u/Hot-Goose-4707

Let's say that we have three different engines with the same horsepower and torque, peak power at 7000 rpm, and redline at ​7500.

The key difference are their peak torque rpm:

Engine N.1 peaks at 6200 rpm

Engine N.2, at 5500 rpm

Engine N.3, at 3000 rpm

If I need to couple them each with the same 6-speed transmission, how I should tune them so they can have between them the same lap times around any race track?

I was gifted by a friend an 1.6 xbox, Unmodded and with a dead HDD drive.

Fortunately, I also got a eeprom reader, and did a eeprom dump to my computer.

Now, how can I replace the original HDD with a new one?