Variable Valve Lift vs Variable Valve Timing – VVL vs VVT

Back in the day, when things were simpler, they might have been a lot easier to work on but the efficiency may not have been at the forefront of discussion when engineering these machines and thus, they might have been good at one thing but not too much else.

Today, with more technology at our fingertips and better insight on how exactly to be more well rounded with that technology, many measures have been put in place so that engines can be good at more than one metric like just making power or being efficient on fuel. Why not have everything?

With a couple of processes knwon as variable valve lift and variable valve timing, we’re able to not only get better gas mileage and make more power but we’re also able to be a little bit more environmentally conscience without hurting either one of the other aspects of performance. It’s all about controlling that air/fuel combustion mixture at the right times.

This time, the guys ever at Engineering Explained dive into the concept with a little bit of help from the Humble Mechanic. Make sense yet?