Peugeot, whose parent company last week unveiled its latest diesel-electric hybrid prototype, has announced another production HDi-branded turbodiesel.
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The French automaker’s 407 range will soon be available with the new 170bhp 2.2-litre engine – claimed to be the first four-cylinder engine to use twin turbochargers, managed by a parallel sequential induction system.
This latest 2.2-litre HDi is an evolution of the existing 2.2 DW12 TED4 engine. It is the fourth phase of the cooperation between PSA Peugeot Citroën and Ford initiated in 1998.
The twin turbocharged engine, with 16 vales, twin camshafts, parallel sequential induction system and Bosch piezoelectric injectors, is claimed to provide unrivalled levels of power and responsiveness, even at low engine speeds.
The first low inertia turbo operates up to 2,700rpm, and gives an immediate response to throttle input. As the revs rise, the second, smaller turbo kicks in seamlessly to give enhanced performance throughout the rest of the rev range.
The new HDi170 is fully compliant with Euro 4 regulations, produces a maximum torque output of 277lb ft at only 1,500rpm and is mated to a six-speed manual transmission.
In the UK, the new engine will be available in 407 Sport derivatives.
