A power control method/process of an internal combustion engine employing a selective ignition delay, in which the process chooses, in real time, just before the ignition, whether the next cylinder should have its power reduced or not, in such a way that this choice at high speed, individualized by cylinder, guarantees a higher resolution in the power control, where the process has the following steps: vaporized air and fuel enters the combustion chamber of the cylinder; a piston compresses the air and fuel increasing their pressure; the ignition spark does not occur, keeping the gases in the combustion chamber unchanged; the inertia of the engine causes the piston to move, where the ignition spark occurs shortly thereafter, with reduced work generation; air and fuel still expanding are expelled through the exhaust valve.