Traxxas Slash motor choice question

[brushlessboy16]

pick up a 1509 :D

Originally Posted by brushlessboy16

pick up a 1509 :D

This was my next question, which Neu motor to get, 1509 or 1512, so you reply before i post

I realy considere a Neu 1509 in the 2700 Kv.

But tell me please, which is better on 3s: a lower Kv motor with a bigger pinion or an higher Kv motor with a smaller pinion

Or both is as good?

[lincpimp]

Originally Posted by david lamontagn

This was my next question, which Neu motor to get, 1509 or 1512, so you reply before i post

I realy considere a Neu 1509 in the 2700 Kv.

But tell me please, which is better on 3s: a lower Kv motor with a bigger pinion or an higher Kv motor with a smaller pinion

Or both is as good?

Personally a 3000-3500 kv motor on 3s is my choice. That puts you between 33k and 40k rpm max. That would be for a smaller motor like a 50mm medusa, neu 1506, or a feigao s can, or the vxl motor. The smaller pinion will decrease the load and the higher rpm will make up for it. Plus it will start from standstill easier, due to the lower gearing.

A larger motor, like a feigao l can will have more torque, and will pull higher gearing. Seems like a 9l on 3s is a great setup for a pede/rustler. Plenty of power, and not really sensitive to gearing. Plus they run cooler. And it is cheap...

If you go with a high quality motor like a neu, or even the medusa, a smaller motor will be fine. I just generally try to keep the rpm somewhere around 35k...

[BrianG]

Originally Posted by david lamontagn

This was my next question, which Neu motor to get, 1509 or 1512, so you reply before i post

I realy considere a Neu 1509 in the 2700 Kv.

But tell me please, which is better on 3s: a lower Kv motor with a bigger pinion or an higher Kv motor with a smaller pinion

Or both is as good?

Depends. Either way, you want some options for gearing. If you start off at the max or min gearing possibility, you don't have any room to go further.

Generally, on the good motors, I kinda like getting a faster spinning setup and gearing down. Since each motor revolution is moving the vehicle less (and doing less work), the ESC seems to have an easier time locating rotor position at slow speeds.