The developments in the automobile market in recent years both surprise and excite car lovers. Although many different technologies emerged in this rapid development process that started recently in the 2000s, the most popular among them were Honda’s VTEC and i-VTEC systems. VTEC is the first system made in this field, and i-VTEC is a system that has become smart with the help of technology in recent years.
VTEC and i-VTEC systems enable you to get maximum efficiency from the engine even at the lowest and highest revs in Honda vehicles, but as you can see from the slight change in their names, i-VTEC is smarter and much more successful than its predecessor, in line with today’s technology. Let’s see the details you need to know about these systems by examining in detail the questions such as what VTEC and i-VTEC are, how they work, what are the differences.
What is VTEC?
Variable Valve Timing and Lift Electronic Control, in Turkish, Variable Timing Valve Control System, in short, the VTEC system was first introduced in 1989. This system, which is used in the DOHC engine of the Honda Integra XSi model, became indispensable for many Honda models until the 2000s.
So what is i-VTEC?
Intelligent Variable Valve Timing and Lift Electronic Control, which was developed by Ikuo Kakitan, was first introduced in 2001 with the Intelligent Variable Timing Valve Control System, briefly i-VTEC system. Since then, we have started to encounter i-VTEC in all Honda models with many different equipment.
What does VTEC and i-VTEC do?
VTEC and i-VTEC systems, with their simplest definition, ensure maximum efficiency from the engine even at the lowest and highest speed. The camshafts in the engine that control the air passage are multiple in these systems. These shafts increase engine performance by activating according to the number of revolution minutes referred to by the abbreviation RPM.
What is the difference between VTEC and i-VTEC?
The basic task of VTEC and i-VTEC systems is the same, to achieve maximum performance at the lowest and highest rpm. The original VTEC system provided performance control over two different profiles. The first profile controlled fuel efficiency at low rpm, while the second profile offered stable performance at high rpm.
The original VTEC system was more effective at high RPMs, thus upsetting the combustion efficiency. i-VTEC, on the other hand, steps in even at a much lower rpm and takes over the event. Since it offers two basic camshafts, it provides maximum performance by intervening instantly according to the number of revolution minutes mentioned with the abbreviation RPM.
How does Honda i-VTEC work?
Let’s examine it through an example; Although it is impossible on an engine without i-VTEC system, let’s say you start the car and you are driving at 10 – 15 RPM. The valves controlled by the camshafts must provide the air flow and the pistons must work. However, this operation is almost impossible at such a low RPM. It is possible to give a similar example for high rpm.
In these examples, the engine may come to a shutdown point due to the camshaft. In the i-VTEC system, on the other hand, since there are camshafts compatible with both low speed and high speed, the valves and pistons will always provide the correct flow, no matter what speed the vehicle is running.
The original VTEC system didn’t help much in terms of fuel economy when turned on after 5500rpm. However, since the i-VTEC system can operate at much lower revs, it manages to offer the performance and torque power needed by the drivers in the most accurate ratio.
The importance of the i-VTEC system:
The i-VTEC system comes internally in the engines of many Honda models introduced to the market in recent years, and by keeping up with the developing automobile technology, the need It provides the required fuel efficiency with the help of different systems. Therefore, the i-VTEC system is extremely important and necessary.
If the Honda model you are using has an original VTEC system, not an i-VTEC system, it is possible to change it. If you switch to the i-VTEC system, your engine performance will definitely increase. Considering the gasoline prices, it seems very logical to save money by increasing fuel efficiency with the i-VTEC system.
We answered questions such as VTEC and i-VTEC, which provide maximum performance at all revs in Honda vehicles, how they work, what are the differences, and we talked about the details you need to know about these systems. If you are using VTEC and i-VTEC systems, you can share your experience in the comments.
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