when in high cam these "oil squirters" activate, because at higher rpm you need to keep the engine lubricated very well. the conventional oil delivery probly isnt as refined for high rpm so theres oil squirters in our motors....dont ask me how the hell these work coz i wouldnt have a clue but i know theyre there.

but the moral of the story is, your car is fine. its completely normal if its just during vtec. once tuned it might not do it as bad, but as racinghonda jokingly said to me when your pulling away from someone just call out "go go gadget smoke screen"