Smaller motors (like 370 or 380) are used in some smaller cars, while large scale cars use even larger motors. Brushless motors in this size are today often “4-pole” motors. These are used in many lighter 1/10 cars, while larger “550” or “1/8” sized motors are often used in heavier 1/10 vehicles and 1/8 scale cars. What’s perhaps still the most common motor size used in RC cars, is often called “540”. The car specs usually specify what size of motor the car is designed for, so do check this before making a choice if you are unsure. With motors, the first thing to check is the actual size and measurements, as there are various motor sizes available for different types of cars. Additionally, some ESC’s are waterproof or protected, while most are not, so you also need to consider if this is a feature you need.Ī more expensive ESC will usually give you better control, more features and adjustability, as well as better overall quality and lifetime. Other ESC related factors to take into consideration include the size of the ESC, making sure it fits properly into your car. If a kv rating is used, then you need to choose a motor with a lower kv value than the limit. If the ESC specifications says that the motor limit is 8.5T on a 2S battery, then you must use a motor with 8.5 turns or more. ESC’s typically have some sort of motor limit (in kv or turns), which you need to adhere to. ![]() ![]() For most uses today you’ll be looking at a brushless ESC, however, you then need to pay attention to if it is for sensored or sensorless motors, or if it can handle both types.įinally you also need to check that it can handle the type of battery voltage and motor specs you have in mind. Basic things to consider is first if the ESC needs to be for brushed or brushless motors. ![]() Starting with the speed control, the choice is very much dependent on what motor you plan to run, as the ESC and motor need to be compatible between each other. If you’re thinking about buying a new ESC and/or motor, the thing first on your mind is often speed, but there are numerous things to take into account, so here we’ll go through the basic things you need to know. Because of the many different types and sizes of RC cars, and the big range of different products available, choosing a suitable electronic speed control (ESC) and motor for your car can be a challenge.
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