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Old 06-17-2008, 02:37 AM   #1
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Smile proper gearing @ WLRC

i have a hot bodies cyclone moor speed and for the moment i have a ratio of 8.7 30 pinion and 108 spur (64 pitch of course) and my motor novak 4.5 brushless runs a a bit hot is it normalle or is it my gearing wrong i race at west london

thanks for your advice
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Old 06-17-2008, 06:44 AM   #2
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Sounds a bit out.

When i have raced there i geared about 7-7.5 overall ratio on a 3.5 brushless.
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Old 06-17-2008, 06:47 AM   #3
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You need top be looking for a ratio around 6.7.
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Old 06-18-2008, 12:30 AM   #4
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I've been anywhere from 7.5 to 6.5 (ish) with the 4.5 in. I think you're geared to high at 8.7

Remember that gearing too high OR too low will increase the amount of heat in the motor at the end of a run. There's definitely a sweet spot
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