#1 Increase the overall acceleration of
your vehicle
#2 Decrease the top speed of your vehicle.
By increasing the number of teeth on
your pinion gear, you get the opposite effect.
The concept is reversed if you are changing the spur
gear. Depending on the size of the gears, changing the
pinion gear by 1 tooth is approximately the same as
changing 3 teeth of the spur gear.
Now for the good stuff: Before you put your car on
the track, study the design of the track. If the track
is full of turns, go for a pinion gear that will give
you more acceleration. The reason behind this is that by
the time your car could reach top speed, the next turn
would come up and your car will slow down again. On the
other hand, a track with many straight and long paths
requires a pinion gear that will give you more top speed
while sacrificing acceleration. The reason behind this,
is because a straight track will give you a longer
period for your car to travel at top speed.
Just reading this, you could well be thinking that
you should just go out and buy the largest or smallest
(depending on if you want top speed or acceleration)
that will fit in your vehicle. The problem with that is
that you can actually destroy a motor by not gearing it
right. If you run a gearing that is under-geared, you
wont be getting the best performance and your motor will
carry a huge load on acceleration.
On the other hand, if you are over-geared, you can put
excessive load on the motor and speed control as is
tries to reach top speed. |
