How VTEC works ?

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iVTEC How it Works -EricTheCarGuy
iVTEC How it Works is a long standing requested video. Back with I did the video on the VTEC explanation I was asked about doing a video on iVTEC which is slightly different than VTEC. First you need to understand the basic operation of the cam shaft, once you have that, and you know a little about how that cam shaft effects performance, you can then begin to understand how iVTEC works. In essence, as far as the Honda system is concerned, it varies the cam 'timing' to optimize performance and fuel economy. Many companies employ similar systems to this but they may perform the operation differently. This video focuses on the Honda iVTEC system. That said, you may notice that the VTEC system on this K series is a little different in that instead of having a cam with a higher lift and duration, it switches between 1 and 2 valves on the intake side. So when VTEC engages on this engine it actually activates another valve in the cylinder instead of changing lift and duration. It still alters cam timing via the iVTEC system however. Once again, to optimize power output and fuel economy. Either way, I hope this video helps with your understanding of camshafts, cam timing, lift, duration, VTEC, and iVTEC systems. Thanks for watching. The best place for answers to your automotive questions: Related Videos How VTEC Works: The Basic Parts of an Engine: How Oil Pressure Works: K Series Valve Adjustment: F Series Valve Adjustment 2.2L: B18C VTEC Valve Adjustment: B18B Valve Adjustment: J Series Valve Adjustment (Part 1): J Series Valve Adjustment (Part 2): Useful articles. HVAC problems Engine overheat No start problems Idle issues Performance issues Diagnosing Noises Diagnosing Vibrations ns Electrical Problems Brake Issues Transmission issues Buying a Used Car Leaks MPG EricTheCarGuy code lookup: The best place for answers to your automotive questions: Discussion about this video: ivtec-how-it-works#122861 Social Media Links. Facebook: Twitter: Google+: Instagram: Information on Premium Membership: 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.

Ultimate Honda VTEC Compilation (S2000,Civic,Integra)
Facebook Page : THE Vtec compilation! Many S2Ks,Civics and Integras with beautiful Exhaust notes! Rate-Comment-Subscribe

How VTEC Sound Like
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:

Honda VTEC Compilation. A few VTEC kick's