S (stall issue): in this point the turbine velocity is zero along with the impeller is rotating; the effectiveness from the stall place is minimum, all over fifty%, which implies that half of the power coming through the motor is lost via friction and dissipated as warmth; at this stage https://torque-converter-clutch85295.isblog.net/helping-the-others-realize-the-advantages-of-torque-converter-clutch-51401516