Does anyone know any sources (i.e. car manufacturers) that provide the exhaust air flow parameters for the some specific car engines? I need stats on various otto & diesel cycle engines (small compact car engines, large semi truck engines, etc.). When I say exhaust air flow parameters, I need to know: the temperature, pressure, and flow rate (or density) of the exhaust air immediately after it leaves the engine's cylinders. Any input would be greatly appreciated! And if you have sources please provide them. Thanks in advance! Additional comment: Would there be a way to calculate flow rate from the engine's displacement & rpm?