Originally Posted by locked

Boost and turbo refers to advanced timing settings in the ESC. Boost is typically a number of degrees added over a specified RPM range. Turbo is a number of degrees that come in at a specified rate, only at full throttle.

Basically the ideal moment for when each motor phase fires, in relation to the rotor position, changes as RPM increases. A sensored setup allows the ESC to know precisely where the rotor is and can spin a motor much faster by dynamically changing the timing of when the phases fire. To change these settings on most ESCs, you need their programmer box(card) or in the case of Tekin you would need their "Hotwire" link and an android device with their app or a laptop.

When playing with these settings it's best to start small and gradually increase until you get the desired performance without the motor or ESC getting too hot. Check temps every couple of minutes on track after changing any of these settings. It's easy to go too far, where you don't gain performance, just heat.

You're diving straight into the deep end of electric racing, which is usually discouraged. Hence some of the comments here. Good luck.