What is VTEC and How Does it Work? - EricTheCarGuy

VTEC or Valve Timing Electronic Control is a system that's been used by Honda in passenger cars since 1991. I believe the 1991 NSX was the first production vehicle to get this system. It has since been used in several other Honda vehicles. Late model VTEC equipped vehicles use the iVTEC system which also changes cam timing as well as lift and duration. The system is designed to give you the 'best of both worlds'. You get to switch between 2 cam profiles. One for fuel economy, one for performance. A lot of people think that when VTEC kicks in you get an extra Boost of power. Not true in my experience. It does however extend the torque curve to give you more performance after it does switch over. There is no set RPM where VTEC switches. The computer looks at several variables and calculates when to activate the VTEC solenoid. It's a cool system and for the most part rarely has issues. The most common issues I've seen with VTEC are the result of low, or incorrect oil viscosity. So if you have a VTEC engine, keep the oil topped off and make sure you use the viscosity listed on the oil cap. The animations are courtesy Honda Motor Company, thanks guys. The best place for answers to your automotive questions: http://www.ericthecarguy.com Facebook: https://www.facebook.com/EricTheCarGuy?fref=ts Twitter: https://twitter.com/EricTheCarGuy Google+: https://plus.google.com/100195180196698058780/posts Information on Premium Membership: https://www.ericthecarguy.com/premium-content-streaming-etcg-content Stay Dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.

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★What is Honda VTEC and VTC?★
What is Honda VTEC ( Variable Valve Timing and Lift Electronic Control ) ? What is VTC ( Variable Timing Control ) or VVT ( Variable Valve Lift ) ? They are actually two different technologies that are used to make an engine more efficient. It doesn't matter how many pistons the engine has, these two systems can improve them. Here's my simple explanation. Like and Subscribe and feel free to browse and watch other videos on my channel! SUBSCRIBE: https://www.youtube.com/c/GTContent Follow me on social media: Facebook: GT Content - https://www.facebook.com/GTLifey/?ref=aymt_homepage_panel Twitter: GT Content - https://twitter.com/gt_content Instagram: GT Content - https://www.instagram.com/gt_content/?hl=en

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This is what VTEC should sound like. The crossover to the high cams should be linear without any power loss. My car was tuned to make maximum power across the RPM range. This was done in 4th gear. I Dynoed 210whp & 154wtq on a Dynojet. Car: 2008 Honda Civic Si FG2 Tune: Hondata FlashPro Mods: I/H/E VTEC kicks in at 4k RPM all the way to a redline of 8.6k RPM. "VTEC (which stands for Variable Valve Timing and Lift Electronic Control) is an electronic and mechanical system in some Honda engines that allows the engine to effectively have multiple camshafts. As the engine moves into different rpm ranges, the engine's computer can activate alternate lobes on the camshaft and change the cam's timing. In this way, the engine gets the best features of low-speed and high-speed camshafts in the same engine." - HowStuffWorks Here is my Civic's record at the drag strip: https://www.youtube.com/watch?v=yI3eB-ZJeWo