Quote Originally Posted by N.O.T View Post
i think you can categorise argentina and mexico as special events since both are quite high up the mountains and oxygen deprived engine performance matters.
Not that high.
And see these things:



Those things have magic beans inside which take air and cram it into the engine....and some of the magic is if there is less at say 1500m the magic parts inside just spin around faster and it crams in more air..
Totally magic...

It was a new invention a long time ago before you were born and they put them on some of these things



And sometimes gear driven and two stages


So that miraculously they made as much power at 9000m as at lower altitudes...

Should you want to try and read a little about how engines work and the methods for compensating for marginally less dense air at altitude you might try looking at this
http://en.wikipedia.org/wiki/Rolls-Royce_Merlin

Here is another one of those things, the magic "turbochargers" things are clearly visible about mid-way in the "booms' on top..

Amazing things turbochargers if you learn a bit how they work..

Psssssst the canister on the first piccie is called the "waste gate actuator" and it has a magic thing inside it to control the speed of the magic things in the turbo....that's why altitude is, when speaking of a mere 1600-2000m , unimportant to anybody in the real world...

And heres something that was made not even 3 km from where I write.. They used 4 turbochargers, exhaust driven

Surprising a little that you didn't ever hear about these magic turbochargers.