Variable Valve Timing (VVT) systems adjust engine valve opening and closing events to optimize performance, fuel economy and emissions control. Automotive VVT System Market products include hydraulic, cam-phasing and electronic mechanisms that precisely regulate intake and exhaust timing. Key advantages comprise improved torque at low RPM, reduced tailpipe emissions, better throttle r... https://www.patreon.com/posts/automotive-vvt-131223626