Gearing a T3 with a modified motor?

[Jman_15]

I have searched online, but I am still extremely confused when it comes to gearing my T3. I have a Speedgems extreme 15 turn motor and I am trying to determine a decent gearing setup for bashing around my driveway and going off road a little bit. I would rather have it slower than push the motor too far. Any help would be greatly appreciatied.

[dalejrfan8]

I have a 16t speed gems chrominum in my t3. My gearing is 19/87. So I would say try a 18 tooth pinion first.

[Jman_15]

That is actually what I am at, odly enough. I am at a pinion of 18 and a spur of 87. Throughout the run, I checked the motor to make sure that it did not get to warm. It seemed to work extremely well. It stayed nice and lukewarm and the battery lasted a long time. I think that I am good... :D

[evaderstracr]

i ues a 19t pinion with a 86t spur with a 15t reedy motor, works very well good balance of acceleration and top speed.

[FreeRideJunkie]

i ues a 19t pinion with a 86t spur with a 15t reedy motor, works very well good balance of acceleration and top speed.


I have a speed gems 13 turn and am geared at 21/84 i believe.

[dalejrfan8]

Are you serious? That is higher than what i am using. Isnt your motor really hot after each run?

[FreeRideJunkie]

It's actually running perfect. I don't get it. Batteries nor motor are getting hot.

[dalejrfan8]

Wow thats wierd.

[Cain]

these motors you can adjust the timing correct? May be how you have the motor timed as well.

Also, if you are finding the motor coming off cool after a bash session ( which runs longer than racing ), you probably could go up a tooth or two. Try going up one tooth, run it for 5 minutes and see how the motor feels.

[ITurnLeft]

Go here and get educated on how to gear properly..

http://www.rcuniverse.com/forum/m_2587132/anchors_2587132/mpage_1/key_/anchor/tm.htm#2587132