What does VVTL-I stand for?
VVTL-i (Variable Valve Timing and Lift intelligent system) (also sometimes denoted as VVT-iL or Variable Valve Timing and Intelligence with Lift) is an enhanced version of VVT-i that can alter valve lift (and duration) as well as valve timing.
What is the difference between VVT-i and VVTLi?
What is VVTLi – Variable Valve Timing and Lift Intelligent System? 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).
How does Toyota VVTL-I work?
The VVT-i system uses engine speed, intake air volume, throttle position and water temperature to calculate optimal cam timing. The ECU can advance or retard the intake cam depending on light, medium or heavy load, optimizing output throughout the entire powerband.
Is VVT-i better than VTEC?
VTEC (Variable Valve Timing and Lift Electronic Control) is a valvetrain system developed by Honda that allows engines to achieve turbo level specific output without the bad fuel efficiency that turbocharging normally introduces….Comparison chart.
| VTEC | VVT-i | |
|---|---|---|
| Launched | 1983 | 1996 |
What does Toyota VVT-i mean?
Variable Valve Timing-intelligent
Tokyo―TOYOTA MOTOR CORPORATION announced today the development of its new “Variable Valve Timing-intelligent” (VVT-i) technology, which increases performance and fuel economy.
Is VTEC and i-VTEC same?
The only difference between this i-VTEC engine and the older VTEC engines is the addition of the VTC system. The intake camshaft has the automatic self-adjusting cam gear which continuously optimizes valve overlap for all RPM ranges.
What does the i stand for in VVT-i?
What is 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.
What is the difference between a 2JZ GE and 2JZ GTE engine?
The engine block, crankshaft, and connecting rods of the Supra’s 2JZ-GE and 2JZ-GTE are the same, with notable differences being that the 2JZ-GTE has recessed piston tops (giving a lower compression ratio), oil spray nozzles to aid in cooling the pistons and a different head (redesigned inlet/exhaust ports, cams and …
What is meant by i-VTEC?
i-VTEC stands for Intelligent Variable Valve Timing and Lift Electronic Control, a system created by Honda to improve fuel consumption of Honda vehicles. The VTEC system uses two camshaft profiles and hydraulically selects between the two.
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.
Why is i-VTEC the best?
The DOHC VTEC improved the volumetric efficiency of a four-stroke internal combustion engine, resulting in higher performance at high RPM, and lower fuel consumption at low RPM. Since its first introduction in 1989, the VTEC technology has completely changed the way the world looked at engines.