The other day I swapped in a new motor, but ive been having this issue every time i hit vtec and after, I seem to have a coolant leak somewhere, it drips right on top of the downpipe and smokes thats how i know theres a leak, but once again only after vtec. Yes I have checked all my lines, for proper connection and loose connections, torn or ripped lines. And after i let my car sit for a while the coolant drip goes away. Headgasket is perfect too. Can anyone help me out ?