help me please

[oddy4691]

hi all can anybody please help me I cannot get my head around kv rating on brushless motors ,so can some one please advise me to which would be a good one for a scx10 honcho. many thanks oddy

[johnnyh66]

Generally, you want the lower kv ratings, 3300kv and below.

In my SCX10 I'm running a Sensored Tekin Pro4 3300kv with Mamba Max ESC on 3s lipo.
It's an incredible motor!

Now, keep in mind, if you get a non-sensored motor, you will have cogging at low throttle inputs and it will be difficult to crawl.

[Deerhurst]

KV is nothing more then a ratio of RPM with motor will spin per volt applied.

Lower RPM motors are often produce more torque.

[Olle P]

And the SCX10 runs best with a brushed 35T motor. Jhonnyh66 is obviously keen on going fast with his truck.
No need to go BL with it.

[oddy4691]

Many thanks guy's, am learning a lot about brushless esc & motors but still no wiser.thanks oddy

[Johnnysplits]

Originally Posted by oddy4691

hi all can anybody please help me I cannot get my head around kv rating on brushless motors ,so can some one please advise me to which would be a good one for a scx10 honcho. many thanks oddy

Kv is rpm per volt. Ex: 3500Kv x 8.4v = 29,400 rpm. High Kv = high rpm/less torque, Low Kv = high torque/low rpm. Then there's different types of winds, poles,rotors, sensored and sensorless. 3-3500Kv is fine for your honcho.

[oddy4691]

many thanks johnnysplits that's what I wanted to know. oddy

[DRTMI]

Originally Posted by Olle P

And the SCX10 runs best with a brushed 35T motor. Jhonnyh66 is obviously keen on going fast with his truck.
No need to go BL with it.

The reason I run brush less is for the efficiency of the motor to get great run times on the trail. I mean like 90 minutes from a 2200 Mah 3s pack.

[axial 4x4 crawler]

Hello KV rating is Kilo volt this is mostly only brushless motors. I run a Tekin RS esc with a 10.5 turn motor(gen 2), know this motor has 4550 KV, I run a 3s battery know take your voltage of your battery and times it with your KV of your desired motor, 4550 (KV) x 11.1 (3s lipo) = 50,505 RPM's, so when you do that it finds out how many rpms you are really putting out depending on what type of battery you are running. Remember that when you go higher in KV it would most likely mean it will have less torque, you don't want to go with a 11,000 KV motor or a 7,700 motor from Castle Creations, the reason behind that is that they are more of a top end motor depending on what RC you run it in you could overheat it or tear up your RC, remember that you want a decent amount of torque and power. And I use to run a 13.5 turn motor from team Tekin and it had 3500 KV x 7.4 (2s lipo)= 25,900 rpms see how much more power I added just by going down three turns and a 3s lipo(note that I used an older gen1 motor from tekin and a 2s lipo) But which ever brand you would like Tekin, castle creations or any-other system you prefer go with that system just keep in mind about your KV ratings and voltage protectors. Hope this helps, - axial 4x4 crawler