What VVT-i means?

VVT-i stands for Variable Valve Timing-Intelligence, which is Toyota's name for the variable valve technology it uses in most of its vehicles.

Is the VVT-i a good engine?

VVT-i advantages include increased torque and output, better fuel economy, and reduction of nitrogen oxide (NOx) and hydrocarbon emissions. The simple structure of the VVT-i makes it extremely reliable and easy to adapt for existing engine designs. Wide applications of the new technology are expected in the future.

Which is better i VTEC or VVT-i?

i-VTEC uses not only timing but also the lift aspect of the valves, while VVTi uses only the timing aspect. The technology that uses timing and lift aspect developed by Toyota is called VVTL-i and can be equated with that of i-VTEC of Honda.

What is meant by VVT-i engine?

VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota. The Toyota VVT-i system replaces the Toyota VVT offered starting in 1991 on the 5-valve per cylinder 4A-GE engine. The VVT system is a 2-stage hydraulically controlled cam phasing system.

What size engine is a VVT-i?

1.8L 4-Cylinder DOHC 16-Valve with Dual Variable Valve Timing with intelligence (VVT-i): This engine option delivers an impressive 132 hp and 128 lb-ft of torque.

Know Your Toyota Mechanical: Variable Valve Timing with Intelligence (VVT-i)

What cars have VVT-i engines?

Toyota announced VVT-i in 1995, and it was introduced in the U.S. on the redesigned 1998 Lexus LS 400. The model-year 2000 Celica was the first Toyota model in the U.S. with it. All current Toyota models in the U.S. use VVT-i engines except the Mirai fuel-cell vehicle, the 86 coupe and Supra sports car.

Is VVT-i a petrol or diesel?

1.33l Dual VVT-i Petrol Engine

It generates 73 kW/ 99 DIN hp and maximum torque of 128 Nm at 3,800 rpm. Mated to a six-speed manual transmission, this excellent dynamic performance is combined with fuel consumption of just 5.6 l/100 km and CO₂ emissions lowered from 136 to only 129 g/km.

What is the difference between VVT-i and non VVT-i?

In normal non-VVT or non-VVTi engines, the valve timings are controlled by a set of cam shafts and belts mechanism. ... In a VVT engine, the valve timings vary with the engine speed and engine load. This ensures that the valves open as per the need based of the engine speed and load.

What's the difference between VVT-i and dual VVT-i?

Basically, single VVT-i means the engine has variable valve timing on the inlet cam only, whereas the dual VVT-i has variable timing on both the inlet and exhaust cams.

Is VVT and VVT-i the same?

VVTL-i is a system whose principle of functionality has been derived from VVT-i but it is different in a way that it alters the valve timing as well as the valve lift(duration). Dual VVT-i as the name suggests would carry out the same function but on two valves at the same time .

Is VTEC better than Turbo?

Turbo produces more torque and horsepower obviously while VTEC is more about pushing the maximum horsepower out of the engine since torque on VTEC cars can only be felt on VTEC range meaning anywhere after 5,500RPMs but yet the torque is still nothing compared with a turbo's torque output.

What is i-VTEC and Idtec?

Honda's petrol engines are called I-VTEC while the diesel engines are called I-DTEC.

How long does Toyota VVT-i engine last?

The average Toyota engine will last between 250,000 miles to 300,000 miles.

What is the function of VVT-i sensor?

The variable valve timing solenoid is a component of the variable valve timing system that manages the oil flow depending on the engine speed and load. A VVT solenoid in good working condition improves performance and fuel efficiency.

Is dual VVT-i a 4 cylinder?

Toyota is applying a new 2.5-liter Dual VVT-i gasoline engine in its refreshed MY 2009 RAV4. The new engine is both more powerful and more fuel-efficient than the 2.4-liter engine it replaces. The four-cylinder engine is a low-friction design optimized for performance and fuel efficiency.

Are Toyota dual VVT-i engines good?

Toyota's Dual VVT-i technology adjusts both the intake and exhaust valves, which makes the system more efficient and assists in reducing emissions even further. The practical upshot of this for the driver is more power, better responsiveness, better mileage, and lower emissions.

How does Toyota VVT I engine work?

Toyota's VVT is a cam phasing system, which is one of the most common in use. It uses a variator, which is hydraulically-controlled, to change the size of the inlet and exhaust valve openings, which also affects the duration of those openings as well.

What benefit does VTEC have over I VVT?

If the valve opens, lets say 2 mm, it will now open 4 mm at higher revs. This increases efficiency at low RPMs and a lot of power is accessible at high RPMs; definitely more than a VVTi. The VVTi only alters the timing while i-VTEC alters the timing as well as lift of the valves.

Which engine is best in Toyota Hilux?

The normal 3.0 Diesel is the reliable workhorse of the family. Although not as fast and powerful as the KZ-TE it is much better than the old SFA 2.4 and 2.8 types of diesel. In my biased opinion, these models offer the best balance between comfort, reliability, off-road ability and good looks.

What is the difference between EFI and VVT-i engine?

EFI simply means the engine is fuel injected and that's been the standard since the early 1990s. VVTI is Toyota's variable valve timing engine design that allows for variable timing of the camshaft.

Do diesel engines have VVT?

The VVT system was applied to boost the engine output. In diesel engines, the full torque depends essentially on the amount of charge air, and the VVT system is effectively used to increase the charge air amount by making use of the pressure pulsation in the exhaust and intake ports.

Which Toyota engine is most reliable?

Why are old Toyotas so reliable?

Toyota vehicles have exceptional longevity and some of the most reliable engines in the industry. This is due to the company's meticulous approach to design and production. The quality management systems ensure any defects are detected and eliminated before the vehicle is sold to the customer.

Which car engine lasts longest?

What is Honda i-VTEC?

i-VTEC. Honda i-VTEC (intelligent-VTEC) is a system that combines VTEC with Honda's VTC (Variable Timing Control), a continuously variable camshaft phasing system used on the exhaust camshaft of DOHC VTEC engines. The technology first appeared on Honda's K-series four-cylinder engine family in 2001.