straight 6 roar
New member
- Joined
- Nov 7, 2010
- Messages
- 1,031
At standard day temperature, pressure at sea level is 14.7 psi, at 3800ft it's approximately 12.8 psi. Turbocharging certainly retains more power at altitude vs. NA, but stills takes a hit. When I was running a 64/71/14 on my 12 valve it was night and day difference between sea level and 5000 ft where my parents live.