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Originally Posted by deuce_454
....would there be a wisdome in getting a 2800 stall for the occational (often) stoplight dash.. and then programming the transmission to stay in lockup whenever its in "manual" mode and the paddles are being used to shift??
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Not exactly. You only want the lock up to engage above stall speed, so you must work the math backwards to determine how stall speed rpm relates to vehicle speed. For example, my 2500 stall 9.5" converter is set to lock up at 45 miles per hour. Lock it up at 30mph (under 2200 rpm) for example, and the drivetrain overloads the engine (which in my case is carbureted). 2600 or 2800 won't matter much for stoplight dashes. It is more important that--when you are hauling ass on a road course or auto-cross, that stall rpm be exceeded and lock up be available. In this environment, you are employing lower gear selection and therefore higher rpm. You might be in second or third gear. You might be pulling 3200 rpm or more at 60 mph whereas, on the highway, you would only be pulling 2200-2400rpm in top gear at very light load. It is under these higher rpm circumstances that you want torque converter stall to be over and done with.
Imagine that same road course scenario with a 3600-4000 stall converter. It would be the equivalent of riding a clutch pedal while trying to power out of a corner. And that high stall converter will generate excessive heat. There are many companies building awesome converters--Yank is one of the best by far. But none are considering the above "pro-touring" scenario on a daily basis. Drag Race-Drag Race-Drag Race. They have blinders on. Call up the average tech guy and he will think you are nuts.