Hi all,

I need to buy rc540 bl motor, all I wanted to know is that all rc540 motor have 3.175 mm shaft or vary.
I have 3300kv motor applied with hobbywing x car 120amp esc on 2s I did not find any difference between my previous 45 amp esc on same motor and battery. Am I doing anything wrong ?

need your advice's dear all !

If you want speed you need to go for a 3s lipo set up provided your motor and esc supports 3s lipo. The only thing you did by adding a 120amp esc is just reducing the load on esc to run the motor thats it ....you wont get any speed out of this current set up but yes ur esc will run cooler.

The universal size of 540 motor shaft is 3.2mm thick.

Hi rdx,

I got it on esc load. So to get more speed should i change my motor ? If yes what kv motor to buy ?

Am sorry my questions might b silly as am not much into this kind ! Thank u

If ur motor supports 3s lipo get a new 3cell lipo battery. If it dosent go for an upgraded motor in the 4000kv plus range.