Engine Knock Solution
well i had this problem when i lauched the car, i heard a ticking noise from the engine bay between 1000-1500rpm. i changed the belt tensioner and the belt and no more noise. so the problem wasnt really the engine, it was the tensioner. so the tensioner will also make noise if you launching from 1000-1500rpm.
so whoever has this problem, there goes the cure. im so happy that my car doesnt sound cheap anymore