What is the max rpm on the 1600 and 2000?

asked by Jason on September 9, 2019

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Max RPM will depend on your application. A motor will spin at the KV multiplied by the voltage you run, for example a 2000KV motor would spin at 29,600RPM when run on 4s (2000 x 14.8V). Naturally, the higher the KV the more top speed you will get but you'll also lose some torque, and most importantly you are going to build heat. As with anything mechanical, there regular laws of physics apply and you are always going to have a by-product to building power which in our case is heat. Heat is your #1 enemy in electronics and will burn up components fast so it's critical to monitor temps and adjust gearing accordingly. A higher KV motor is less efficient and will therefore run down a battery quicker in addition to building that heat, and you will often have to gear down (smaller pinion or larger spur) to keep temps in check which is going to knock off some of that speed. A lower KV motor is more efficient, runs cooler, makes more torque and allows you to pull a bit of a taller gear (larger pinion or smaller spur) to make up for that lost RPM. As a general rule, it's better to go with a higher voltage and lower-KV setup but it's still critical to always monitor those temps on a new setup, and monitor them often until you are confident of your operating temps.

RCJuice answered on September 11, 2019
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