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Motor runs faster backwards - 12/29/2012 11:32 PM   
Rody63


 

Posts: 174
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Joined: 6/12/2007
Last Login: 5/24/2013
From: Livermore, CA, USA
Status: offline 		Hi all,

I just bought an old HPI RS4 mini (not micro). It included a Nosram Tomahawk esc,and a Nosram brushed Super Stock motor. I know the electronics are old, but they still work. The question I had is why would the motor run faster backwards then frontwards. It's kind of frustrating, because I know the motor goes faster than it's running right now, because it's better backwards. I've run across this with another car I have, but never knew why. I guess I could switch motor leads, but I was wondering why this would happen. Anyone know? Thanks for your help.



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RE: Motor runs faster backwards - 12/30/2012 2:19 AM   
phmaximus



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From: Adelaideaustralia, AUSTRALIA
Status: offline 		most likely u will have to change the wires around, very common, because some chassis require the motor to spin clockwise where otheres need anticlockwise.

u need to doubble check what direction are the brakes are kicking in too.
if the brakes are kicking in from reverse to forward, just swap the wires around,
otherwise the controller CH2 might need reversing

another thing to consider what throttle range are u using 50/50 or 70/30
and have u setuo the ESC to the radio gear


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RE: Motor runs faster backwards - 12/30/2012 2:23 AM   
phmaximus



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From: Adelaideaustralia, AUSTRALIA
Status: offline 		oh forgot to mention,

most Brushled ESC are 100% throttle and 80% reverse throttle, meaning the reverse power is reduced


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RE: Motor runs faster backwards - 1/1/2013 4:12 AM   
SyCo_VeNoM



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From: chicago, IL, USA
Status: offline 		reverse the throttle, reverse the motor leads recalibrate the ESC. That should make it run faster forward then reverse

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RE: Motor runs faster backwards - 1/2/2013 2:48 AM   
Rody63


 

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From: Livermore, CA, USA
Status: offline 		I tried swapping the motor leads, and then reversing the throttle on my radio, and although the car ran faster, it kept stalling. I could get the car moving again by hitting reverse momentarily, and going forward, but would keep cutting out. When I put things back the way they were before, the car ran perfectly, although slower. Kind of a bummer.


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