Fiat debuts new two cylinder “twin air” for 500
The Fiat Powertrain Technologies company in Bielsko-Biala, southern Poland, has launched the production of 0.9-litre Twin Air engines for Fiat’s 500 model.The Power Train factory will produce some 450,000 new engines a year.
the 500 will be the first Fiat model to adopt this, which will be the progenitor of a new family of engines: a 85 HP (900 cc) turbo two-cylinder with the lowest CO2 emission for a petrol engine (92 g/km with a Dualogic robotised gearbox and 95 g/km with manual gearbox)
Equipped in this way, the Fiat 500 reaches a top speed of 173 km/h and accelerates from 0 to 100 km/h in only 11 seconds. This remarkable performance corresponds to a significant reduction of fuel consumption and emissions: 4.1 l/100 km and 95 g/km respectively on the urban cycle (with manual gearbox), that becomes 4.0 l/100 km and 92 g/km with a Dualogic robotised gearbox. Furthermore, the Fiat 500 with TwinAir 85 HP is provided with an ECO button – positioned on the dashboard – for further cutting fuel consumption in cities and guaranteeing very eco-friendly running. Two driving modes can be selected: Normal and ECO
Furthermore, compared with a medium-sized four-cylinder of equal performance, the new engine is significantly shorter (-23%) and lighter (-10%)
Interestingly, the TwinAir 85 HP comes with “Start&Stop” as standard. This device temporarily stops the engine and restarts it, ensuring reductions in fuel consumption and noise in the passenger compartment. The Gear Shift Indicator (GSI) associated to the Start&Stop system is a genuine “co-pilot” that discreetly suggests when to shift gear, leading to more efficient use of the engine in terms of fuel consumption. For example, the GSI may suggest shifting up, by means of an indication on the control panel, to allow the engine to burn a leaner mixture, i.e. one containing less fuel, or shifting down to make best use of the available torque.
Nothing short of an engineering gem, the two-cylinder implements the revolutionary MultiAir technology developed and patented by FPT – Fiat Powertrain Technologies, which was introduced on FIRE engines last year for the first time. The heart of MultiAir is a new electro-hydraulic valve management system that reduces fuel consumption by controlling air directly via the inlet valves (without using the throttle). MultiAir reduces polluting emissions (thanks to combustion control) and also considerably improves performance by boosting driveability with respect to a traditional petrol engine of equal displacement.
source: Fiat
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