The engine was developed paying particular attention to performance and consumption, areas in which the Fiat Punto leads its category. This is achieved as a result of the volumetric efficiency, which has been optimised throughout the operating range, thanks to careful fluid dynamic development of the entire inlet system and the timing. The result is a power output of 57 kW (77 bhp) at 6000 rpm and a peak torque of 11.7 kgm (115 Nm) at 3000 rpm. With this engine, the Fiat Punto has a top speed of 165 km/h, and accelerates from 0 to 100 km/h in 13.2 seconds. Consumption figures are among the best in this segment: 7.7 l/100 km in the urban cycle, 5.2 l/100 km out of town, and 6.1 l/100 km in the mixed cycle.


An engine that is both brilliant and sparing on fuel. This performance is helped by the adoption of an electronic throttle valve control system known as 'drive by wire', and in particular by the use of a new high turbulence combustion chamber which is combined with continuous variable valve timing, governed by the control unit. This innovative system allows a significant part (about 25%) of the exhaust gases to be recirculated in the combustion chamber, significantly reducing fuel consumption and exhaust emissions when driving with a partial load. Last but not least, like the 1.2 8v, this engine also features a number of changes designed to reduce consumption. For example, the timing components are lighter and the valve springs are of the low load type to reduce friction.


Another feature of the new 77 bhp 1.4 is the higher compression ratio (11:1) and the high torque delivery at low speeds, features that have made it possible to lower fuel consumption. This target was also achieved by the calibration of the latest generation engine control system, which managed to reduce consumption further, compatibly with the demand for handling, performance and low emissions. In the latter field, we should underline that the 77 bhp 1.4 Fire engine also respects Euro 4 standards, thanks to a catalytic converter positioned in the engine bay (welded onto the exhaust manifold flange using a new technology), and it reaches a high temperature very rapidly, cutting emissions even while the engine is heating up. The equipment on the new car to reduce its environmental impact includes a returnless fuel supply system, which eliminates the recirculation of fuel inside the tank and reduces the formation of fumes.

High performance, low consumption and cleanliness: the 77 bhp 1.4 combines these winning features with excellent acoustic comfort. In addition to the technical improvements described for the 1.2 Fire engine, this engine also features a flexible flywheel that reduces the vibration transmitted from the engine to the bodyshell.


Reliable, sophisticated gearboxes

A range of reliable, strong, sophisticated gearboxes was developed to match the engines available on the Grande Punto, and these components are an important aspect of enjoyment and comfort (robotised Dualogic gearboxes will also be available after the launch).

A new dual hose control was developed for all the gearboxes, to insulate vibration, guaranteeing more precise manoeuvring and quieter operation. It is a new generation, technologically advanced device, which uses high performance technopolymers extensively, on the basis of the different resistance, weight and self-lubricating characteristics. Plus the fact that bench testing in extreme climate conditions has helped to refine materials, couplings and processes, guaranteeing the utmost sturdiness and reliability of the product. What is more, the quality and reliability of these components is guaranteed by the painstaking care that goes into their assembly, during which all the components are pre-tested and all the 'values' that define efficiency, elasticity and tolerances are measured electronically.

All versions adopt the hydraulic clutch disengagement control, with an external actuator on the 1.2 and 1.4 Fire and 1.3 Multijet engines, and a coaxial clutch release mechanism (CSC) on the 1.9 Multijet. The device, which has no external actuation components, increases the efficiency of the system throughout the life of the car and also insulates the noise and vibration coming from the engine.

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