Reply to thread

Message: <blockquote data-quote="nicostang" data-source="post: 741167" data-attributes="member: 12809">you are right on everything except that F/I cars have less problems with elevation. This is due to the fact that air is being compressed. It might take a bit longer to spin but the power loss of a F/I car should be less than with N/A cars. N/A cars have a VERY hard time with altitude because air is sucked in by a vaccum.Pressure is the key. F/I cars can retain certain pressure under boost, while N/A cars have to deal with current atmospheric pressure at that elevation.All of this is under boost and refering to MAX numbers, and not the whole curve.Taken from: <a href="http://www.m3post.com/forums/showthread.php?p=7295661" target="_blank">http://www.m3post.com/forums/showthread.php?p=7295661</a>NA enginePsi at sea level - 14Psi at 3000 ft - 12.5Power loss 10.7%Turbo enginePsi at sea level + turbo pressure - 14+10=24psi at 3000 feet + turbo pressure - 12.5+10=22.5power loss 6.3%In order to "solve" this, what you can do is set your blow off valve to discharge air at higher PSI.So, Regarding the example stated before:Turbo enginePsi at sea level + turbo pressure - 14+10=24psi at 3000 feet + turbo pressure - 12.5+11.5=24.0 <--You Raise your PSI by 1.5 and you are back to where you were0% power lossSo in few words, you have a LOT less issues with elevation when you run boost!Have fun, and please give feedback on what you think</blockquote>