![]() ![]() Some racers utilize naturally aspirated engines, and others have boosted engines. The “race to the clouds” is what some call it.Ģ019 marked the 96 th running of this prestigious race where 100 vehicles were accepted and qualified to race. It’s roads close to public traffic once a year as race teams from all over the world pilot their vehicles through 156 turns up the 12.42 mile course that starts at 9,000ft elevation and ends at 14,115ft at the summit. Pikes Peak International Hill Climb is a world-famous race that takes place in Colorado Springs, CO. This extra tunability is found only in turbocharged applications. ![]() At high elevations turbochargers compress more air into the engine cylinders making up for the lower air density allowing the engine to produce power as if it was at sea level. Turbocharging at elevation is an efficient way to minimize horsepower loss due to elevation and lower air density. At 15,000 feet of elevation your engine will lose 45% of its power due to lower air density.At 15,000 feet of elevation your engine will make 55 horsepower.At 10,000 feet of elevation your engine will make 70 horsepower.If you have 100 horsepower at sea level by the time you get to 5,000 feet of elevation your engine is making 85 horsepower. The higher the ambient pressure (psia), the more oxygen it contains.Īs a general rule, a naturally aspirated combustion engine will lose 3% of its power for every 1,000 ft of elevation gain. The chart below shows how pressure changes with elevation. That said, oxygen levels at any set volume (a breath of air, or an engine cycle) at sea level contain more oxygen then the same (breath of air, or an engine cycle) at a higher elevation. This article will teach you more about how to turbocharge at elevation.Ĭontrary to belief, the higher you are in elevation the less atmospheric pressure you experience. As a car drives higher up a mountain road it starts to lose more and more horsepower because less and less oxygen enters the cylinder per cycle. A similar thing happens to an engine’s horsepower. Have you ever tried to exert yourself at elevation and notice you become out of breath more quickly than at sea level? This is because the oxygen density of the air you breathe decreases as you go higher in elevation. AugTurbocharging At Elevation Turbocharging at Elevation ![]()
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