Add Yahoo as a preferred source to see more of our stories on Google. Variable valve timing (VVT) and variable valve lift (VVL) have very similar names, both referring to variable valve performance.

Variable Valve Timing isn’t a new concept in motorcycle engines. The likes of BMW and Yamaha have been using this setup in their motorcycles for a while now. Even Suzuki itself implemented it on the ...

The tough guy in you says to stab that cam in retarded a few degrees for maximum top-end horsepower, while your more practical alter ego suggests advancing it a hair for improved low-end torque and ...