Originally Posted by MasterChief
that makes more sense now...what is the difference in the way it works for the other vtec engines? like the vtec-e and the dohc?
VTEC-E is a fuel saving more economical version of VTEC...its like the opposite of the performance asspect you usually associated with VTEC. DOHC VTEC is the same as the SOHC VTEC, except it uses two camshafts to control duratioin and lift. One for intake and one for exhaust as opposed to the SOHC which uses one cam to control both functions.