Today’s brushless racing introduced new variables, such as mechanical timing, speedo timing, RPM ranges, rotor diameters on top of the rollout variable. The new McPappy Racing DIY Brushless Dyno helps you to make sense of some of that. This dyno platform will allow you to test your motors against a brushless slave motor that provides consistent resistance from test to test. It was designed to accommodate multiple test configurations: direct coupler in between both motors, direct coupler with flywheel in between both motors, offset the motors using 2 pinions, offset the motors using 2 pinions flywheel. The flywheel provides inertia resistance and the brushless slave provides constant resistance. Together they reproduce similar track resistance. The key component to this dyno platform is a huge piece of 1/4″ 6061 aluminum which acts as a giant heat sink. Two large fans and all of that aluminum mass will bring the temperature of the motors and resistors back down to room temperature very quickly. This allows you to run many tests very quickly. To find your most powerful motor and speedo combination is actually quite simple. Your overall goal is to spin the flywheel and slave motor as fast as you can with the least amount of amp draw. The McPappy Racing DIY Brushless Dyno can help you do just that. You will be able to find your strongest motors and most efficient combination of mechanical timing, speedo timing, RPM ranges, and rotor diameters.