Originally Posted by b16aEGcivic
I was under the impression that the d16z6 kicked in at 4800...:dunno: I could be wrong
No, ur right - my old POS d16z6 always hit at 4800. BTW, the reason you are having trouble hearing it engauge is because you are using a Cold Air intake instead of a Hot air intake - Hot air intakes are the ones where you can REALLY hear VTEC hit.