Automotive How Variable Valve Timing Works, And How it Makes Your Engine Better The EngineerJanuary 9, 2020January 9, 20203 Advertisement Manufacturers like to use a lot of acronyms on their cars. Variable valve lift (VVL) and, Variable valve timing (VVT) are two of the most popular ones. These systems sound pretty similar, but what do they do? Luckily, there’s … Read More