If you get a blue tooth or wifi OBD2 adaptor and
Torque Pro for Android you can use it to do some practice times.
Seems to be a very useful tool to see in realtime what the ecu sees ... great tipp, thanks for this! I guess it could even proove how colder a cold air intake really is... I think I will get me one. Better than a new wrist watch... seen in another thread ;-)