Hello, I was a bit busy with oil processing some time ago, in the context also with the use for energy production and in engines. From then on I still know 100% that a combustion and no explosion takes place in the engine. Now yesterday I discussed with two friends about what led to a bet. Now I have been looking intensively for an hour and nowhere found an explanation that would suffice. s with our bets not because you can find a post for every opinion. I hope, here someone knows the topic and can give me a reliable source for: “Flame front speed motor” (read 25 – 30m / sec. but in a forum) “Flame front speed combustion” “Flame front speed explosion” Thank you in advance! Greetings, Marianne