Engine & Gearbox

The Alfa 147 GTA power unit is the same 3.2 V6 24 valve engine fitted to the Alfa 156 and Alfa Sportwagon GTA. It is a spirited, well-rounded engine as befits a six-cylinder unit and is derived from the now classic three-litre V6 24 valve unit fitted to top of the range Alfa 166 models.

The Alfa 147 GTA engine differs from its predecessor in certain respects. First and foremost, power has been increased by making radical mechanical changes. The power could simply have been increased by adjusting the timing, fuel system and electronics. But instead the engineers changed the crankshaft and pistons on the GTA to increase the cylinder capacity to 3.2 litres and lengthened the stroke to 78 millimetres. This was done with one very specific aim: to ensure absolute performance and high power and torque peaks combined with smooth, gradual delivery from low speeds. For this reason, the 3.2 V6 24v unit can deliver thrilling performance - and that means a top speed of 246 kmh and 0 to 100 kmh in 6.3 seconds - but can also be used as an everyday car.

The self-confessed goal of the GTA is this: To offer sensations unique to a racing car yet still be perfectly serviceable for everyday use.

The 3.2 V6 24v unit fitted to the Alfa 147 GTA develops 184 kW at 6200 rpm with a maximum torque of 300 Nm at 4800 rpm. These figures are all it takes to achieve exciting performances and are complemented by a torque curve that permits high values at low speeds. The car can also travel in sixth gear at less than 2000 rpm and unleash speed spurts without changing gear. Extremely satisfying behaviour, therefore, even during daily use.

The increased cylinder capacity naturally required further changes. For example, the control unit software has been rewritten, the cooling system has been upgraded with the addition of an engine oil radiator - and the intake and exhaust ports have been tuned by applying a new timing pattern.

The 3.2 V6 24 valve unit fitted on the Alfa 147 GTA already meets the tough Euro 4 emission limits.

The transmission has also been reinforced: the half-axles are new, while the clutch is bigger and the six-speed gearbox offers new, sturdier components.

Specifications are subject to change without notice.