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What is a transmission stall converter?

April 26, 2017Auto Autos maintenance motorcycles stall transmission Transportation truck tuning

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What is a transmission stall converter?

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Most automatic-transmission vehicles have a stall (torque) converter of some sort. These fluid couplers allow an engine to idle without engaging the transmission, and are proven performers.PurposeA torque converter (TC) is used to keep an engine from engaging the transmission before it reaches a high enough RPM that it will move the car.PartsA TC contains an engine side fan (turbine) that pushes fluid through a transmission-side turbine.Stall SpeedThe TC is tuned so that at a certain RPM, the engine-side turbine overwhelms the transmission-side turbine’s ability to pass fluid through without moving.