A torque converter can't achieve 100 percent coupling performance. The vintage a few aspect torque converter has an performance curve that resembles ∩: zero effectiveness at stall, usually expanding effectiveness during the acceleration stage and small effectiveness inside the coupling stage. The torque converter capabilities like a hydraulic coupling system. https://messiahiqrsq.theblogfairy.com/32913715/5-tips-about-torque-converter-clutch-you-can-use-today