display on the Alfa Romeo stand in Geneva, two cars
show-case the all new Alfa Romeo ‘HF’ V6 engine for the
first time publicly.
A product of the recently terminated Fiat-GM Powertrain
joint venture, the new 3.2 litre V6 engine is built in
Melbourne, Australia, alongside variants for various GM
marques, and is supplied to Italy as a complete assembly to
be fitted to cars on the production line.
V6 engine has been welcomed with mixed emotions by Alfa
Romeo enthusiasts, despite the engine not yet having been
trialed by the media.
from members who have driven the new Alfa Romeo 159 and
Brera models fitted with the engine have, however, relayed a
very positive note, expressing that the cars were
characterized with ‘impressive performance and
smoothness’. The engine is uniquely different from any of
the other variants of the GM V6 engine range, and can be
described as a true Alfa Romeo gem, with the majority of
components having been redesigned around the bare block.
described by the leader behind the technical development
centre at Alfa Romeo, Paulo Massai, the block itself can be
regarded as an “insensitive and inanimate piece of metal”,
with the features that determine the true soul of the engine
having been fully engineered from the ground up.
Skepticisms about the GM connotations of this engine should
thus be swept under the carpet, as the engine features a
brand new cylinder head, new liners, pistons, manifolds and
injection system, to name but a few of the changes.
The so-called Twin Phaser engine uses the
second-generation lean burn, direct fuel injection
JTS system that was pioneered on the 2.0-lire 4-cyl
JTS engine in the Alfa 156
Alfa 159: the engine is uniquely different from any
of the other variants of the GM V6 engine range, and
can be described as a true Alfa Romeo gem, with the
majority of components having been redesigned around
the bare block
One of the issues closest to the heart of Alfisti will be
how this new engine sounds, with the original Arese built V6
playing an almost trademark soundtrack. Alfa Romeo engineers
worked day and night with the quest to achieve an engine
note worthy of the Alfa Romeo V6 badge, and the presence of
a twin tail-pipe exhaust system will certainly complement
The so-called Twin Phaser engine uses the second-generation
lean burn, direct fuel injection JTS system that was
pioneered on the 2.0 litre 4-pot JTS engine in the
successful Alfa Romeo 156. Reduced to practical figures,
this technical jargon signifies that the new V6 engine will
be 40% more economical, and produce 22 Nm more torque than
the original Alfa Romeo V6 engine that it is replacing.
Power output has now increased to 260 bhp.
Compared to the
Arese V6, which was appreciated for
delivering generous mid-range grunt, the new 3.2 V6 has an
almost unit bore-to-stroke ratio, which allows for 88% of
torque to be available from 2000 rpm. In combination with
the third generation all-wheel-drive Torson C system, the
Alfa Romeo 159 and Brera V6 models will feature exuberant
temperament, with little effort being required.
All of these improvements have to be summed up against
critique, however, and in the case of the new V6 engine this
comes in the form of under-bonnet looks. The original Alfa
Romeo V6 was, quite simply put, a work of art. In the case
of the new V6 engine though, the looks are not worth writing
A future variant of the new V6 engine
worth keeping an eye out for is the twin-turbo GTA model,
which will feature the brand new UNIAIR variable valve
technology, and boast a power output of 405 bhp and 680 Nm