Extra speed Note:
This cheat involves editing a game file so make a backup copy of
the file before going on. Now use a text editor to edit the
"enginerestricted.cfg" file in the "\gamedata\vehicles\" folder.
You will see a list of numbers like this:
These numbers identify how powerful the
engines will be. For example, at 500 RPM, the engine will
generate 35 units of torque. The middle numbers control the
level of torque when the throttle is off. If the last numbers
are made larger throughout the list, then the engine will be
able to accelerate through higher gear ratios. This means at
Talladega, where top speeds are normally at 190 mph, your car
can now travel above 250 mph. The AI's engines will be also
improved too, but they will always use the original gear ratios,
making their top speeds only a bit better. They will make about
220 mph at Talladega with full difficulty on. You should attempt
to mimic the normal patterns for these numbers
Caution:
These cars do have limits. Their brakes are not any better, so
you should not attempt going any faster at the slower tracks.
Raising the engine power will take trial and error to get the
right balance of speed and realism. If the torque settings
exceed 1800, the tires will lose grip and spin. The gear ratios
can also be changed by making the numbers smaller. Finally you
can also rename the two *.cfg files to trick the game into
allowing a normal, unrestricted engine at a Superspeedway.