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throw a high torqe rotor in one you have and youll be good to go.
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10-08-2010, 09:08 AM
| #4 |
| owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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The larger diameter rotors also increase the startup speed because of the reduced air gap.
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10-08-2010, 09:15 AM
| #5 |
| Newbie Join Date: Nov 2007 Location: Springfield MA
Posts: 42
| aWESOME
Thats great to hear. Saves me some money from going out and buying new motors for the time being. Thanks!
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10-08-2010, 10:26 AM
| #6 |
| Quarry Creeper Join Date: Sep 2010 Location: too close to LRC.... Jealous????
Posts: 479
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I have an old LRP x11 brushless I just bought a 14mm rotor for, so I'll let you know the difference after I get it! but before it was stupid fast but still crawable
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