If converter stall speed is too low, the car will be lazy leaving the line; if too high, there'll be excessive high-gear slippage—either case adds time to your e.t. 0:00 / 0:00 Engine builders ...

There's more. Many factors outside of the converter have a direct impact upon the stall speed. ATI notes that the engine type, engine power characteristics (and more importantly, the engine torque ...

Stock torque converters generally have a stall speed around 1,800-2,000 rpm. Higher stall speeds become necessary when horsepower and torque happen at higher rpm ranges.

If converter stall speed is too low, the car will be lazy leaving the line; if too high, there'll be excessive high-gear slippage—either case adds time to your e.t. 0:00 / 0:00 Engine builders ...