crawlers engines have somewhere between 35 and 55 turns. That would be a motor with high kv value. So when you see 3.5 turn, this means that 3 1/2e windings per coil are used. Turns is an expression that refers to the amount of windings that are used are per coil. It provides, for those who are less well in to 'Electro sums', a good indication of the power of the engine. The amount of watts that a motor is able to produce is simply the voltage X amps. The higher the number of amperes the stronger the motor is at an equal amount of volts. Keep this in mind when choosing your electronic speed controller. There may be peaks well over the given amperidge. This indicates how many amps a motor pulls / asks from you`re esc on a average level that a manufacturer has measured during testing. The motor, however, will not come to its maximum speed. In itself it does no harm to a 4s (14.8 volts) engine to only supplie it with 11.1 volts.

That kind of engine will never reach its full potential if it gets no more than 11.1 volts. Since youre`drag racing set up may have only 11.1volt it makes no sense to choose an engine that handles up to 22.2 volts (6S lipo). As indicated above, the maximum number of volts `s have an influence on the speed range of the engine. The maximum voltage is sometimes just given in volts and sometimes in a cell number. a 2 volt supply would mean 6000 rpm, 3 volt 9000 rpm 3 etc. So if the spec`s say “3000 Kv” it means that if you put 1 volt threu that motor without any load 3000 rpm`s are made. It represents the amount of rpm per volt the motor runs without load. What matters is what it means when you have to compare the spec `s of an engine. You would never guess and have to search for a long time but Kv stands for 'Konstant velocity'. The properties discussed in this section are the following:(Source of schema ) They are slightly different for each engine. In a car you generally use a inrunner.įor each engine there are properties. What kind of motor you may use you can find in the contest rules. This type of engine comes in all shapes and sizes. This makes them more efficient and they require less maintenance. Brushless motors have like the English word implies no carbon brushes.

If you want to drag race and you're still looking for the most suitable engine you will soon come to a brushless motor.

Motor drag racing png