2011 Fiat Uno

2011 Fiat Uno

Engine Picture Information

Submitted on: 09 Nov 10

Make: Fiat

Engine Description:

The new Fire 1.4 engine has a lot in common with the 1.0 engine. Manifold in plastic, camshaft bearing covers, cooling system, aluminum valve lids, automatic distribution belt tensioner and control center, among others, are the same for both. However, it also brings other technologies, such as:

CVCP (Continuously Variable Cam Phaser). Capable of reducing consumption by up to 5%, the new distribution system enables phase variation between the valve camshaft and crankshaft of up to 40°, continuously. This component enables to use the camshaft phase ideal for each engine operation regime, optimizing the torque in low speeds and power in high speeds.

Suction and discharge ducts and new combustion chamber. All of them were conceived to work in conjunction with the CVCP system. These structures maximize turbulence in the combustion chamber, increasing the engine’s tolerance to operation with high doses of exhaust gas recirculation (EGR). Its special design uses both channels and the combustion chamber to form a swirl in the same direction – which increases the turbulence and, consequently, the fuel burning efficiency. Additionally, the combustion chamber and the piston top direct the mix to the spark plug especially designed with longer electrodes, contributing to increase the efficiency of the entire system.

Sequential phased coil. It has four separate coils in a single body, enabling the sequential ignition – not of the lost spark type, more common in engines with low cylinder capacity. This increases the efficiency of the CVCP system.

Engine block. Its water jacket of the U Circulation type ensures seamless cooling of all cylinders. It is the same system adopted on the modern engine Fire 1.4 16V T-Jet. The thermostat has an integrated temperature sensor.

Magneti Marelli 7G Center. Last generation, it offers larger memory and processing capacity. Its gauging privileges fuel savings.

The new Fire 1.4 Evo engine produces maximum power of 85 HP and torque of 12.4 kgf/m at 3,500 rpm, running only with gasoline. Using solely alcohol, its power is of 88 HP and its torque, 12.5 kgf/m at 3,500 rpm.

Using only gasoline, the new Fire 1.0 Evo engine generates maximum power of 73 HP and maximum torque of 9.5 kgf/m at 3,850 rpm. With alcohol, the power is of 75 HP and its torque achieves 9.9 kgf/m at 3,850 rpm.

When driving the new Fiat Uno, the consumer will notice the low level of noises and vibrations from the engine. This occurs because the model has adopted the barycentric suspension – the engine is installed on two lateral fastening points aligned with its center of gravity, while a third fastening point has the sole function of restricting the engine movement.

Coupled to the new engines, the five-gear mechanical transmission was scaled with ratios adequate to the Brazilian consumer’s taste and makes the new Fiat Uno able to face our irregular roads bravely and safely.

Low consumption: In addition to the new Fire 1.0 Evo and 1.4

Evo engines, Fiat’s engineering department has invested in other technologies to ensure better fuel consumption. For this purpose, it conducted an important work in the car aerodynamics and weight control, achieving the lowest density in the segment. Such a good result was added to the green tires with low resistance to rolling, where the last-generation polymers used, along with a 5% reduction on the tire weight, generate lower resistance to rolling, ensuring better performance with fuel saving. With all this, the new Uno has excellent fuel consumption. For example: the Vivace version equipped with Fire 1.0 Evo engine consumes 15.6 km/l (gasoline) and 10.5 km/l (alcohol) in the city, and 20.1 km/l (gasoline) and 12.9 km/l (alcohol) on the road. The Fire 1.4 Evo engine equips the Attractive version, which has the following fuel consumption figures: 14.7 km/l (gasoline) and 10.3 km/l (alcohol) in the city; 19.4 km/l (gasoline) and 12.8 km/l (alcohol) on the road.


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