S (stall point): Within this place the turbine velocity is zero and also the impeller is rotating; the effectiveness while in the stall position is least, about 50%, which suggests that fifty percent of the ability coming in the engine is misplaced by means of friction and dissipated as heat; https://torqueconverterclutch63840.blogthisbiz.com/41098627/little-known-facts-about-torque-converter-clutch