What makes vtec so special

That engine was rated at more horsepower per liter of displacement than most super-cars at the time. By introducing the option of two camshaft profiles combined with variable valve timing, Honda optimized the performance even further. But in addition, the intake cam can advance from 25 and 50 degrees, optimizing the valve timing for every RPM range.

This delivers smooth power with great gas mileage in nearly every driving situation. Write a comment Name required. Mail will not be published required.

When you wanted more power, a larger cam profile was selected. Simple as that. A: No. Variable valve timing is basically the variable phasing of the valve.

The valve opening is either advanced or retarded in a VVT system. The valve lift is not changed in a VVT system. A: In the 80s. The Honda company was a tad over 40 years old when its most famous technology was invented.

Q: Meh, other companies have VVL too. What's different about VTEC? A: Porsche had filed a patent for VVL back in but is unknown whether the system had been tested at all. Their system utilised an oscillating cam to change the valve lift. Fiat later developed a VVL prototype that functioned in the s by varying the fulcrum of the cam follower and patented it US Patent 3,, GM patented its own VVL system in but encountered problems and later abandoned the project.

Alfa Romeo's "variatore di fase" is a form of VVT. Not VVL. VTEC uses lockable rocker arms with dual profile camshafts. Q: What other brands use VVL? A: There are many forms of VVL. This is where that signature "VTEC kicking in" sound comes from. Now next time you "get into VTEC" while driving your Honda, you'll know exactly what's happening inside your engine.

Join Now. New Cars. Car Culture. Type keyword s to search. In some cases, it can even make it harder to start the engine. Now, what the i-VTEC technology does is that Honda engines work effectively by having multiple camshafts.

As you can see, Honda i-VTEC technology provides fuel consumption economy without sacrificing performance. If you have a Honda, the best way to maintain your vehicle as good as new is to bring your car to Honda Service Centre in Penang. This way you can ensure your car is in good hands. Get an accurate diagnosis at your nearest authorized Honda Service Centre. August 30, By exabytes01 , 0 Comments.