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adjustable wastegate 700

posted by  Mr. Ambitous on  Thu Jan 30 20:59 CST 2003
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The problem with boost at altitude is not the PSI, it's the O2 content in the air. At sea level, there is more oxygen per unit volume than there is at higher altitude. So if you are at 7000 feet, and you're pumping in 7 psi, you are getting way less oxygen than your car requires. The AMM measures just volumes of air, not oxygen. Since the oxygen is the combustion agent in your engine, the excess air does nothing for you. Thats why cars feel like they have less power higher up.
-Aaron






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