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Old 12-12-2004, 11:12 AM   #1
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Gear ratios in RS4 Pro4


I finnished building a RS4 Pr4 about two weeks ago. I took it out with a Trinity D6 8x1 motor and almost burned my hand off. I'm not sure what is wrong because I followed the guidlines for gear ratios from the manual.

In the meantime I ordered and received a LRP Fusion Fase 5 8x2 motor. Now before I put this baby in, can anybody please help me with gear ratios. The manual says I need to run a ratio of 8.9-9.0 for a 8 turn motor, which I'm doing with the Trinity, and it still fries the motor!!

I'm running a 98T spur, with a 27T pinion.
Please help, I dont want to burn the new motor.


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Old 12-12-2004, 12:19 PM   #2
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You need to run a heatsink clip or heatsink clip/fan. Also, go on ebay and order the motor air scoop. This should lower the temp, but it's still going to be hot. As long as your wires stay soldiered and your magnets don't seperate, the gearing is fine.
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Old 12-12-2004, 12:43 PM   #3
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Hi, thanks for the reply. I've got the heatsink, haven't seen the wind soop yet, might be an idea. I'll go check for one now.
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