Engineering Explained on MSN

Variable valve lift vs variable valve timing - VVL vs VVT

What is VVL? What is VVT? How does VVL/VVT work? What is variable valve lift? What is variable valve timing? We're going to ...
Hot Rod

What Is VVT and Should It Be Disabled?

Since the beginning of hot rodding, gearheads have endeavored to increase the performance of internal combustion engines through the optimization of valve timing. It's been proven time after time that ...
webBikeWorld

Harley-Davidson plans VVT V-twin

Harley-Davidson has filed a patent application for a variable valve timing (VVT) V-twin engine, possibly for the Sportster to improve economy and reduce emissions. The iconic American manufacturer has ...
The Drive

Variable Valve Timing Patents Could Bring the Harley-Davidson V-Twin Into This Century

COVID-19 has been unkind to even the healthiest of businesses, but to already-troubled companies like the storied Harley-Davidson, the pandemic came as an unwelcome wildcard. With its dated lineup and ...