S (stall place): With this level the turbine speed is zero as well as impeller is rotating; the efficiency within the stall level is minimum, around 50%, which suggests that 50 % of the ability coming from the engine is shed through friction and dissipated as warmth; at this time https://torqueconverterclutch29740.activoblog.com/36908609/torque-converter-clutch-an-overview