Originally Posted by Sushi Boy
Well.... lets say you have 2 gear setups that have the same overall ratio... but one has a smaller pinion and spur, and the other has a bigger pinion and spur. The one with the smaller pinion and spur will be less efficient, because there is less leverage on the wheels, thus makign it accelerate maybe a little smoother. When you use the bigger pinion and spur the transfer of power will be more effiicent, and possible accelerate harder. Thats just what I was told though... so I always try and get the biggest pinion and spur on the car as possible. I've never been able to feel a difference though.
-Korey
That is absolutely true but until you get to very small pinions (15 or less teeth) the difference is insignificant and offset by the lower rotating mass of a smaller spur and pinion gear. Gears are very efficient.
The Biggest difference is the position of the motor in the pod, ie near to the axle or to the front of thepod. The same gearing using an 88t vs 100t spur moves the motor a reasonable distance.
-Scott