What bl motor to use with 3s lipos

[BrianG]

If running it on 7 cells, then go with the 5700. If 3s or 10 cells, go with the 4600.

To calculate motor speed, simply multiply the voltage by the motor KV. So, 4600kv * 8.4v = 38,640rpm. The idea is to use the lowest kv motor you can for the voltage you are using. Higher kv motors means more current, which means more losses, which means more heat. Basically, it's better to develop high power with high voltage and lower current than the other way around.

[Heyitsme]

Originally Posted by BrianG

If running it on 7 cells, then go with the 5700. If 3s or 10 cells, go with the 4600.

To calculate motor speed, simply multiply the voltage by the motor KV. So, 4600kv * 8.4v = 38,640rpm. The idea is to use the lowest kv motor you can for the voltage you are using. Higher kv motors means more current, which means more losses, which means more heat. Basically, it's better to develop high power with high voltage and lower current than the other way around.

No Im planing on buying one 7 cell nimh, or 2s lipo for control and offroad, (AND one 3s lipo for sure, for high speed), I spent the extra money on the ice charger to charge lipos so im going with 3s no matter what. I just cant decide to what motor to run it on with out having heating issues. Crazy how fast is your 4600 on your 2s lipo setup?

[crazyjr]

Originally Posted by BrianG

If running it on 7 cells, then go with the 5700. If 3s or 10 cells, go with the 4600.

To calculate motor speed, simply multiply the voltage by the motor KV. So, 4600kv * 8.4v = 38,640rpm. The idea is to use the lowest kv motor you can for the voltage you are using. Higher kv motors means more current, which means more losses, which means more heat. Basically, it's better to develop high power with high voltage and lower current than the other way around.

I agree with you on bashing, the 5700 is best on 2s and 6-8 cells. I choose the 4600 because mine will be raced and the 4600 feels better on the track on 2s. The 8000 pack is awsome in my T4 and fits almost perfect (had to move the strap screws up a little) and the pack is lower in weight (by 50 grams) than any 6 cell pack