Which stall converter

The reason a stall converter works is simple; an engine at 1, RPM is only making about 80 or so horsepower on average , but at 2, RPM it could be making to HP, and obviously trying to get a car moving using HP is going to be much easier than one trying to launch at 80 HP or so.

Most performance engines don't make power until 3, or so RPM, hence why when you have a higher horsepower engine with a big cam, you need a higher stall speed so the engine is closer to it's "power band" when taking-off from the line, otherwise it will fall on its face and be a turd off the line. Some people believe that "stall" means the car won't start moving until the engine reaches that particular RPM, and that isn't even close to being true.

Most street performance cars running your typical "performance" cam should be running a stall converter in the 2, - 3, RPM area.

For mild performance cars with something like a HP engine, a 2, - 2, stall is about right. The basic rule of thumb is; if your engine "comes alive" at say, 3, RPM, then you want a stall converter with about 3, of stall to it. Most people tend to over cam their cars Heat is the enemy of a transmission.

You want to keep the fluid temperature as low as possible. With a lower stall speed, less time elapses before the motion energy of the impeller is converted to motion energy to drive the turbine, so the transmission runs cooler and lives longer. Stall speed is determined by several factors, including the distance between the impeller and the turbine and the design of the stator.

Enter the Banks Billet Torque Converter. Our new torque converter is designed to stall at a speed to match Banks Power systems — precisely the point where the applicable truck or SUV diesel engine puts out maximum pulling power. Fuel economy goes up, transmission temperature goes down, and your transmission will live longer. Flash stall is the amount of engine RPM or flash that is observed upon initial acceleration under load.

The easiest method for checking flash stall is to drive the vehicle at low speed in second or third range and immediately transition to wide open throttle. The RPM level that the engine immediately accelerates to is the flash stall. Flash stall speed is one of the most useful ways to truly gauge the stall speed characteristics of a torque converter and how those characteristics will influence the acceleration potential of a vehicle. Special consideration must also be given when using these converters in applications that utilize a power adder.

A custom built Hughes Performance Pro Series torque converter is required for use with any transbrake application as well as any application using multiple power adders. A Pro Series torque converter is also generally a good choice for any application exceeding flywheel horsepower. What is Torque Converter Stall. Torque converter stall speed is the maximum amount of engine RPM that can be achieved in an automatic transmission-equipped vehicle while the transmission is in a forward operating range without generating any driveshaft motion.