S (stall stage): in this position the turbine velocity is zero as well as impeller is rotating; the efficiency within the stall stage is minimal, close to fifty%, which means that fifty percent of the ability coming in the engine is misplaced by way of friction and dissipated as warmth; https://edwinnsssr.kylieblog.com/34805103/5-simple-statements-about-torque-converter-clutch-explained