Originally Posted by exbrick
Maybe it's as simple as VTEC crossover changing valve lift which would reduce pumping losses? Maybe I should get one of those embarrassing ricer VTEC lights and test it out.
VTEC engagement on the F23 and J30A1 is at a fixed RPM point and doesn't change regardless of throttle position or conditions. It's as simple as looking down at your tach
For me to be cruising in VTEC in 4th gear I have to be doing around 105.