I am interested in learning to understand a compressor map, I have read a few posts talking about it but still don't seem to get it . Can anyone explain how to read one without getting too technical. For example surge lines, how to tell the turbo's potential etc? Can you see how much boost you can roughly hold?
Here is a example - Its a garrett GT3571 which I bought in error Thought it had a bigger comp wheel


Cheers

Mark