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Old 05-14-2008, 11:35 PM   #1
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Now that the weather is getting warmer. I'm paranoid about burning up my motor. I want to place an external fan but I'm not sure If I point it in the middle of the can or towards the rear of the motor......
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Old 05-14-2008, 11:43 PM   #2
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my guess would be across the top if the motor to help keep the can cooler .. or even try a motor heat sink with a fan mount .. I myself have never had much luck with heat sinks . to me they retain too much heat and cause problems ..
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Old 05-15-2008, 12:02 AM   #3
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What brand of motor?
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Old 05-15-2008, 03:26 AM   #4
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My opinion is even you put 10 fans but with the wrong gear ratio, the brushless motor will just gone over heating internally...

I have seen brushless motor gone even with low temp at motor casing temp approx 60-70deg C measured with the temp gun, not sure temp inside the motor...

I still trying to master the art of gearing the brushless.. any rule of thumbs to help??? i.e., shall we gear the same running with 5 cells 3.5T with 6 cells 4.5T with 6 cells 7T brushed....
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Old 05-15-2008, 09:09 AM   #5
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Originally Posted by syndr0me View Post
What brand of motor?
I've been running the Novak and Orion 10.5 motors with LRP speedo

I don't really have a problem with the Novak it's more with the Orion that seems to build heat....
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Old 05-15-2008, 09:18 AM   #6
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Ah, okay. I'm not sure how well fans work on BL motors, but Novak's heatsink (that replaces the center ring) seems to work amazingly well if you ever have heat problems with that motor. I don't know if it will fit on the Orion's stator.
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Old 05-15-2008, 09:19 AM   #7
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Quote:
Originally Posted by syndr0me View Post
Ah, okay. I'm not sure how well fans work on BL motors, but Novak's heatsink (that replaces the center ring) seems to work amazingly well if you ever have heat problems with that motor. I don't know if it will fit on the Orion's stator.
they will fit you just have to shave some material off the inside of the ring (not much)
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