Subaru Enthusiasts Car Club of the Sierras - View Single Post

knucklesplitter · 2006-11-09, 06:43 PM

Yeah, there is more than a 2psi (about 4in.Hg) change in ambient pressure (compared to 14.7psi ) from sea level to 4500'.

Can somebody direct me to an explanation of this assertion that turbo'd engines only lose 5% compared to NA's 20%? I don't buy it, especially if the turbo car is not specifically tuned for the higher elevation. I bet there is an advantage, but not that much. I'm open to learning something though, so...

2006-11-09, 06:43 PM	#55
knucklesplitter EJ205 Real Name: Matt Taylor Join Date: Jun 2005 Location: Cousin-Fck, Carolina Posts: 1,475 Wish in one hand and sht in the other...	Yeah, there is more than a 2psi (about 4in.Hg) change in ambient pressure (compared to 14.7psi ) from sea level to 4500'. Can somebody direct me to an explanation of this assertion that turbo'd engines only lose 5% compared to NA's 20%? I don't buy it, especially if the turbo car is not specifically tuned for the higher elevation. I bet there is an advantage, but not that much. I'm open to learning something though, so... Last edited by knucklesplitter; 2006-11-09 at 06:45 PM.