[bigjoedo]

This may be a dumb question.
When you use a 2300 - 2500 stall converter just doing regular stop and go driving does the engine need to reach that stall speed before the car will move ?

I understand how the converter works when you really want to launce the car closer to peak torque, but, am confused about the above.

Thanks

Joe

[wrenchturner]

It will move but it will jump up to your stall when you put a strain on it ( mashing you gas down)hope this helps not much (wrenchturner)

[Shawn Asseln]

Actual stall speed is determined by engine touque output and not engine speed. It is a very shady area to determine actual converter lockup when not under full load.

[Studebaker]

This will not cause you to launch at 2500 rpm every time. If you accelerate slowly it will act similiar to the sensation of a manual gear car with a slipping clutch. This is favorable in a very light car with a radical engine, because it doesn't let the car "creep" forward when stopped at street lights. However, there is a drawback. At cruise speed, depending on your gear ratio, it may cause the convertor to slip causing bad fuel mileage and excess transmission heat. A good trans cooler is recommended.