How to choose a stall converter

Gear ratio, cubic inches, weight, and torque have a factor in this. It is a pretty complicated process, so I will keep it simple. This is true for a RPM converter. Most mild race cars will use between to stall speeds on average. Plus, the higher the stall speed, the more heat the converter will make with hydraulic fluid inside of the converter. Normally a high stall converter will be able to make enough heat to destroy a transmission if you are holding the line too long at full RPM if the stall speed is higher than RPM.

Getting a tranny cooler is important for any high stall converter. Many street performance cars will be running normal performance cam which should have a stall converter of to RPM. For the hotter cars that have bigger cams, then a RPM converter is better. Also, consider the resistance you will have against the engine.

A heavy car with large diameter tires will create more to fight against. Generally speaking, the more resistance you have, the higher the stall rpm. The same principles apply to gear ratios.

A heavy car with taller gears low numerical value will have a higher stall rpm compared to a light car with shorter gears and smaller tires.

The details will make all the difference, so to wrap up, the specifics you'll want to consider are: your vehicle weight, engine displacement, compression ratio, cam profile, rearend gear ratio; tire diameter, the type of fuel system, and the transmission model and year. Say it weighs in at around lbs with a cubic-inch engine at compression, running a relatively mild street cam like a Comp H and 3. Or a Chevy 2 door hardtop which weighs about 3, lbs. It would likely use a stall converter, like PN, to get the best performance.

All of the performance torque converters offered by Speedway Motors are engineered to provide improved strength and durability. Designed with heavy-duty heat-treated internals and high-strength bearings, you can expect longer life along with a substantial increase in performance over a factory torque converter. See what Torque Converters are available from Speedway Motors.

Products to Compare max of 3 X. Videos All Videos. How Do Torque Converters Work? Question 6. Choose a larger torque converter for heavier vehicles. If your car is on the heavier side, it will put more strain on your torque converter. Similarly, lighter cars are easier for your torque converter to handle.

According to the U. Heavier cars tend to have rear gears with a low gear value, like 2. Since you need extra force to move a heavy car, the torque converter will end up stalling at a higher RPM.

Inspect your tires. Typically, cars with wider tires are a lot sturdier and reliable. Wide tires help you maximize your RPM, as opposed to a car with both large and small tires. Question 7. Additionally, Schaeffler specializes in torque converters for hybrid vehicles. Include your email address to get a message when this question is answered. Shuddering, overheating, and vibrating are all signs of a damaged torque converter. Take your car to a repair professional right away if you notice any of these symptoms.

Helpful 0 Not Helpful 0. You Might Also Like How to. How to. More References 3. About This Article. Co-authored by:. Co-authors: 7. Updated: August 25, Categories: Transmission Parts.