Originally Posted by ShawnQ
You have to be able to move the air (intake and exhaust) and fuel fast enough to make use of those higher RPM's.
Like intense said, their VVT/VTEC allows them to do so.
Our engine, at 9K rpms, would likely fall on its face.
SQ
well that's not proven but the vibration might be a tad harsh? Anyways I think Bosch software reflash only allows us to go to 7,000 rpm.