Honda developed the i-VTEC technology, also known as intelligent variable valve timing and lift electronic control, to reduce the amount of fuel used by Honda automobiles. The VTEC system switches between two camshaft profiles hydraulically.
The engine can effectively have numerous camshafts thanks to Honda i-VTEC. With this technology, however, the engine’s computer has the ability to vary the cam timing and activate different camshaft lobes as the engine passes through various RPM ranges.
The amazing aspect of this technology is that it allows for the simultaneous use of high- and low-speed camshafts in the same engine. The basic goal of Honda i-VTEC is to achieve maximum engine performance throughout the whole RPM range.
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What makes VTEC and i-VTEC different from one another?
Honda added i-VTEC, which effectively stands for Intelligent VTEC, for you if variable valve timing wasn’t hard enough before. Since its introduction in Honda vehicles in 2001, almost all of their performance engines have utilised it.
The above-mentioned architecture is used in conventional VTEC engines. Only the lift and duration offered by the two distinct camshaft lobes or profiles can be controlled by this technique. In order to have better control over valve timing, Honda created and combined what is known as i-VTEC, or VTC with VTEC.
Variable timing control (VTC) allows the camshaft to be advanced or retracted in order to manage valve overlap. The exhaust valve never opened and closed simultaneously in conventional VTEC engines because the intake valve always opened first. With VTC, the camshaft lobe angles can be adjusted to allow the valves to overlap or open simultaneously. It can be altered at various RPM levels due to its changeable nature.
So, What’s the Difference Between VTEC and i-VTEC?
By allowing for camshaft angle modifications, i-VTEC adds more valve timing control. The valves must open and close differently for each RPM range in order to operate at their peak performance at both low and high RPMs. The main distinction between VTEC and i-VTEC is that the former does this.
In contrast to the conventional VTEC, i-VTEC offers a smoother power band and improved performance at both high and low RPMs.
Do i-VTEC engines work well?
Depending on how you drive, yes and no. The majority of drivers won’t notice their VTEC kicking in, but Honda automobiles with VTEC technology tend to be more efficient throughout a wider rpm range than many comparable vehicles, and they’re a lot of fun to drive in the appropriate circumstances. It only becomes operational when the engine is working at relatively high revs, which is uncommon under regular driving circumstances, especially if your vehicle has an automatic transmission. However, if you prefer driving on winding roads and you can adjust your own gears, VTEC makes a big difference.
What does the I in i-VTEC stand for?
The original VTEC technology was enhanced by Honda and eventually became the Honda i-VTEC (intelligent-VTEC). The majority of Honda 4-cylinder automobiles employed i-VTEC by 2002 after this technology became widely accessible in 2001. The i-VTEC technology combines Honda’s VTC and the original VTEC (Variable Timing Control).
The Honda i-VTEC engine is it turbo?
Turbo engines are typically thought of as having “great power, low fuel economy,” however Honda’s VTEC TURBO engine achieves fuel efficiency without sacrificing the pleasure and quality of the ride.
The 1.5L VTEC TURBO maintains all the advantages of a compact engine in terms of fuel efficiency while adding a turbocharger, direct injection, and variable valve timing. Because of this, it generates power that feels smooth from low to high revs, outperforming the torque of a 2.4L engine. Acceleration remains thrilling as a result on all types of roads, from city driving to motorways and even mountainous climbs.
Which of Honda’s engines is best?
The 2001-vintage K is frequently seen in Honda’s sportier models, such as the Honda Civic Type R and Honda Accord Sport. This two-liter four-cylinder engine can currently produce 306 horsepower and 296 lb.-ft. of torque in the Civic Type R thanks to VTEC and a turbocharger. The Honda Accord Hybrid’s “Earth Dreams K24W” engine was named one of Ward’s 10 Best Engines for 2017.
The Civic Type R’s VTEC engine is the most potent street-legal Honda to ever make it to America, producing 153 hp/L.
The K series engine continues to have excellent Honda engine reliability, as is frequently the case. Common problems include oil leakage from the front crankshaft seals, camshaft galling on older engines, and excessive vibrations from worn engine mounts.
Is Honda i-VTEC trustworthy?
Honda claims that they aim for a quality level of 120% when building their vehicles. For them, it is intolerable if even one out of 10,000 or 20,000 customers receives a subpar or damaged product. Honda merely aims for dependability. Honda vehicles are renowned for their excellent construction and dependable operation. Some vehicles have a limited lifespan after which they become worthless. However, this period seems to have no bounds for Honda automobiles.
Which is superior, VTEC or Turbo?
While VTEC is more focused on extracting the maximum amount of horsepower from the engine because torque on VTEC cars can only be felt on the VTEC range, which is anyplace after 5,500RPMs, the torque produced by a turbo is still negligible in comparison.
What is the mileage of Honda i-VTEC petrol engine?
Honda i-VTEC petrol engines provide an ARAI-certified mileage of 16 to 18 kilometers per liter. Honda vehicles equipped with -VTEC are capable of providing mileage numbers that are nearly identical to ARAI-certified values when used in everyday situations.
Does Honda i-VTEC add more power?
While you are driving, Honda i-VTEC petrol engines do not produce greater power or torque. Instead, the i-VTEC technology makes sure that the vehicle can convert between performance and economic modes as needed.
What Honda cars in India are equipped with Honda i-VTEC petrol engines?
All of the vehicles in Honda’s current lineup are powered by Honda i-VTEC gasoline engines. This applies to the brand-new Honda City, Jazz, WR-V, and Amaze.
What is the difference between VTEC and i-VTEC?
Engines with VTEC and i-VTEC technology are nearly identical. The VTC is an addition to the i-VTEC technology that further enhances the engine’s performance and fuel efficiency.
Honda stopped utilizing VTEC when?
The 2017 Honda Civic Si will include a turbocharged engine, which is a first for the trim, and will go on sale next month for around $20,000. The 1.5-liter engine has the same 205 horsepower as the old 2.4-liter four with naturally aspirated gas. However, compared to the normally aspirated engine, torque is up 18 lb-ft to 192. The Civic Si should be enjoyable to drive because it has more power accessible lower in the rpm range and a standard six-speed manual transmission.
A sport-tuned suspension with firmer springs and antiroll bars helps to improve car control. Honda claims the new Si is substantially lighter than the previous version (without providing details). A two-mode adaptive damper system (sport and normal), a limited-slip differential, and larger 12.3-inch front brake rotors are all included as standard equipment.
The coupe and sedan both feature subdued design (at least compared to the Type R). The Si gets wider side vents at the back, black trim on the front fascia, 18-inch, 10-spoke wheels, and center-exit exhaust. No flashy body kits or extraneous wings are present.
It will be interesting to see how the 2017 Civic Si stacks up against rivals like the Ford Focus ST, Subaru Impreza WRX, and Volkswagen Golf GTI. With starting costs in the mid-$20,000 range and greater power than the Si, the competition may damage Honda’s new Si. Alternately, the Si could triumph despite lacking VTEC. As soon as we can get behind the wheel, we’ll let you know.
What exactly does VVTI mean?
The creation of TokyoTOYOTA MOTOR CORPORATION’s new “Variable Valve Timing-intelligent” (VVT-i) technology, which improves performance and fuel efficiency, was unveiled today.
Modern engine development must focus on both improved fuel efficiency and improved vehicle performance. The societal needs of protecting the environment and natural resources must also be met by modern engines.
Toyota added the WT mechanism to their 4A-GE sports engines in 1991 in an effort to boost engine production and torque. Depending on the state of the engine, WT permits the intake valve to open and close in two phases.
An enhanced version of the WT mechanism is called VVT-i. In order to deliver the best valve timing dependent on driving conditions, VVT-i continually modifies the open/close time of the intake valve. The benefits of VVT-i include improved fuel efficiency, higher torque and output, and decreased nitrogen oxide (NOx) and hydrocarbon emissions.
The VVT-straightforward i’s architecture makes it incredibly dependable and simple to adapt for already-existing engine designs. The new technology is anticipated to have numerous uses in the future.
A new model that will be released within the year will be the first to integrate VVT-i engines. Tests have shown that VVT-i boosts low and medium range torque by roughly 10% while increasing fuel economy by about 6%.
How effective is the 1.5-turbo Honda engine?
How dependable are the new Honda turbo engines? The new turbo engines from Honda are dependable, but not over the entire range. The 1.5 turbo is infamous for oil contamination and turbo failure, which has been documented to occur at only 40,000 miles. The other, larger engines are much stronger and more dependable.
What RPM does VTEC turn on at?
In 3-Stage VTEC, the timing and lift of the intake valves are managed by three separate cam profiles. Since there isn’t much room in this version of VTEC because it was built around a SOHC valve head, it can only change how the intake valves open and close. In this application, conventional VTEC performance and low-end VTEC-E fuel economy advantages are combined. In 12-valve mode, which is used between idle and 2500–3000 RPM depending on the load, one intake valve fully opens while the other very minimally does so to avoid fuel from accumulating behind the valve. This 12 Valve mode causes the intake charge to swirl, improving low end performance and fuel economy by increasing combustion efficiency. Depending on the load, one of the VTEC solenoids engages at 3000–5400 RPM, causing the second valve to lock onto the camshaft lobe of the first valve. This technique, also known as 16-valve mode, mimics a typical engine operating mode and enhances the mid-range power curve. Both VTEC solenoids are now engaged at 5500–7000 RPM, causing both intake valves to use the middle portion of the camshaft. Peak power is produced at the highest end of the RPM range by the third lobe, which is optimized for high performance.
In a more recent version of 3-Stage i-VTEC, VTC and PGM-FI were merged to allow the ECU to regulate the whole spectrum of modes and archive higher performance and fuel economy advantages. The Honda CR-Z can continuously transition between low-end and standard modes between 1000 and 2250 rpm and engage high cam mode from 2250 rpm and above on SOHC.