The new F1
engine – a 90 degree V10 – which will be used for the
forthcoming championship, fitted to the F2005 is called the
055.
To comply with
the new regulations, that stipulate the use of just one
engine per car for two races, engine life must once again be
doubled, compared with the previous year: we have thus moved
from 400 km in 2003 to 700 km last year and now our target
is 1400 km. Furthermore, it will be imperative to have
performance stability over the entire period of engine life
(as engine usage will run to the end of the second race.)
The 055 engine
began life as an evolution of its predecessor (called the
053.) A great deal of work in terms of design and
experimentation was and will be focussed as a priority, on
meeting and maintaining the necessary reliability for this
new mission profile. One has to taken into consideration
that for many of the engine’s internal parts, especially
those that move, the 1400 km range is a severe test that
conflicts with maintaining performance.
Therefore, most
of the engine components have been redesigned and
effectively optimised to meet the new targets. The engine
will be adapted in terms of “mapping” as a function of the
various requirements during the season (I mean for example,
the demands of various circuits that come up on the 2005 F1
calendar and the different weather conditions we can
expect.)
The 055 engine
design project had to meet the following technical demands:
• reliability extended to around 1400 km – as already
explained – while maintaining necessary levels of
performance and driveability;
• consolidating strong integration with the design of the
car, which has led to a functional optimisation of layout of
the engine and its accessories.
The 055 can only
be fitted to the new F2005 car.
As for its
structural characteristics: the block, heads and other minor
castings have been strengthened without any appreciable
increase in weight. All moving components are new to cope
with the extended life. The Marelli engine control unit has
also evolved to meet the 2005 requirements, with new
electronic components.
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