Well, in an auto, when you punch it, you reach 3000rpms almost instantly, thanks to the torque converter. vtec does the same thing in the auto as it does in the 5 speed.sithlord said:hmmm i dont really notice anything at 2200rpm. i only feel car accelerating faster when the 2nd intake runner opens up. so wait. wth does the vtec do for autos?
john smith said:it is not a 12 valve then 16 valve. it is just that below 2200 rpm you are running on one primary cam lobe (operating one intake valve)and a smaller secondary lobe (operating the second intake valve for the same cylinder). at 2200 it switches both lobes to the same size as the primary.