Cylinder Pressure

RustyRatRod said

9.5 is static in this conversation. Dynamic for pump gas they SAY is 8.5 max, but I like to play it safe and stay just under or right at 8. Because of things like idling in traffic on a hot humid day causing heat soak, detonation becomes more of a problem. Better to be safe than sorry.

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Ah, OK, well that makes sense too, because in the article it did say something about the "safe range" to be in, which was actually lower than the static.

From the article:

It appears that most gas engines make the best power with a DCR between 7.5 and 8.5 on 91 or better octane.

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When compression is discussed in so many threads on here, it leaves one wondering which one we are talkin about.

Cool, now to figure what I have, and where I need to be.