How to Select a RC Car ESC with No Amp Rating on the ESC

Not all Car ESC's will tell you the amount of "continuous" current it is rated for right on the case. Nor may this information be pushed in the main literature of the product. Why would this be?

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How to Avoid the Biggest RC Motor Mistake.

The Car a Castle 1521 will be used in:

Actual vs Calculated Motor Torque:

#RCexplained

[gordonscottrc]

Selecting an esc based on scale it helps if its meant for track racing with limitations or rules when it comes to the motor.. Motor KV plays a part too.. especially for drag and speed runs, so selecting an esc based on what is mentioned on this video or scenario may differ..my 2 cents

[kyangsable]

Your content is awesome. I hope your channel grows bigger.

[rcmod]

Thank you for your information.
I agree that electronic equipment selection according to scale is not good.
Many people are confused about what equipment to put in their vehicles.

so
weight of a vehicle
desired velocity
gear ratio

with three pieces of information

motor KV
motor watt
anticipated heat generation

I would appreciate it if you could make a simulator that can calculate.

In RC airplanes, these calculators have existed since 10 years ago, but there seems to be no RC car.
It would be nice if you could make it.

[AutoBodyEverything]

Yes but how do we determine the max amp draw limit for a given esc? How do you choose between two 1:8 esc? Which one is more reliable? What are their designs intended for? Many r/c enthusiast have the knowledge to make their own calculations to reach their goals but they cannot do that with missing information. This is as assuming manufacturers are producing esc and not know their specifications and ratings? Scale sizes is virtually irrelevant as ppl are adding other/larger components to a 1:16 to reach 100mph and other 1:8 scales ppl are removing weight to make them lighter In addition to swapping to a more powerful electric motor makes the ENTIRE scale reference inapplicable. We need the specifications.

[MX-CO]

Im looking for a speed controller to race in a 2wd buggy, what are your recommended models, ? Thanks

[chelomm_]

Hi, I am planning on getting a 1/10 short course rc car weights about 6 KG I have seen videos and it's not very fast so also getting a bigger motor. The RC use 3S batteries and come with a 120A ESC and Surpass Hobby 3660 2600KV says on the specifications chart that has a max amps of 63A and Io of 1.5 A and running around 33K rpm on 12.6V, I was planning on get the Surpass Hobby 3660 4200 KV the chart says max amps of 100A and Io of 3.7A this on 3S 12.6V get over its 50K RPM limit by 3K rmp so I don't if that little exceed rpm will be tolerated or the Surpass Hobby 3660 3500 KV the chart says max amps of 92A and Io of 2.8A has a 44 K rpm on 12.6 V both motors has a max rpm of 50K, do you think the 120A ESC will do the work or increasing the KV of the motors would reduce the initial torque and current against the original 2600KV so there won't be any problem with the upgrade, that 4200 Kv is the more powerful in the 3660 size but there is also the 3500 and 3100KV so this is also and option, also mention that I can't change the ESC or the gearing so my only option on increasing speed is by the motor KV or maybe get a 3674 motor 3000Kv. Thank you for your time and great content.

[keyboard-]

How to select esc with how much kv's motor is best
For example how much amp esc is need for 5900kv motor

[GaetanoCrisci]

Man so you mean that if the scale of my RC is 1/10, and my motor is enough with 45A, doesn't change anything if I mount a 50A or 110A ESC ?
should I get more benefit anyway with the 110A?
thank you 🙏🏻

[never-stock-rc]

Shoot I had my 1/5 kraton exb out today at the park pulling wheelies at 76mph lol per GNSS I can only imagine how many amps I was pulling haha I have to check out my data logs on my xlx2 I have the 1100kv 2028 on 39/34 gearing and temps are 125 ESC and 119 on motor.