Porsche PANAMERA 4S -, Брошюра

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The exhaust system of the
Panamera Turbo switches
between two configurations
automatically: low noise at low
engine speeds, and increased
throughput at high revs under
maximum engine load.
Sports exhaust system.
An optional sports exhaust sys-
tem is available for all Panamera
models. Activated by a separate
button, it produces an even
more authentic sportscar sound.
Lightweight exhaust system.
The exhaust system is made from
selected longlife stainless steel.
The powerful primary and main
catalytic converters heat up
rapidly for effective emissions
control. Four lambda sensors
supply a continuous stream
of information about the com-
position of the exhaust gas to
the electronic engine manage-
ment system, which responds
by altering the fuel/air ratio as
required. As a result, the system
is well equipped to meet or
even exceed the demands of
global emission standards. The
Panamera S and Panamera 4S
comply with both Euro 5 in
Europe and ULEV in the USA,
and the Panamera Turbo with
Euro 5 and LEV.
Exhaust turbocharging.
The new Panamera Turbo has
two turbochargers arranged in
parallel. Intake air reaches the
turbochargers through a common
air-cleaner housing. Once com-
pressed, it is fed to the engine via
two charge-air coolers, one for
each cylinder bank. Cooling of the
compressed air has two positive
outcomes: high cylinder charge
and low component tempera-
tures. Under full load, the boost
pressure depends on the current
engine speed and a maximum
pressure of 0.85 bar is achieved
at 2,500 rpm at sea level.
With the optional Sport Chrono
Package Turbo, the boost
pressure produced at full throttle
in the 2,000 rpm to 5,000 rpm
range is temporarily increased
by up to 10% by the ‘overboost’
function.
Panamera 4S with sports exhaust system
Performance | Engine
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