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Showing results for tags 'cylinder deactivation'.
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After making its debut in the MK 7 Golf Sport, VW's new 1.4 TSI with cylinder deactivation has found its way into the hoods of the Audi A1 and A3. The primary goal of the system is to reduce fuel consumption significantly by temporarily shutting off two of the four cylinders during low to mid loads. The greatest benefits are realised while driving at constant moderate speeds. The 1.4-litre unit is also fitted with a start-stop system. The 1.4-litre engine pumps out 138bhp at 5,000 rpm and 250Nm of torque between 1,500 and 3,500 rpm. Installed in the Audi A1, the mini hatchback with S-tronic goes from 0 to 100km/h in 7.9 seconds while the Sportback version takes just 0.1 second longer. For the Audi A3 and A3 Sportback, the century sprint takes 8.3 seconds and 8.4 seconds respectively. Looking at how the new engine replaces the 'Twincharger' in the Golf Sport, it won't come as a surprise if the same thing happens for the A1 S-Line. Volkswagen is the first carmaker to implement cylinder deactivation technology in a turbocharged four-cylinder engine in large-scale production.
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[extract] Lamborghini has made their latest bull, the Aventador, more environmentally friendly by incorporating start/stop function and cylinder deactivation technology into the 2013 MY LP 700-4. Hence, the revised Aventador is akin to a plate of Char Kway Teow prepared with healthier oil
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With all the hype on the internet regarding the all-new 2013 VW Golf, Volkswagen had a media presentation in Germany to highlight the important features of the brand's vital new model. Unfortunately, we are still unable to have a good gauge of how the new car will look like after the presentation as only the body structure was showed. But judging from the body structure, one can guess that the MK 7 will generally retain the shape of its predecessor. Despite being larger and roomier than the outgoing model, the new Golf will shed about 100kg. In addition, VW says that fuel consumption and emissions are reduced by up to 23%. Hence, let
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Volkswagen will debut cylinder deactivation (cylinder shut-off) technology in the new 1.4-liter TSI turbocharged, direct-injection engine beginning in 2012. Volkswagen will be the first carmaker to implement this technology in a turbocharged four-cylinder engine in large-scale production. The primary goal of the system is to reduce significantly fuel consumption by temporarily shutting off two of the four cylinders (cylinders 2 and 3) during low to mid loads, effectively making it similar to the Fiat 500 TwinAir 2 cylinder engine. Volkswagen says that cylinder shut-off reduces fuel consumption of the 1.4 TSI by 0.4 liter per 100 km in the NEDC (New European Driving Cycle) driving cycle. When the Stop/Start functionality is integrated, which deactivates the engine in neutral gear, the savings effect adds up to about 0.6 liter per 100 km. The greatest benefits of the technology are realized while driving at constant moderate speeds. At 50 km/h, in third or fourth gear, savings amount to nearly one liter per 100 km. Even when running on two cylinders, the 1.4 TSI
