According to Volvo, the new petrol engine, 2.0 GTDi produces no less than 203hp despite its compact size and cylinder capacity. It pumps out 300Nm of torque already from 1750rpm.
The turbocharger system has been developed in co-operation between Volvo Cars, Borg-Warner Turbo System and steel component manufacturer, Benteler Automotive. The turbo gives efficient performance properties and also improves exhaust aftertreatment by enabling quick heating of the catalyst, said the company.
The new engine features direct injection. The injectors have seven holes for precisely controlled injection into each cylinder and are side-mounted. Direct injection gives a high fill rate in combustion chamber, efficient combustion and low emissions.
The GTDi engine utilises twin VVT (Variable Valve Timing) for both camshafts. Both inlet and exhaust valves' opening times can be varied to optimise overlap and ensure correct fill rate in combustion chamber, irrespective of engine revs. The engine will be offered in combination with Volvo's automatic six-speed powershift transmission or a six-speed manual gearbox.
Magnus Jonsson, head of product development at Volvo Cars, said: "We've succeeded in making a four-cylinder engine that is as powerful as a 2.5-litre five-cylinder unit, and it's also much more energy-efficient. This is a very welcome both for those customers who want high performance as well as supreme driveability and for the environment that benefits from the improved fuel efficiency. One of the most important reasons behind the results is our new, patented turbo system that has been tailor-made for smaller energy-efficient engines."
The Volvo's new 2.0 GTDi engine is being initially launched on markets, which offer tax incentives for engines below two litres in displacement, including South-East Asia, the Netherlands, China and Japan.