Nissan s No Throttle Engine - How VVEL Works

Why Some Nissan Engines Do Not Need A Throttle Body - VVEL How VVEL Works - Variable Valve Event & Lift Subscribe for new videos every Wednesday! - https://goo.gl/VZstk7 VVEL (Variable Valve Event & Lift) is Nissan s valve system capable of operating an engine at any RPM with the throttle wide open. The throttle does exist for as a safety back-up incase any systems fail, and also has other minor uses, however the engine can operate without it s use at any load, and any RPM. This is done by varying how much the intake valves open during the intake stroke. For low load/RPM use, there are less pumping losses as the piston does not have to fill the intake manifold with a vacuum to draw in air. Atmospheric pressure is available right outside the intake valve. For mid load/RPM, response is immediate as you don t have to wait for the atmospheric pressure to travel through the intake manifold. For high load/RPM, you can open the valves as much as the design allows, giving you more power and torque versus single cam engines which cannot vary valve lift. Don t forget to check out my other pages below! Facebook: http://www.facebook.com/engineeringexplained Official Website: http://www.howdoesacarwork.com Twitter: http://www.twitter.com/jasonfenske13 Instagram: http://www.instagram.com/engineeringexplained Car Throttle: https://www.carthrottle.com/user/engineeringexplained EE Extra: https://www.youtube.com/channel/UCsrY4q8xGPJQbQ8HPQZn6iA NEW VIDEO EVERY WEDNESDAY!