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Old 08-17-2010, 05:10 AM   #1
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Default Understeer and brushless motors

I am just wondering if people have had experiences with different brushless motors causing understeer an a general lack of responsiveness in their cars.

My car always seems to have a push and it gets worse at high speed. It is also slow to respond to direction changes and I have to slow down alot for corners when I know they can be taken faster.

Before you go "post your setup" I have already been through that which is why I am asking about the effects motors can have.

Thanks

Josh
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Old 08-17-2010, 05:15 AM   #2
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Your problems can be solved with 5 letters Josh

J,R,X,S and R. All of a sudden push and especially unresponsiveness will be a thing of the past.
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Old 08-17-2010, 05:22 AM   #3
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Ben's T3 always turns in better than mine, even his 007 does come to think of it. Might have to play with initial brake on the LRP on Friday.
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Old 08-17-2010, 05:42 AM   #4
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Most likely it is the drag brake that causes this feeling. A brushless motor has effectively zero compared to a brushed.

On my Speed Passion ESC I am always running between 10 and 25% drag brake. It gives the feel of a progressive deceleration off the throttle, without drag brake the car just rolls uncontrollably like a nitro.
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Old 08-17-2010, 06:38 AM   #5
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I agree it's the drag effect, or lack of it on BL motors.

Some BL motors have more drag on their rotors (magnetically), which makes them harder to turn by hand. If you use one of these then when you are off power that same effect is a bit like drag brake.

Could also be the bodyshell giving you 'push'

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Old 08-17-2010, 07:09 AM   #6
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Mazda Speed 6 although I have heard that you can get more or less steering by moving the shell backwards and forwards.
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Old 08-17-2010, 07:47 AM   #7
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Have you tried a LTC? I wished I had that with me on the weekend.
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