Compared to the 1.6-liter turbo it replaces, combined cycle fuel consumption and CO2 emissions have been cut by up to 15 percent, while torque is increased by 22 percent. As a result, this engine sets a new benchmark, delivering 12 percent more torque than its closest competitors in compact models with power outputs of 150 - 180 hp, including engines from German premium brands.
Key to its impressive performance are: the introduction of direct fuel injection for improved combustion, a fast-acting turbocharging system for strong pulling power from low engine speeds and a series of ‘sound engineering’ measures to ensure quiet, smooth running.
As an example of its impressive pulling power, the 1.6 SIDI Turbo propels the Astra five-door hatchback and sedan models from 80 to 120 km/h in fifth gear in just 8.8 seconds, almost two seconds faster than their 1.6 turbo predecessors. And with Start/Stop and a six-speed manual transmission, both models return NEDC (New European Driving Cycle) combined cycle fuel consumption of just 5.9 l/100 km with 139 g/km CO2 – a 14 percent improvement. For the GTC, the gain is even greater at 15 percent.