Then you are forgetting what was posted by
@Clarence Yard in a previous Class 800 thread "
The difference in the power setting is that the 800 sets were (and are) set to a different acceleration curve to the 802 sets. That is for DfT/Agility contractual reasons, to reduce engine wear on the 800 sets. It's purely a software variation between the two, which can be altered with the aid of a laptop."
And he also.made these further clarification on the situation..
"What Hitachi have done is try and match the engine performance curve to the required overall journey time whilst at the same time minimizing the torque variation to maximize engine life between overhauls/repairs.
So when we talk about "unmuzzling" the 800 sets to provide 940hp, Hitachi will only increase the raw power up to a certain speed level. People talk about 750hp/940hp as if it were a switch - it's much more sophisticated than that - they set the whole speed range up for a variety of hp "settings", taking into account the natural power curve limit and also the projected demand on the engines under certain operational conditions. They effectively create their own power curve to satisfy the journey time requirements and minimize the cost of engine wear.
Obviously, they regard how exactly they achieve this as their own intellectual property."