Hi everyone!
I live in Mexico City that is about 1600 meters high, and I fly 600 meters above it, so that would be about 7200 ft.
I've noticed that obviously because here the air is less dense than at sea level, the planes need more power. But does anyone can tell how much they are affected??
And how I can know how much more power I need here? for example I would need an engine with .10 more displacement here than at sea level? or in HP or something like that?

Thanks in advance,
Eduardo