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Valvematic
VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota. It was first introduced in 1995 with the ''2JZ-GE'' engine found in the JZS155 Toyota Crown and Crown Majesta. The VVT-i system replaces the Toyota VVT system first introduced in 1991 with the five-valve per cylinder '' 4A-GE'' engine found in the AE101 Corolla Levin and Sprinter Trueno. The VVT system is a 2-stage hydraulically controlled cam phasing system. VVT-i varies the timing of the intake valves by adjusting the relationship between the camshaft drive (belt or chain) and intake camshaft. Engine oil pressure is applied to an actuator to adjust the camshaft position. Adjustments in the overlap time between the exhaust valve closing and intake valve opening result in improved engine efficiency. Variants of the system, including VVTL-i, Dual VVT-i, VVT-iE, VVT-iW and Valvematic, have followed. VVTL-i VVTL-i (Variable Valve Timing and Lift intellig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Valve Timing
In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. Increasingly strict emissions regulations are causing many automotive manufacturers to use VVT systems. Two-stroke engines use a power valve system to get similar results to VVT. Background theory The valves within an internal combustion engine are used to control the flow of the intake and exhaust gases into and out of the combustion chamber. The timing, duration and lift of these valve events has a significant impact on engine performance. Without variable valve timing or variable valve lift, the valve timing is the same for all engine speeds and conditions, therefore compromises are neces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyota ZR Engine Cutaways Valve Gear
is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 million vehicles per year. The company was originally founded as a spinoff of Toyota Industries, a machine maker started by Sakichi Toyoda, Kiichiro's father. Both companies are now part of the Toyota Group, one of the largest conglomerates in the world. While still a department of Toyota Industries, the company developed its first product, the Type A engine in 1934 and its first passenger car in 1936, the Toyota AA. After World War II, Toyota benefited from Japan's alliance with the United States to learn from American automakers and other companies, which would give rise to The Toyota Way (a management philosophy) and the Toyota Production System (a lean manufacturing practice) that would transform the small company into a leader in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honda
is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a production of 400 million by the end of 2019, as well as the world's largest manufacturer of internal combustion engines measured by volume, producing more than 14 million internal combustion engines each year. Honda became the second-largest Japanese automobile manufacturer in 2001. In 2015, Honda was the eighth largest automobile manufacturer in the world. Honda was the first Japanese automobile manufacturer to release a dedicated luxury brand, Acura, in 1986. Aside from their core automobile and motorcycle businesses, Honda also manufactures garden equipment, marine engines, personal watercraft, power generators, and other products. Since 1986, Honda has been involved with artificial intelligence/robotics research and released their ASIMO rob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyota GR Engine
The Toyota GR engine family is a gasoline, open-deck, piston V6 engine series. The GR series has a 60° die-cast aluminium block and aluminium DOHC cylinder heads. This engine series also features 4 valves per cylinder, forged steel connecting rods and crankshaft, one-piece cast camshafts, and a cast aluminium lower intake manifold. Some variants use multi-port fuel injection, some have D4 direct injection, and others have a combination of direct injection and multi-port fuel injection or D4-S. The GR series replaces the previous MZ V6 and JZ inline-6, and in the case of light trucks the VZ V6. ''Note: Power ratings have changed due to SAE measurement changes for 2006 model year vehicles. Toyota rates engines on 87 pump octane, Lexus rates engines on 91 pump octane.'' 1GR 1GR-FE The 1GR-FE is the version, designed for longitudinal mounting in RWD and 4WD pickup applications. It has a bore and a stroke of . Output is at 5200 rpm with of torque at 4000 rpm w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyota S Engine
The Toyota S Series engines are a family of straight-4 petrol or CNG engines with displacement from 1.8 L to 2.2 L produced by Toyota Motor Corporation from January 1980 to August 2007. The series has cast iron engine blocks and alloy cylinder heads. Table of S-block engines 1S The 1S is the first version of the S-series engine. It is a member of Toyota's ''Lasre'' engine family (''Lightweight Advanced Super Response Engine''). Bore and stroke are 80.5 x 90.0 mm. The engine was first seen in 1981, and was fitted to a wide range of Toyotas, in both RWD and FWD applications. 1S (1S-U) Original ''1S'' engine, designed for longitudinal, rear-wheel-drive applications. Designated ''1S-U'' with Japanese emissions controls. * Production: July 1981 — unknown * Displacement: 1832 cc * Mounting: longitudinal * Type: SOHC 8-valve * Bore/stroke: 80.5 × 89.9 mm * Compression ratio: 9.1 * Outputs: ** at 5,400 rpm / at 3,400 rpm * Applicati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lexus IS
The is a compact executive car sold by Lexus, a luxury division of Toyota since 1999. The IS was originally sold under the nameplate in Japan from 1998 (the word ''Altezza'' is Italian for 'height' or 'highness'). The IS was introduced as an entry-level sport model positioned below the ES in the Lexus lineup. The first-generation Altezza (codename XE10) was launched in Japan in October 1998, while the Lexus IS 200 (GXE10) made its debut in Europe in 1999 and in North America as the IS 300 (JCE10) in 2000. The first-generation models were powered by a straight-six engine and available in sedan and wagon variants. The second-generation IS (codename XE20) was launched globally in 2005 with V6-powered IS 250 (GSE20) and IS 350 (GSE21) sedan models, followed by a high-performance V8 sedan version, the IS F, in 2007, and coupé convertible versions, the IS 250 C and IS 350 C, in 2008. The third-generation Lexus IS premiered in January 2013 and includes the V6-powere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercharger
In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a supercharger is a form of forced induction that is mechanically powered (usually by a belt from the engine's crankshaft), as opposed to a turbocharger, which is powered by the kinetic energy of the exhaust gasses. However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. The first supercharged engine was built in 1878, with usage in aircraft engines beginning in the 1910s and usage in car engines beginning in the 1920s. In piston engines used by aircraft, supercharging was often used to compensate for the lower air density at high altitudes. Supercharging is less commonly used in the 21st century, as manufacturers have shifted to turbochargers to reduce fuel consumption and/or increase power outputs. Des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotus Exige
The Lotus Exige is a British two-door, two-seat sports car made by Lotus Cars since 2000. Originally a more-hardcore coupé version of the Lotus Elise roadster, since the Series 3 the Exige has been the larger-engined model of the family - using a V6 engine in place of the Elise's Straight-four engine, straight-four with convertible versions of both available. Series 1 The original Exige was launched in 2000 with a naturally aspirated 1.8 L Rover K engine, Rover K Series I4 engine, Inline-four engine in VHPD (Very High Performance Derivative) tune. It is rated at at 7,800 rpm in standard form. There was also a "track spec" version with available. The car has a five-speed manual gearbox, and a claimed top speed of . 0–97 km/h (60 mph) was achieved in 4.7 seconds and 0–100 km/h (62 mph) in 4.9 seconds. The first generation Exige bodywork was based on that of the Series 1 Elise, which was produced from 1996-2000, although the Elise was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotus Elise
The Lotus Elise is a two-seat, rear-wheel drive, mid-engined roadster conceived in early 1994 and released in September 1996 by the British manufacturer Lotus Cars. The Elise has a fibreglass body shell atop its bonded extruded aluminium chassis that provides a rigid platform for the suspension, while keeping weight and production costs to a minimum. It is capable of speeds up to . The Elise was named after Elisa Artioli, the granddaughter of Romano Artioli who was chairman of Lotus and Bugatti at the time of the car's launch. Production of the Elise, Exige and Evora ended in 2021, to be replaced by a new family of models. Series 1 The 1996 Lotus Elise weighed . Because of this low weight, it was able to accelerate 0- in 5.8 seconds despite its relatively low power output of . Braking and fuel consumption are also improved by the car's reduced weight. Cornering is helped by a low center of gravity height of 470 mm (18½"). Series 1 was designed by Julian Thomson, then ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontiac Vibe
The Pontiac Vibe is a compact car that was sold by Pontiac from 2002 to 2010. It was jointly developed by General Motors along with Toyota, who manufactures the mechanically similar Toyota Matrix. Manufactured by the Toyota-GM joint venture NUMMI in Fremont, California, the Vibe succeeded the Chevrolet Prizm in production at NUMMI and like the Prizm, it was derived from the Toyota Corolla, making it the last of the GM and Toyota developed S-body cars. From 2002 to 2004, a rebadged right-hand drive variant of the Vibe was exported as the Toyota Voltz to the Japanese domestic market. The Voltz was not popular in Japan and was discontinued after two model years. Production of the Vibe ended in 2009 with the discontinuation of the Pontiac brand and the closing of NUMMI under the General Motors Chapter 11 reorganization. Its twin, the Toyota Matrix, was in production for another three years for the American market and four years for the Canadian market, as the Matrix was manufactured ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyota Matrix
The Toyota Matrix, officially referred to as the Toyota Corolla Matrix, is a compact hatchback manufactured by Toyota Motor Manufacturing Canada in Cambridge, Ontario and derived from the Corolla. Introduced in 2002 as a 2003 model, the Matrix was the result of a joint venture between Toyota and General Motors, with the GM version being the Pontiac Vibe, which was assembled by New United Motor Manufacturing, Inc. (NUMMI) in Fremont, California, United States. The Matrix was positioned as a sporty hatchback counterpart of the North American Corolla and was counted as a variant of it in Toyota's sales figures. Although identical mechanically, and nearly as much internally, the Matrix and Vibe had different sheetmetal and exterior trim designed by their respective brands. Both vehicles are narrow, tall station wagons styled in a quasi-SUV fashion (called a crossover utility vehicle or "CUV" by Toyota) and marketed to a fairly youthful market segment. First sold in February 2002, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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