426 hemi crate engine

Why not do it right? You have the money, you spent enough on that great engine. Have it dynoed and generate a curve. Then plug in the curves that would be equivalent to the transmission ratios. You shift where either torque or HP crosses in the various gears

You can also do that with the various in-car performance monitors, you can do this from torque, acceleration (g's)

Here is a random example. You don't need to RUN the car in each gear, you just need a good clean curve in a known gear usually "straight through." Then you can plot the curves multiplied by the ratio of the gearing

12bolt-ShiftPoints.jpg