4600Kv / 5700Kv the same???
07-01-2010 | 04:28 PM
#1
Thread Starter
Tech Adept
Joined: Nov 2009
Posts: 220
From: Camarillo, California
4600Kv / 5700Kv the same???
Hi there,
Hopefully I'm posting my question in the correct thread.
My friend and I have been running HPI Blitz's around our neighborhood streets for the past few weeks , both of us using Castle Sidewinder 1:10 / 4600 Kv motor combos. A sale at our LHS forced me to purchase the 5700 motor, hoping to see a fairly good increase in performance. To my surprise, absolutely no increase in top speed
I'm using a 4000 mah / 20c 2S lipo with stock gearing. What am I missing??? Why would these different powered motors have the same performance? Does the 5700 Kv motor just allow for higher gearing (hence more speed)? Is the 20C battery limiting the amp flow? I'm lost 
Thanks for your input,
SoCal
Hopefully I'm posting my question in the correct thread.
My friend and I have been running HPI Blitz's around our neighborhood streets for the past few weeks , both of us using Castle Sidewinder 1:10 / 4600 Kv motor combos. A sale at our LHS forced me to purchase the 5700 motor, hoping to see a fairly good increase in performance. To my surprise, absolutely no increase in top speed
I'm using a 4000 mah / 20c 2S lipo with stock gearing. What am I missing??? Why would these different powered motors have the same performance? Does the 5700 Kv motor just allow for higher gearing (hence more speed)? Is the 20C battery limiting the amp flow? I'm lost Thanks for your input,
SoCal
07-02-2010 | 05:14 AM
#2
Tech Fanatic
iTrader: (1)
Joined: Jun 2007
Posts: 823
From: Adrian, MI
Go down 3 teeth on your pinion with the 5700.
I think your stock pinion is to big even for the 4600.
If you need more speed and your temp is good add some timing, it makes a big difference.
I think your stock pinion is to big even for the 4600.
If you need more speed and your temp is good add some timing, it makes a big difference.
Last edited by Lazer Guy; 07-02-2010 at 05:39 AM.
07-02-2010 | 07:26 AM
#3
Thread Starter
Tech Adept
Joined: Nov 2009
Posts: 220
From: Camarillo, California
I always thought that the larger the pinion, the higher the top end. Would it be that the larger motor doesn't have the torque of the smaller motor to turn the larger pinion???
Thanks again!
07-02-2010 | 08:11 AM
#4
Tech Fanatic
iTrader: (1)
Joined: Jun 2007
Posts: 823
From: Adrian, MI
Wow, my logic is all screwed up
Up to a point your logic is right, you should use a smaller pinion to let the motor wind up all the way and add timing well looking at your motor, ESC and lipo temperature. \
If your ESC is hot your pinion is to big.
I always thought that the larger the pinion, the higher the top end. Would it be that the larger motor doesn't have the torque of the smaller motor to turn the larger pinion???
Thanks again!
Up to a point your logic is right, you should use a smaller pinion to let the motor wind up all the way and add timing well looking at your motor, ESC and lipo temperature. \
If your ESC is hot your pinion is to big.
I always thought that the larger the pinion, the higher the top end. Would it be that the larger motor doesn't have the torque of the smaller motor to turn the larger pinion???
Thanks again!
Last edited by Lazer Guy; 07-02-2010 at 08:26 AM.
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