S (stall point): Within this stage the turbine speed is zero plus the impeller is rotating; the performance in the stall stage is least, close to fifty%, which suggests that 50 % of the power coming with the engine is missing by friction and dissipated as heat; at this time https://torqueconverterclutch96306.techionblog.com/34279545/not-known-factual-statements-about-torque-converter-clutch