Technical data

26
297x198_Elba_09_Bild_26 26 15.12.2009 13:13:49 Uhr
V8 engine with a displacement of 4,163 cc
Maximum output 331 kW at 8,250 rpm
Maximum torque 430 Nm at 4,000 – 6,000 rpm
Power density of 79.5 kW/l
High-rev concept to max. 8,500 rpm
FSI direct injection operating at up to 120 bar
HDZ.
What is
the quickest way
to express
performance?
V8 FSI engine
RS5_18_2010_09.indd 26 17.08.2010 16:57:06
297x198_Elba_09_Bild_27 27 15.12.2009 11:58:39 Uhr
From the first moment you start the engine you
will feel the power that’s behind the Audi RS 5.
It is generated by the 4.2 litre V8 FSI engine*. It
uses the FSI® direct petrol injection technology
which we have been able to transfer from the
race track to the road and works with our proven
high-rev concept (HRC).
In FSI technology, the fuel is injected directly
into the combustion chamber where it is then
highly compressed. This creates a very uniform
fuel/air mixture, resulting in very efficient
combustion and consequently in improved power
delivery and power yield. In addition, direct
fuel injection cools the combustion chambers
so that engine compression can be increased,
bringing advantages in both output and
torque.
One other element responsible for the irresistible
power of the RS 5 is the high-rev concept.
It gives you a higher output per litre of displace-
ment combined with smooth power delivery over
the entire speed range. The extremely agile and
lively power unit responds immediately, whilst
also delivering a rich, satisfying sound.
The high-performance engine in the Audi RS 5
permits engine speeds of up to 8,500 rpm.
Its maximum torque of 430 Nm is reached at
between 4,000 and 6,000 rpm, although at least
90% of the power is available over a broad speed
range of 3,000 to 8,000 rpm. This allows the
RS 5 to sprint from 0 to 100 km/h in just 4.6 sec-
onds – and then effortlessly onwards to the
200 km/h mark in a further 10.9 seconds.
* The values of fuel consumption and CO₂ emissions are on Page 52.
The high-rev concept (HRC) in brief:
The agile and free-revving engine has
a very wide speed range accentuated
by an impressive engine note. It is
characterised by high performance
yield and smooth power delivery.
Engine performance curve V8 FSI
Power output, kW
Torque, Nm
Power output
Torque
360
320
280
240
200
160
120
80
40
0
540
480
420
360
300
240
180
120
60
0
Engine speed in rpm
10000 2000 3000 4000 5000 6000 7000 8000
9000
RS5_18_2010_09.indd 27 04.08.2010 09:32:44