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 ...

Nissan's developed a new VVT system specifically for its e-Power hybrid systems, which maximizes EGR on cold restart to minimize emissions. Could this hellp keep combustion on the map? Trump Makes ...