Originally Posted by pbonsalb
I would say at least 99.9%. There are only several built motor supercharged M3s that I have read of. Few people will spend another $10k to build a motor on top of the supercharger kit\ and you get only about 10% more power for spending twice as much money.
I could not agree more. If I were going to build this engine I would keep it stock compression with a rotrex on 11 psi. It would be an absolute beast throughout the entire rpm range.