Thread: Any Gearhead's?
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Old 11-21-2008
jgeissinger jgeissinger is offline
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Heat and turbocharging

Put a propane torch on the casing of a turbocharger, heat it until it glows, and then tell me how fast the vanes are turning. It is airflow that spins the turbo! That airflow does come from heated exhaust gasses, but it is not the temperature that spins the air compressor (which is what a turbo is), and forces more air into the combustion chamber. The concept that wasted heat provides the power, because it comes from the exhaust side of the engine, is a common misconception. It is still wrong.
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