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wayneb
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12.14.2008, 05:12 PM

I'm thinking about converting my savage to a brushless system since I have a feigao brushless motor just collecting dus on teh floor or desk or wherever it gets moved to next. and since I can't get the engine in it to run anyway, I just thought of doing a 1/8 scale brushless. but I have a question. can I gear the motor to have less torque so that I can keep my three speed tranny in the truck for a little while? until the savage flux comes out. and then i can use the tranny from it in my savage. or lock my other two speed tranny?
   
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Janezki
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12.15.2008, 05:01 AM

Gearing doesn't much effect the torque, use lower voltage if plan to have mercy on your tranny.

I presume that's an XL Feigao you have there, what is it's kv rate?

If you have a second tranny, then why not locking it - then you have reverse plus motor brake, depends from your ESC ofcourse.
   
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BrianG
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12.16.2008, 11:13 AM

Quote:
Originally Posted by Janezki View Post
Gearing doesn't much effect the torque, use lower voltage if plan to have mercy on your tranny.
Actually, gearing does have quite an effect on torque. If the motor has say 0.3 fl-lbs of torque at the shaft for a given amperage, gearing down 20:1 increases the gearing factor, so it's 6ft-lbs of torque. Reducing the gearing (increasing the ratio) increases torque at the wheels.
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Janezki
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12.16.2008, 12:38 PM

Oops.. I was thinking of torque that is effecting the transmission, but thanks for correcting me.
   
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