VW Golf TSI BlueMotion, 3-cylinder efficiency standards – ANSA.it

(Alessandro Go)

AMSTERDAM – In the vast sea of ​​acronyms used by car manufacturers, the word ‘BlueMotion’ distinguishes the Volkswagen that pollute and consume less.

The Golf TSI BlueMotion we tested the international press presentation of Amsterdam is the first gasoline model that can boast of this title, the preserve, so far, only the diesel engines. The credit goes to 1.0 3-cylinder turbocharged torque master of efficiency that allows it to declare emissions of 99 g / km and an average fuel consumption in the combined cycle of 4.3 L / 100 km. In Italy it will arrive in July in a single set-up, with the five-door with automatic transmission 7-speed DSG, at a list price of 24,700 Euros. This means that it costs more both of the 4-cylinder 1.2 and 1.4 TSI in preparation corresponding, but the price differential is justified by technological features which reduce its thirst for gasoline. In this regard, the Golf BlueMotion is certainly not lazy car. Indeed, the small 3-cylinder engine delivers 115 hp well from 5,000 to 5,500 rpm and 200 Nm of torque at 2,000 rpm. So the compact Wolfsburg can easily exceed 200 km / h to 100 km / h acceleration in less than 10 seconds (204 km / h and 9.7 s for accuracy.

But if most the merit of this mix between performance and fuel goes to the new engine, we must not forget the work done by German engineers aerodynamics. The Cd – drag coefficient – it is only 0.28, a value obtained thanks to their low stance of 15 mm, to the calender almost completely faired and the lower air intake activates that opens and closes according to the cooling needs. The Golf BlueMotion, therefore, is a champion of fluidity, so that at constant speed the only noise that is perceived is the tire rolling.

Coming back, however, the 1.0 TSI which is the real highlight of this Volkswagen, one can not help but be admired the technical solutions which sports. Meanwhile, , the construction completely in aluminum reduces their weight in only 89 kg, while the careful choice of materials for the internal organs has permission to do less of the balancing shaft, a concession really rare for a 3-cylinder. Then, thermal management is really painstaking, with the exhaust manifold integrated into the cylinder head and a double separate cooling circuit for the top and bottom of the engine, in addition to the one dedicated to the intercooler.

Finally, the combustion is controlled very precisely by individual injectors 5 hole placing the fuel in the combustion chamber to 250 bar, while the turbine has a maximum boost pressure of 1.6 bar. Behind the wheel all this fades into the background, because the behavior of the engine is so fluid and smooth that you will be impressed and you forget to ask how it is possible. The response to the gas pedal comes already at 1,600 rpm and the draw length stops only to the 6,000 rpm. Throughout this period of operation, the Golf BlueMotion always shows a substantial delivery and attentive, while the automatic gearbox DSG is concerned to select the relationship longer to reduce consumption. So the little 3-cylinder ” turns ” always between 1,600 and 2,000 rpm, with a velocity accumulating fluid specimen.