Hi you all Seaching in internet, I have not found an answer to this: In a air-gasoline stechiometric mixture, what can be the volumen relationship between the unburned (intake gas) and final exhaust gases?. I guess temperature is important, but lets consider a normal working temperature for that engine. And lets also consider the cylinder is filled at 1 bar. I just only want to have an idea of how much the gas is expanded after combustion. Thanks in advance.