What is a exhaust outlet?

What is the exhaust pressure (at outlet manifold) of an automobile engine?

• I need to know the pressure at which the exhaust gases comes out through the exhaust manifold and how to measure it. Now I know the pressure will not be a constant pressure instead the pressure will vary based on the fact whether the engine is running on full throttle or not. Nevertheless, give me a range within which the pressure will lie. example: 2 bar to 6 bar etc

• Answer:

  It can be measured in many ways. A simple P.S. I. gauge. A vacuum gauge will measure the volumetric pressure by the amount of roughly 13.2 pounds of vacuum at sea level. And may also be measure with a Water Manometer as well. There are really no specifications in the broad range because the engine can be naturally aspirated, Turbocharged....and be manipulated by Compression ratio of the engine and the fuel systems...Diesel or gasoline. Good LucK Most exhaust systems are measured ahead of the Catalytic Converter to control the engine computers.