Brushless Motor Evaluation with the Eagle Tree V4 Data Logger

After cranking up timing on my LRP X22 10.5 stock spec to 50 and running it like this with two fans (just precaution) at my first astro race, i decided to meter its specs. I noticed during training with 48 degree timing that it was already quicker than my new 7t mod motor, what seemed quite impressive to me. For now i will not go beyond 50, because a power draw of 14 amps means a lot of idle power draw. During next training i will measure current on track because i want to find out how idle power draw converts to power draw under realistic load.

Here are the results of my measurement session with all my motors except the LRP X20 17.5. They were conducted with an eagle tree v4 logger, brushless rpm sensor and powerd by an LRP Flow X Competition ESC. I don’t know how accurate the rpm sensor is but the spec rpm of the k7 is 4300kv, so it’s possible, that rpm measurements are 500kv or around 10% too high.