Some of the differences with the stresses and strains of drifting versus other forms of motorsports for example drag racing,  people go oh my god they make a lot of power and they do but you got to understand they are running for 6 7 8 10 seconds , a typical formula drift run lasts anywhere from 25 to possibly 45 seconds , that amount of strain of not only the rpm that the motor is consistently subjected to but the on and off throttle as well as some people do clutch kicking , which is you know shocking the drive-train , shocking the crankshaft , shocking everything  down the drive-train .. it's very very hard on everything including the engine