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Torque Converter

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The torque converter is to an automatic transmission what the clutch is to a manual transmission. It is the torque converter's task to multiply the engine power and send it to the ground. A converter has three main components.the stator, the turbine, and the impeller. These three parts are interconnected, working hand in hand to make it possible for the engine to run even when the vehicle is at a complete stop. As the vehicle runs, it is also the converter that translates the engine rotation to improve the vehicle's forward and backward movement.

If one of the components of your torque converter malfunctions, the entire assembly could be jeopardized. So, it is wise that you replace it as soon as possible. To find the converter that's perfect for your car, here are the factors you should consider before making a purchase:

Stall speed

It is important that you select the right torque converter and stall speed for your vehicle make and model.whether for street or race applications.as it draws the line between driving a car that performs to its full potential and one that delivers lackluster performance.

But what is stall speed? This is the rpm the engine is capable of achieving when the brakes are locked and the transmission is in gear prior to the rotation of the drive wheels. When purchasing online, this should be your first consideration as the assigned stall speed determines the converter's performance. A converter with higher rpm rating means your ride's engine will deliver more rpm, which is necessary in launching your ride from a dead stop and in achieving remarkable improvement in the way it accelerates.

Power curve and torque output

These two are also main considerations when choosing a torque converter. If you're aiming for a converter that covers various power curves, go for one with a stall speed rating of 2,200 to 2,700-rpm as the said range covers different engine characteristics, and thus, power curves. Remember that the stall should lock up near the engine's peak torque. Most of the time, powertrains that generate more low-end torque will boost up the stall speed.

Resistance against the engine

Your vehicle's resistance against the engine should not be taken for granted as well. Generally, the more resistance the vehicle generates, the more the engine has to fight against it, and the higher the stall rpm is. If you are driving a heavy car fitted with large-diameter tires, expect that your engine has more resistance to combat with compared to light vehicles with smaller wheel-and-tire assembly.

Other specifics

Sometimes, small details make a noticeable difference. Among the details you should also factor in are the vehicle's weight; its engine's displacement, compression ratio, and cam profile; the rear-end gear ratio; the type of fuel system the vehicle is equipped with; the diameter of the tires; and the model and year of the transmission fitted into the vehicle.

If you have reservations about the torque converter you are eyeing, you'd better consult your manual for recommendations or might as well contact your vehicle's manufacturer and the converter manufacturer to get the best advice. They'll know exactly which part you will need if you provide them with the specifications of your vehicle.

Torque Converter Articles

  • Important Factors to Consider When Choosing the Right Torque Converter for Your Ride

    The torque converter is to an automatic transmission what the clutch is to a manual transmission. It is the torque converter\'s task to multiply the engine power and send it to the ground. A converter has three main components-the stator, the turbine, and the impeller. These three parts are interconnected, working hand in hand to make it possible for the engine to run even when the vehicle is at a complete stop. As the vehicle runs, it is also the converter that translates the engine rotation to improve the vehicle\'s forward and backward movement.

    If one of the components of your torque converter malfunctions, the entire assembly could be jeopardized. So, it is wise that you replace it as soon as possible. To find the converter that\'s perfect for your car, here are the factors you should consider before making a purchase:

    Stall speed

    It is important that you select the right torque converter and stall speed for your vehicle make and model-whether for street or race applications-as it draws the line between driving a car that performs to its full potential and one that delivers lackluster performance.

    But what is stall speed? This is the rpm the engine is capable of achieving when the brakes are locked and the transmission is in gear prior to the rotation of the drive wheels. When purchasing online, this should be your first consideration as the assigned stall speed determines the converter\'s performance. A converter with higher rpm rating means your ride\'s engine will deliver more rpm, which is necessary in launching your ride from a dead stop and in achieving remarkable improvement in the way it accelerates.

    Power curve and torque output

    These two are also main considerations when choosing a torque converter. If you\'re aiming for a converter that covers various power curves, go for one with a stall speed rating of 2,200 to 2,700-rpm as the said range covers different engine characteristics, and thus, power curves. Remember that the stall should lock up near the engine\'s peak torque. Most of the time, powertrains that generate more low-end torque will boost up the stall speed.

    Resistance against the engine

    Your vehicle\'s resistance against the engine should not be taken for granted as well. Generally, the more resistance the vehicle generates, the more the engine has to fight against it, and the higher the stall rpm is. If you are driving a heavy car fitted with large-diameter tires, expect that your engine has more resistance to combat with compared to light vehicles with smaller wheel-and-tire assembly.

    Other specifics

    Sometimes, small details make a noticeable difference. Among the details you should also factor in are the vehicle\'s weight; its engine\'s displacement, compression ratio, and cam profile; the rear-end gear ratio; the type of fuel system the vehicle is equipped with; the diameter of the tires; and the model and year of the transmission fitted into the vehicle.

    If you have reservations about the torque converter you are eyeing, you\'d better consult your manual for recommendations or might as well contact your vehicle\'s manufacturer and the converter manufacturer to get the best advice. They\'ll know exactly which part you will need if you provide them with the specifications of your vehicle.