Quote:
Originally Posted by dcb
if you want efficiency, use a turbo. That temperature/pressure drop across the turbine? That is energy recaptured from your exhaust.
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Anyone here ever measured the EGT drop across the turbine wheel in the turbocharger? I'd always thought they ran mostly on exhaust pressure, rather than heat.
In my own personal experience, all I know is that the turbo is still stupid-hot while running. None of the other (downstream) exhaust components on turbocharged cars ever seemed especially cooler either(ie, still enough to suntan my face).
I DO know that a pound of gasoline contains some 20,000BTU and the engine loses about 9000 of them out the exhaust. Seems like there's room for improvement.