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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. It was introduced with the 16-valve 2ZZ-GE engine found in the 1999 Toyota Celica.
The Toyota ZZ engine family is a straight-4 piston engine series. ... It uses Multi-point Fuel Injection, VVTL-i, and features forged steel connecting rods.
This engine uses continuously variable timing for the inlet valves. Variable valve timing (VVT) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems.
While its 11.5:1 compression ratio was a large factor in its performance, the engine could change to a second cam profile at higher RPM through Toyota's VVTL-i and was designed for operation up to 8500 RPM. The engine's high compression necessitates "premium" gasoline (91 octane or above in the (R+M)/2 scale).
Variable valve lift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy or emissions. There are two main types of VVL: discrete, which employs fixed valve lift amounts, and continuous, which is able to vary the amount of lift.
The engine featured Toyota's VVTL-i (Variable Valve Timing and Lift control with intelligence). A second stage valve lift control for intake was added to the variable intake cam phase timing. Variants of this engine were offered in the Matrix XRS, Corolla XRS and the Lotus Elise (with a Lotus ECU which added 10 bhp). Buyers had the option of a ...
The 2003–2006 Vibe was available in an economical base trim, an AWD mid-trim, and the more powerful GT sport trim. It was unveiled in November 2001. Powertrains available for this car are a Toyota-built 1.8 L straight-4 16-valve engine producing 126 hp (94 kW) on the base model (manual or automatic transmission), 118 hp on the all-wheel drive model (automatic only), or a version with VVTL-i ...
1997 Alfa Romeo 156 with the 1.6l, 1.8l and 2.0l petrol engines [6] 1998 Alfa Romeo GTV and Spider with the 1.8l and 2.0l petrol engines [7] 2000 Alfa Romeo 147 with the 1.6l and 2.0l petrol engines, [8] except for the model with the 105 bhp engine; 2004 Alfa Romeo GT with the 1.8l and 2.0l petrol engines; 2001 Fiat Stilo with the 1.8l [9] or 2 ...