Audi Japan added with the new engine "A3 Sportback 1.8TFSI" in the small car "A3 Sportback" in and on April 25, 2007 listing. Vehicle price of 3.48 million yen.
1.8L turbo engine with supercharging, replacing the original 2.0L displacement naturally aspirated engine. Made from gray cast iron cylinder block, weighs 33kg. The crude crank shaft through the bearing having a diameter of 58mm combined with a reduced noise. audi 1.8 turbocharger The same way as the original gasoline direct injection.
Cylinder bore spacing is 88mm, cylinder bore diameter of 82.5mm, with the same naturally aspirated engine. Shortening the stroke from 92.8mm to 84.1mm, reduce emissions 186mL. Emissions reduction portion had given partially offset, the maximum output power is increased 8kW, maximum torque increased 50N • m. 10 • 15 mode fuel efficiency improvement of about 3% higher than 2.0L naturally aspirated engine 12.6km / L, up to 13.0km / L.
The maximum pressure of 150bar in the high-pressure fuel pump by installing overhead cam 4 on the exhaust camshaft is driven. 6 extends from the fuel pump to the injector pipe holes are made of stainless steel. After the intake stroke and the compression stroke after the injection, by optimizing the allocation of two-stroke so that a uniform gas mixture, thereby cooling the catalyst was heated to speed up the start-up state.
Turbochargers used by the US Borg Warner's "K03". audi a4 quattro turbocharger By changing the variable nozzle airfoil design, expanding the effective speed range torque generated. Can produce the maximum output power of 118kW at 5000 ~ 6000rpm, maximum torque of 250N • m produced in 1500 ~ 4200rpm.
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