I understand that a temperature that is too high or a combustion chamber with hot spots will have issues with preignition. I can understand the theory that fuel vaporization may be enhanced as temperature goes up. So is there such a thing as a theoretical 'approximate' ideal operating temperature for most V8s if hot spots were taken out of the equation?
That is an good question. I suspect there are some good ideas out there in the engine design world that the engine engineers know, and I read some papers from time to time, but I sure don't know any particular answer.
To add another factor to the above..... the combustion efficiency is a function of the pressure rise in the engine during combustion. If you want your head to spin a bit, look up 'thermodynamic PV cycle' for internal combustion engines (which are different for for diesel and gas). Engine temp can have an influence on that cycle.... but as said, it will depend on the use and design of a LOT of other things.
