Originally Posted by MasterChief
i got another question..what is vtec? i know its and engine, but a friend of mine said something about when the vtec kicks in is when the car will start to take off better... the way he explained it was that at a certain rpm the vtec kicks in and gives the engine whatever it has to perform...like a turbo in a way, i know its a long shot from turbo but in the same effect that a turbo performs once brought to a higher rpm
short explanation is that VTEC is an oil pressure operated system which changes the timing and cam profile for high upper RPM gains, while still maintaining a normal economy idle-well profile for regular driving, while giving a more aggressive cam profile for "highway-speed lane changing, and onramp entering"