It's made by turbo,roots or cetrifical!

https://autocalc.onlinedyno.com/compression.php?boost=16&engineCR=9&afr=14.7

Only roots and procharger are spoken of,what about turbo and turbo intercooled.?

What about intake manifold temp?Does that effect octane requirements!!

intercooled-compression-ratio-chart.jpg

HEMI-ITIS has no cure.
My condition is fully BLOWN!!