S (stall issue): in this place the turbine pace is zero and also the impeller is rotating; the effectiveness inside the stall position is minimum amount, close to 50%, which means that 50 % of the facility coming with the engine is lost through friction and dissipated as heat; at https://torque-converter-clutch69134.blogaritma.com/32279014/5-tips-about-torque-converter-clutch-you-can-use-today