M 2.1 maxes out about 18,000RPM. According to my calculations if I go to a 10% over crank and a 2.9 upper then ill be making 17,400 RPM @ 7,000 engine RPM. I know this is under the max blower RPM but will this really be safe to run? Car isn't going to see WOT all the time but will have the occasional blast or 1/4 run.
