What is the variable valve timing?by caacarOctober 27, 2019 1. VVT refers to a valve timing of the engine valve opening time, and the variable valve timing Tags:Professional nounsproper nouns Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment. Δ