Originally Posted by ProjectMayhem
Found my own answer its a 1.6L. but that goes back to my point why not shoe horn a 2.3L or bigger compressor in there it seems many might be looking for more than the 1.6L can give them.
Well...using a larger compressor will increase compressor efficiency for sure.
It will also allow for people who port the heads, re-valve, install new cams, get new exhausts, intakes, remove the balance shafts, raise the redline, etc to make good use of their mods and get more power.
What that chart is saying is that with the stock AMG supercharger, no matter how much extra engine work you do, you are limited by the maximum airflow of the supercharger - about 380WHP.