8-VALVE 1.4
ENGINE
FIAT PUNTO TRAINING OUTLINE
Fiat Auto S.p.A.
After Sales Training
4 8-valve 1.4 engine
4.1 General remarks
The development of the 8-valve 1.4 engine has caused the Fire 8V engine to be shifted to the
segment B vehicles and light commercial vehicles. This engine can be compared with the Fire
1.2 16V MPI as far as performance is concerned, with better consumption levels and cost-
efficiency.
The development of the 8-valve 1.4 engine has made it possible to cut down fuel consumption
by 6% (NED) through two actions:
the modification made to the valve train with smaller valve weight, and the introduction of low-
load valve springs – both of these improvements have reduced fuel consumption by 2%
(NEDC);
the use of the CVCP (continuous phase variator) on the 8V engines, which helped cutting
down fuel consumption by 4%.
The power and, above all, the low-speed torque of this engine enhance the elasticity features
of Fiat Punto, ensuring smooth driving and quick pick-up without having to shift down, with
very good consumption levels.
The introduction of the continuous phase variator and a new concept of variable-turbulence
combustion chamber have made it possible to significantly reduce fuel consumption and
exhaust emission, especially when driving in the city traffic and out of town.
The new combustion chamber (with a compression ratio of 11:0), combined with the new
intake and exhaust pipes, the new inlet manifold, and optimized valve gear timing, ensure
bright performance, low fuel consumption and emission levels. The 1.4 engine complies with
the Euro 4 regulatory standard.
Below are the main features of this new engine:
gb Fiat Grande Punto OK
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8-valve, 4-cylinder in-line OHC engine;
