Choosing the Right Torque Converter

Whether you have a car for sporting events or just a car for your normal daily routine, it is important to think about what type of torque converter you want. The type of converter will determine the performance of your vehicle. This post will provide you with a comprehensive guideline on how you can choose the best Allison torque converter.

Understanding How Torque Converters Work 

The torque converter is used in automatic transmission. It consists of an impeller and turbines which work to multiply the power of the engine to the wheels and ultimately to the ground. The inside of a torque converter contains three key elements. These include the turbine, impeller and stator. The impeller spins and throws the fluid outwards. This creates a vacuum, which draws fluid at the center. The fluid is then directed towards the turbine which is connected to the transmission shaft. 

The stator is located between the turbines and the impeller. It helps redirect the flow of the fluid and improve the power of the converter. The turbines begin to rotate once the fluid flow is powerful enough, causing the car to move. The overall output of a converter depends on its diameter, the number of fins and the design of the stator.

Choosing the Right Torque Converter

One of the most important things you need to consider is the stall speed of your converter. This is the number of revolutions per minute (RPMs) the engine can attain to turn the wheels with the transmission in gear and brakes locked. Each converter has a stall speed assigned to it, which basically shows its performance. 

In order to get the right stall speed, you have to be aware of your vehicle’s power curve and torque output. Let’s take an example. You have a converter with a stall speed rated 2,200 to 2,700 rpm. This range is provided to take care of different engine characteristics with varying power curves. As expected, you require an engine that can operate at the upper limits.

Apart from the power curve and the torque output, you must be aware of the resistance that will be there against the engine. A big car with large tires, for instance, will create more resistance. The more the resistance, the higher the stall rpm. The same principles apply to the type of gears. If your car is heavy and contains taller gears, you will need a higher stall rpm. So, before you go shopping, you need to consider the weight of your vehicle, gear ratio, the size of the tires and the fuel system. 

Torque converters that have high performance are designed to provide adequate strength and durability. They are made using heavy-duty material and high strength bearings to improve their performance. If you want the right converter, then you have no any other choice but to do a lot of research so that you select the right converter for your car. If possible, get a car mechanic to help you shop around.


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