The Chrysler Delta benefits from Fiat Powertrain Technologies' (FPT) experience of designing, developing and building small, yet highly efficient and powerful award winning engines. Whichever one of the two petrol and two diesel engines buyers choose, they can be sure of optimum fuel economy and impressive torque.
1.4 litre Turbo-Jet − Petrol
Giving a combination of sporty refinement and great value, and developed as part of the FIRE (Fully Integrated and Robotised Engine) range of engines, this power unit guarantees the best possible performance for the lowest possible fuel consumption (44.8mph Combined Cycle), and a 2 year/18,000 mile service interval helps to make this a highly economical choice.
1.4 litre MultiAir
The second engine in the Delta range is a more powerful 140bhp 1.4 litre petrol which utilises FPT's award-winning MultiAir technology.
MultiAir technology works by allowing the direct metering of air stroke-by-stroke, cylinder-by-cylinder through the intake valves without using the throttle. The benefits of this technology are wide ranging: - maximum power is increased by up to 10% because of the adoption of a power-orientated mechanical camshaft profile; and low-end torque is improved by up to 15% through early intake valve closing strategies that allow maximisation of air mass in the cylinder. By eliminating pumping losses, a 10% reduction of fuel consumption and CO2 emissions is achieved over naturally aspirated and turobcharged engines not using MultiAir technology. Optimised valve control strategies during warm-up and internal Exhaust Gas Recirculation (iEGR, which is realised by re-opening the intake valves during the exhaust stroke) mean that substantial HC/CO and NOX reductions can also be achieved.
MultiAir technology combines to allow this engine to exceed the excellent MPG of the 1.4 Turbo-Jet, achieving 49.6mpg (Combined) with significantly higher BHP and torque figures.
1.6 MultiJet 120bhp
The first diesel engine in the Chrysler Delta range is a 120bhp FPT developed MultiJet available to customers purchasing Delta SE and SR versions, with a 6 speed semi-automatic transmission available on SE versions.
MultiJet is another ground-breaking development from FPT which in this latest guise allows eight injections per combustion cycle. This is possible due to the new MultiJet II injector patented by FPT, and integrated into the ECU by Magneti Marelli. The shutter in the injector is hydraulically balanced, which allows a larger sealing diameter, with reduced shutter strokes. This servovalve allows fuel quantities to be injected into the combustion chamber quicker, and with greater accuracy.
The shutter stroke has been reduced to 20µm (microns), which has allowed the interval between two consecutive injections to be dramatically reduced. This allows the injection rate to be modulated, to achieve greater combustion process control. This new injection mode is called Injection Rate Shaping. The results are reduced noise, fuel consumption of 60.1mpg (Combined) and reduced pollutant emissions.
When a customer chooses the semi-automatic transmission, the benefits of MultiJet technology are amplified, with 61.4mpg (Combined) and 120g/km CO2.
2.0 MultiJet 165bhp
The most powerful engine in the Delta range is available exclusively on the Delta Limited. Customers can thus enjoy the most luxurious trim level with the most appropriate engine.
The 2.0 MultiJet features all of the MultiJet technology available on the 1.6, but in a more potent package, offering 165bhp and 360Nm of torque. Economy figures are still impressive at 55.4mpg (Combined) with CO2 emissions at 135g/km.
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