With regards to the quantity of passages (ports) for controlling the oil flow from the torque converter clutch, there are many different types of torque converters: A torque converter cannot reach 100 percent coupling effectiveness. The typical 3 aspect torque converter has an performance curve that resembles ∩: zero effectiveness https://torque-converter-clutch82530.actoblog.com/34660605/little-known-facts-about-torque-converter-clutch