![]() As this happens, the applied pressure virtually locks the impeller and turbine together. Lock up converters work primarily the same way as your standard torque converters, except that as the turbine spins, it applies pressure to the clutches. These torque converters have one to five clutches built into them. Now, many aftermarket companies have three to five clutches in the lock up converters they sell. The Original Equipment Manufacturers (OEMs) started creating lock up torque converters to maximize power and efficiency, thus giving modern vehicles better gas mileage as well.įor years the OEMs have had twin disk clutches in their torque converters. Standard none lock up converters generally lose about 15% of the power from the engine to the rear wheels. These clutches have friction materials built into them to apply pressure to lock up the converter and eliminate slippage. Lock up torque converters have clutches within the converter itself. ![]() Since it is a fluid transfer, there is about a 15% loss from the engine to the rear tires in this type of torque converter. When the motor is running but the vehicle is stopped, the one-way clutch stops the stator, which prevents the impeller from sending fluid through to the turbine. The fluid movement transfers power from the engine to the transmission. As the throttle is applied and the engine's RPMs go up, it spins the torque converter, which moves fluid through the stator to the turbine. The stator and the turbine perform together for the car to either move or not.
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