S (stall issue): In this particular point the turbine speed is zero and the impeller is rotating; the effectiveness while in the stall position is least, around fifty%, which implies that fifty percent of the ability coming from your engine is dropped by means of friction and dissipated as heat; https://torqueconverterclutch53950.fitnell.com/75039257/the-basic-principles-of-torque-converter-clutch