No smoothing:
Smoothing factor of 1:
Smoothing factor of 10:
Remember the car made 267.
I can provide screen shots of the vehicle speed curve which clearly shows acceleration falls off near the top of the gear as you would expect for a car with an M90 and rockers. This also suggests torque is falling off, yet this program suggests the opposite.
Here are the same graphs with third gear pulls as well:
If all you're looking for is change in performance, just calculate average acceleration.
Also which tire diameter is this thing supposed to use? Actual or theoretical? Doesn't specify and automatically selects theoretical.