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In last month's "Tech Scene," we compared the differences between Toyota's VVTL-i (Variable Valve Timing and Lift-intelligence) and Honda's VTEC (Variable Valve Timing and lift Electronic Control).

Without variable valve timing, these intake and exhaust valves would operate in the same manner regardless of the engine’s RPM (revolutions per minute) speed or the driving environment. This isn’t ...

In last month's article we saw t it would be highly desirable to make an engine's valve timing adjustable by automatic control to achieve strong torque at both low and high revs. This is easier said ...

After two-wheeler brands Ducati, Yamaha and BMW, Honda is preparing to introduce Variable Valve Timing technology to its motorcycles. In fact, the patents for an engine featuring the Variable Valve ...