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Old 06-19-2008, 04:26 PM   #1
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Default gearing for 17.5 and 13.5

hey im new to the brushless craze and need gearing for a 17.5 and a 13.5 the longest strait is 165 feet in length i have a 007 thanks guys for any help
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Old 06-19-2008, 04:33 PM   #2
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Wow thats longer than half a football field. I'm gonna run between 4.4 -4.5 on the novak 13.5
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Old 06-19-2008, 04:49 PM   #3
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There are so many variables, so play it safe with the ratio's below initially, temp the motor, then adjust:

13.5 FDR = 4.5 to 4.8
17.5 FDR = 3.8 to 4.4

Track temperature, tire type and grip, and battery type all play a role in motor temperature, so measure after 5-minutes and try to get in the 150-170F range.
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Old 06-19-2008, 05:00 PM   #4
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Default gearing

trac has pretty good grip and im using 5000 lipos trac temp not sure yet we run rp 30s and rp 36s hope that helps some more
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