Compression PSI

[clints]

What’s the acceptable compression PSI range for my 1970 280SL?

[Lorsar]

Many questions have been answered in previous threads, you should make a habit of using the search first.

https://www.sl113.org/forums/index.php?topic=34683.msg253956#msg253956

[dirkbalter]

Welcome to the group.
According to the book, the minimum acceptable pressure is 125 psi.
Typical pressure is between 147 to 176 psi with no more then 22 psi difference between cylinders.