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slash upgrade questions

Old 09-04-2015, 06:30 PM
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apachehellrazer
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I have a 2wd Slash Raptor that I killed the brushed motor in. I am going with a cheap hobby king brushless combo to get it moving again. The problem I am having is what gearing should I be running. I killed the brushed motor due to running a much larger wheel and tire combo. I do not want to kill this one as well. Thanks in advance for the help
Old 09-05-2015, 05:27 PM
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Maj_Overdrive
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If you can provide the tire diameter, the size and Kv of the motor as well as the battery voltage (2s, 3s) you'll be running I can do some gearing calculations that'll get you close.

With any new combination you'll want to check motor and esc temps with a temp gun. They're not expensive, especially compared to the cost of a new motor and/or esc. If your new motor is similar in Kv to the VXL setup lookup the stock VXL gearing and drop a few teeth on the pinion to account for the larger tires. If Kv is higher drop a few more teeth on the pinion or vice versa and that should be really close too. Then just check temps every couple minutes while running, which as I said earlier you should do with any new combo or when you make a change to the combo.

Last edited by Maj_Overdrive; 09-05-2015 at 05:30 PM.
Old 09-06-2015, 03:37 PM
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jkdv8
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Adding a fan doesn't hurt either.

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