Posted by chris (IP: 216.98.199.137) on October 05, 2000 at 04:37:21:
In Reply to: I have a tranny question posted by Mavman on October 04, 2000 at 16:49:13:
First determine the power band of the engine. Then depending on the altitude, you will have to pick a stall speed that fits your power band. The problem is that you have companies advertising a stall of say xxxx to xxxx they can't possibly know what kind of torque your engine puts out and that will also help determine the point at which the tq stalls. Most people only think of stall speed as you can test by putting on the brake and stepping on the gas and see where it stalls. This is only one of the stall point of a converter. Drive down the street at say 40 and then let off the gas, then floor it and see where the rpm jumps up to. That is the important one, when it stops, that is where you want the stall speed to be in your power band. by getting the engine up to the rpm band where the converter stalls you will be getting the best performance, alas, this means a loss of gas milage and of course your tranny will run hotter since the converter is slipping more! If your going to put in a good converter, then you should also put in a transmission cooler.
The idea of the gears is not going to net more power to the street, but it aids in the torque multiplication. Most of the work can be done by a torq converter and tranny cooler.
Chris