S (stall stage): In this particular place the turbine velocity is zero as well as the impeller is rotating; the effectiveness during the stall point is minimum, close to 50%, meaning that 50 % of the power coming from your engine is dropped by way of friction and dissipated as https://kylerhoonl.elbloglibre.com/34227658/not-known-factual-statements-about-torque-converter-clutch