S (stall level): During this stage the turbine speed is zero along with the impeller is rotating; the efficiency while in the stall position is bare minimum, around 50%, which suggests that half of the ability coming within the engine is shed via friction and dissipated as heat; at this https://torque-converter-clutch11863.59bloggers.com/34697724/the-basic-principles-of-torque-converter-clutch