Thread: Gopro + 1m test
View Single Post
      01-05-2013, 08:27 AM   #21
bdaddylo
Major
bdaddylo's Avatar
United_States
168
Rep
1,479
Posts

Drives: 2017 F80 M3
Join Date: Dec 2010
Location: Houston, TX

iTrader: (3)

Garage List
Quote:
Originally Posted by meng4n1to View Post
Also remember we are high up on the reef in Johannesburg, 1765m above sea level, which does give boosted cars a huge advantage over NA cars.

Do agree, keep it on the track.
Correcting my original post.

Higher altitude means less pressure and hence less dense air. Less pressure means the turbo has to spin faster to achieve the same pressure ratio at sea level and also the FMIC is less efficient at cooling. How much power loss for a FI engine at altitude depends on how efficient the turbo or supercharger and FMIC are operating.
__________________
_______________________

1991 E30 M3/Brilliantrot
2017 F80 M3/AW

Last edited by bdaddylo; 01-05-2013 at 12:25 PM..
Appreciate 0