Originally Posted by gimmemoreboost
Its not all about airflow either. The piston speeds in the 2.0 are slower at 8k that the 2.3 at 7k.
Why the heck you think its 'bout then if its not airflow? Bore, stroke, rod ratio, head(s), combustion chambers, valves, valve train, cams, intake, exhaust all have to do w/ air velocity= airflow. Think of the motor being a pump. The rpm's fall where they fall. I'll take a motor that'll make max power at 6000 than at 8000.