This is the theory I was taught. I never saw the inside of a combustion chamber while and engine was running in real life. Although I believe compression and combustion chamber shape have a bigger effect in producing power than the speed of the burn. Many lower performing engines don't completely burn all the fuel that is injected in the cylinder. I believe burning all or as much of the fuel as possible is the most effective way to gain power, more so than slowing the time down it takes to burn. Anyone else have any input on this?
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