I want to buy a car recently, but what is the difference between variable valve timing technology and variable valve lift technology? This question makes me very embarrassed.

To increase and decrease the intake air.

What kind of continuous variable nonsense? When the engine dies, it dies. Which one is not continuous?

What VVTI CVVT DVVT is the same thing, it doesn't matter which one you buy.

As for the so-called continuous variable timing lift system of VTEC technology boasted by Honda.

Just like the universe, super thunderbolt, lightning and invincible soybeans.

Its function is to match the appropriate valve lift at different engine speeds.

The purpose is to have sufficient torque at low speed and strong horsepower at high speed.

The low-speed lift of the throttle can be short and the high-speed lift can be long.

However, this thing made by Japanese cars is still immature, and the linearity is poor when it is output.

Audi AVS has done a good job, and it is much better to switch through the cam.

At present, it's useless.

This practice undoubtedly makes the engine valve more like a person's lungs to freely adjust the breathing rhythm.

At present, there is no need to entangle this thing when buying a car with double timing, which has no practical significance.