Suzuki makes a Swift move to improve fuel economy and reduce emissionsSep 10, 2014
Suzuki GB PLC is introducing a new engine for its ever popular Swift model. Planned for introduction early next year, the new 1.2-litre petrol unit incorporates Suzuki’s latest technology that utilises twin fuel injectors for improved fuel economy.
The new technology, known as Dualjet, has resulted in Swift attaining 65.7mpg on the EC Combined fuel consumption cycle, representing an impressive 9.2mpg or 16 per cent improvement over the current petrol engine. Another benefit of Dualjet technology is reduced CO2 emissions of 99g/km, meaning that Swift models with this engine are now exempt from VED (Vehicle Excise Duty) charges. Even fewer trips to the fuel pumps and zero VED will equate to a saving of up to £175 per year for an average mileage owner.
Utilising Dualjet technology that positions the fuel injectors very close to the engine inlet valves allows for a finer fuel atomisation (or mixture) which in turn provides a more effective transfer into the cylinder. Internal modifications to the engine include the use of a new type of inlet port and combustion chamber with other mechanical parts also modified to reduce frictional losses and facilitate smoother running.
The piston crowns have also been modified with a slight bowl shape to achieve higher air turbulence inside the cylinder, and the pistons have cooling oil jets to help reduce internal temperatures. Additionally, a new type of Exhaust Gas Recirculation (EGR) system is used which helps avoid abnormal combustion or ‘knocking’. These modifications have resulted in a higher compression ratio of 12.0:1 versus 11.0:1 for the current engine.
The maximum power output is 90PS versus 94PS for the current petrol engine with a slightly increased torque figure of 120Nm at 4,400rpm versus 118Nm at 4,800rpm. Other modifications include slight alterations to gear ratios for greater flexibility on the road, and the addition of Engine Auto Stop Start (EASS).
The new Dualjet technology for Swift will initially be available as an optional engine choice on SZ4 two wheel drive models and final prices will be confirmed closer to introduction.
Global sales of Swift have now passed the four million mark since launch in 2004 – eighteen months after the celebration of three million units. Launched in the UK in May 2005; more than 90,000 Swifts have been sold and now account for around 30 per cent of the UK sales mix.