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Lets try this another way.
If we take 40 cc's of air at say 5 psi absolute. And we add the "appropriate" amount of gasoline.
someone smarter then me should be able to calculate the amount of BTU's present, and from there should be able to calculate the final temperatures and pressures assuming exhaust gasses only. Then of course we subtract 1/3 of the energy because it is lost to the container (cylinder head, piston, et al.)
Given the BTU's, a confined space, and steam tables, we should be able to calculate new pressure and temperature for steam. Like the man said, the temp will be quite a bit lower, so we will lose less to the container, and the exhaust gas temps will be lower (albeit full of water vapor).
If we can guarantee an ABSOLUTE MAXIMUM temperature of say 700 degrees combustion with water vapor, do we still need a CAT?
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