Big Rock Pinion Change Issue

[BigMacDaddio]

I changed the pinion on my BRCC to a 20t pinion to see how different to normal it would perform. I changed it to the 20t holes but when I put the spur in the mesh seemed very tight. When I ran it, it would run for a bit then when I stopped and tried to go again it seemed like it was bound up and wouldn't move. I checked the motor and it was very hot after only a small amount of time. Would the tight mesh cause this or would the heat be the the nature of running a bigger pinion? Just wondering if I should drill out the holes a little to loosen the mesh or just go back to the 15t.

 

[crimsonfancy]

I changed the pinion on my BRCC to a 20t pinion to see how different to normal it would perform. I changed it to the 20t holes but when I put the spur in the mesh seemed very tight. When I ran it, it would run for a bit then when I stopped and tried to go again it seemed like it was bound up and wouldn't move. I checked the motor and it was very hot after only a small amount of time. Would the tight mesh cause this or would the heat be the the nature of running a bigger pinion? Just wondering if I should drill out the holes a little to loosen the mesh or just go back to the 15t.

Tight mesh could cause this for sure. I went with the Hot Racing mount and really like that I can get the mesh just right. I think it would be helpful to drill or stretch the hole some too.
I'm running 18t and it gets hot even with what I feel is a proper mesh. The brcc gets hot especially if you put some bigger tires on it.

 

[bicketybam]

20t is way overgeared for the stock electronics.

 

[BigMacDaddio]

Thanks for the info guys. I changed back to the stock pinion. What performance change would you expect from a higher toothed pinion?

 

[bicketybam]

Thanks for the info guys. I changed back to the stock pinion. What performance change would you expect from a higher toothed pinion?

Higher top speed, more heat and more cogging from a start.

 

[BigMacDaddio]

Higher top speed, more heat and more cogging from a start.

Good to know, thanks for the info!