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Old 07-03-2008, 12:07 PM   #1
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Default 13 turn in a stampede

I wanted to upgrade the motor in my stampede, so i went to my local hobby shop. The guy sold me a 13 turn hpi driftmiester motor and said it would fly. I installed the motor and the car certainly does not pull wheelies like he said it would. I am using the stock 19 tooth pinion. Could that be the problem? The battery also got so hot it melted off its plastic coating. Thanks in advance.
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Old 07-03-2008, 12:14 PM   #2
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A 13 tun will definitely not pull wheelies.
I can ride my bike with no handlebars.
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Old 07-03-2008, 12:18 PM   #3
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19t is what you need , it will run great and wheelie
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Old 07-03-2008, 12:21 PM   #4
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How does the whole "turn" thing work? Is a 13 turn for higher top speed? If he wont take it back, can i just gear it real low for the same performance?
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Old 07-03-2008, 02:15 PM   #5
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yes, a 13 turn (assuming it's a double-wind) will certainly offer good power, more than a 19T unless it's a real cheapie - $25 or less. I'd drop your pinion gearing at least 3 teeth and try again.
Lower turns generally means more top-end RPMs, but they usually offer more low-end also.

If your motor got really hot along with the pack the brushes may be burnt too. If they're bluish tinted on the end replace them because once the lube is burnt out of them they'll wear your comm much faster.
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Old 07-03-2008, 02:37 PM   #6
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Overgeared for sure. Go down to at least a 15t pinion and try that. So long as your batts aren't ruined from overheating you should have good power. Definately should wheelie.

The lower turn the motor the more power you have, but you have to be able to gear it correctly and have batteries that can give it the current it needs.
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