S (stall stage): On this point the turbine velocity is zero as well as the impeller is rotating; the performance in the stall position is bare minimum, all around 50%, meaning that 50 % of the power coming within the engine is shed through friction and dissipated as heat; at https://torqueconverterclutch42963.blogars.com/33128699/the-greatest-guide-to-torque-converter-clutch