Different Pinions?

[whites75]

I noticed all these different pinions, which I assume are just different amounts of teeth on them but how do different pinions effect the car? is it best to use certain pinions for certain track surfaces?

I just use the one that came in my bmax2 but curious to know about different ones and weather and if there is any difference on the car etc
cheers

[CHEVY]

buggy you only need 48dp

[SlowOne]

Pinions alter the gear ratio. The gear ratio needs altering so that the available torque from the motor is used effectively. It would be unusual to change ratio for track surfaces, but it would be usual to try different ratios for different track layouts.

Ratio changes usually go with motor changes. The less winds the motor has (6.5 turn is less than 10.5 turn, for example) the smaller the pinion must be fitted. Also, ratio changes go with the amount of fixed timing you have on the motor; more timing usually needs a smaller pinion.

If you are not changing your motor you are usually not changing you gear ratio and therefore not changing your pinion. If you don't have a range of motors to use don't bother buying a load of pinions. When you do change your motor ask around for what ratio people are running, that allows you to choose the right pinion and saves buying lots of them. HTH

[whites75]

ok that's great I had a new motor fitted for me last night, which is an Orion vortex pro 11.5t. Am I sticking with the stock pinion that came with my bmax2 Mr or looking for a new one?

[emtee]

Is the bmax fitted with the kit standard pinion & what motor did you have in the car before last night?

As a rule of thumb see the reply above from slowone..

Broadly, and I am sure I might get hammered here, there is a difference in gearing for brushed and brushless motors, however for the same "turn" motor using a smaller than standard pinion the car will accelerate faster but will have less top speed.. fitting a larger than standard pinion the car will accelerate slower but will have a higher top speed...

[whites75]

prior to the Orion going in last night I had a 17.5t speed passion motor fitted

Originally Posted by emtee

Is the bmax fitted with the kit standard pinion & what motor did you have in the car before last night?

As a rule of thumb see the reply above from slowone..

Broadly, and I am sure I might get hammered here, there is a difference in gearing for brushed and brushless motors, however for the same "turn" motor using a smaller than standard pinion the car will accelerate faster but will have less top speed.. fitting a larger than standard pinion the car will accelerate slower but will have a higher top speed...