At-a-glance
- Jaguar is introducing two additional forced-induction petrol
engines to its range for the 2013MY; the new 3.0-litre V6
Supercharged Petrol, and the four-cylinder 2.0-litre I4
Turbocharged Petrol. Their introduction will enhance customer
choice in key global markets
- The respective supercharging and turbocharging technology used
in each engine means they offer efficiently delivered high-specific
power and torque outputs
- The 3.0-litre V6 Supercharged Petrol (3.0 V6 S/C) draws on key
technology used in Jaguar's award-winning 5.0-litre V8, and has
significantly higher specific performance than the
naturally-aspirated version of that engine
- The 3.0 V6 S/C will be available in two states of tune:
380PS/460Nm and 340PS/450Nm
- In 380PS form, the 3.0 V6 S/C produces almost 127PS per litre -
the highest specific output of any Jaguar engine
- The 3.0 V6 S/C 380 will only be available in Jaguar's
forthcoming new sports car, the F-TYPE, the 340PS version will also
be offered in XF and XJ models
- The 2.0-litre I4 Ti 240 produces 240PS and 340Nm, offering
greater performance than Jaguar's existing naturally-aspirated
AJ-V6 engine, but with four-cylinder economy
- The 2.0-litre I4 Ti 240 will replace the 3.0-litre
naturally-aspirated petrol AJ-V6 in XF and XJ saloons
- Both engines deliver their power through smooth shifting
eight-speed automatic transmissions
- The 3.0 V6 S/C will be available with Jaguar's Intelligent
Stop-Start system
Introduction
As Jaguar expands its product offer in key global markets it is
introducing two additional petrol units to its range to enhance
customer choice; the new 3.0-litre V6 Supercharged Petrol, and the
2.0-litre I4 Turbocharged Petrol.
Adrian Hallmark, Global Brand Director, Jaguar Cars, said:
"Jaguar currently has its strongest range of products for several
decades. Our continued growth is dependent on two things;
activating the awareness of the brand, and expanding our range to
enable us to access new customers in both existing and emerging
markets. The introduction of these two additional forced-induction
petrol engines is integral to this ambitious plan."
The 3.0 V6 S/C petrol engine has been developed by Jaguar
powertrain experts from its existing award-winning 5.0-litre V8 -
the all-alloy engine which has received plaudits from around the
world in applications from long wheelbase limousines to 300km/h
convertibles. The 3.0 V6 S/C shares many of the V8's key
technologies including direct injection, variable valve timing, and
aluminium construction and offers comparable levels of refinement
and driveability to the naturally-aspirated version of the V8
engine, but with greater specific output and efficiency courtesy of
supercharging technology.
In its 340PS/450Nm guise the 3.0 V6 S/C offers the smooth,
seamless performance ideally suited to a Jaguar saloon while the
380PS/460Nm version offers the visceral thrill you'd expect for the
F-TYPE, the forthcoming new Jaguar sports car. In both states of
tune the 3.0 V6 S/C will give performance levels matching much
larger engines while remaining economy and emissions friendly.
The 2.0-litre I4 Turbocharged Petrol engine uses a range of
state-of-the-art technologies for power generation that belies its
size, and its introduction to XF and XJ models will see it
installed in north-south orientation. It produces 240PS and 340Nm
thanks to the use of three key innovations; low-inertia
turbocharging, direct fuel-injection and variable timing of both
the intake and exhaust camshafts.
Ron Lee, Group Chief Engineer Powertrain, Jaguar Cars, said:
"Both the 3.0 V6 S/C and 2.0 I4 Ti make intelligent use of
forced-induction technology to produce high-specific output in an
efficient way, while delivering the compelling combination of
flexibility, refinement and driver reward that are integral
attributes in all Jaguar engines."
Both engines will be mated to the eight-speed automatic gearbox
introduced on specific 2012 model year Jaguars which offers a broad
spread of ratios for a perfectly balanced combination of
smooth-shifting, economy and driver control. The 3.0 V6 S/C will
also be available with Jaguar's Intelligent Stop-Start system.
3.0-litre V6 Supercharged Petrol
Jaguar has established itself as a leader in the field of
supercharged induction technology in order to extract the highest
efficiency from its powerplants. Currently, supercharging is used
to greatest effect in the XKR-S which produces 550PS and 680Nm from
its acclaimed 5.0-litre V8 engine.
It is this same award-winning engine architecture which forms
the basis for Jaguar's new 3.0 V6 S/C and which helps it produce
higher specific outputs than even the astonishing XKR-S. The engine
will be presented in two states of tune depending on its
application; the 380PS/460Nm version will be used exclusively in
Jaguar's forthcoming new F-TYPE sports car while the 340PS/450Nm
version will also join the powertrain line-up for the XF and XJ
saloons.
The new quad-cam V6 shares its all-aluminium construction with
the V8, with the lightweight die-cast block supplemented with
cross-bolted main bearing caps to increase rigidity and therefore
refinement. The four-valve cylinder heads are constructed of
recycled aluminium.
The valves themselves are subject to control by a dual
independent variable cam timing (DIVCT) system which is activated
by the positive and negative torques generated by the movement of
the intake and exhaust valves. This variable timing system features
actuation rates of more than 150 degrees per second throughout the
rev range, to optimise power, torque and economy at all engine
speeds.
This responsive and uninterrupted power delivery is made
possible through the use of spray-guided direct injection (SGDI)
which delivers precisely measured quantities of fuel directly into
the centre of the combustion chambers at pressures of up to 150bar.
The fuel is delivered several times during each combustion cycle,
creating a more homogenous air-fuel mixture for cleaner and more
efficient combustion.
This is aided by an innovation new to this engine to maximise
combustion efficiency; spark plugs which are precisely oriented
both in relation to the injector and within the combustion chamber.
The compression ratio is also raised from 9.5:1 in the supercharged
V8 to 10.5:1, further improving fuel economy and reducing
emissions.
Mounted in the 'V' of the engine is latest-generation Roots-type
twin vortex supercharger, its use key to the 3.0 V6 S/C's
high-specific output and efficiency. More compact than the model
used with the V8, a water-cooled intercooler reduces the
temperature of the intake air to optimise power and efficiency. New
to the 3.0 V6 S/C is that the supercharger boost control is
electronically supervised by new Bosch engine management software,
offering efficiency gains of up to 20 per cent.
The inherent engineering integrity of the 3.0 V6 S/C's design
meant that no alterations to the hardware or ancillaries were
necessary in achieving the additional power and torque of the
higher-output variant for the F-TYPE. In this higher state of tune,
the 3.0 V6 S/C produces the greatest specific power output of any
Jaguar engine to date; 127PS per-litre. This was achieved through
recalibration of the electronic bypass of supercharger and throttle
in order to increase boost without impacting emissions levels.
In creating the new 3.0 V6 S/C, Jaguar's engineers devised an
innovative system of counter-rotating front and rear balancer
weights which lend it the same smoothness and refinement
characteristics as its larger V8 brother.
The 3.0 V6 S/C powertrain is completed by the Jaguar-tuned
eight-speed automatic transmission from experts ZF. This
transmission's large spread of ratios allow the engine's prodigious
power to be fully exploited while optimising economy and emissions.
Efficiency is also boosted by the engine's compatibility with
Jaguar's Intelligent Stop-Start system which improves fuel
consumption by up to seven per cent on the EU combined cycle.
Utilising a twin solenoid starter, the system is able to restart
the engine in less time than it takes for the driver's foot to move
from the brake to the accelerator, and in engine rundown 'change of
mind' scenarios it is able to reenergise the engine via rapidly
refuelling the cylinders.
In the XF the 3.0 V6 S/C will replace the naturally-aspirated
version of the 5.0-litre V8 in all markets for the 2013 Model Year.
In the XJ the 3.0 V6 S/C will replace the naturally-aspirated
version of the 5.0-litre V8 in the majority of markets for the 2013
Model Year. Specific model-by-model economy and emissions figures
will be issued on a market-by-market basis.
2.0-litre I4 240 Turbocharged Petrol
The introduction of the 2.0 I4 Ti 240 to the Jaguar range in XF and
XJ saloons marks a key response to the growing demands of
legislation and customer demand alike. The 2.0 I4 Ti 240's use in
the XF and XJ sees it oriented in north-south configuration and
mated to the same smooth-shifting eight-speed transmission used on
the 3.0 V6 S/C. Again, this transmission's large spread of ratios
maximises both performance and efficiency.
Producing 240PS at 5,500rpm (for a high specific output of 120PS
per-litre) and 340Nm of torque between 1,800 and 4,000rpm, the 2.0
I4 Ti 240 offers flexible delivery, and with an 'as-shipped' weight
of 138kg courtesy of compact dimensions and all-aluminium
construction it is also the lightest Jaguar engine ever. This small
mass aids dynamic agility while, of course, bringing further
emissions and economy benefits.
The 2.0 I4 Ti 240 is an engine that retains all the true Jaguar
qualities of muscular potential, refinement and soul-stirring
character with far better efficiency than a larger capacity
multi-cylinder engine that would traditionally have been required
to produce similar levels of power. For example, the peak torque
output of the 2.0 I4 Ti 240 exceeds that of Jaguar's 3.2-litre
naturally-aspirated V8 from just ten years ago.
Despite its small capacity, it is the 2.0 I4 Ti 240's use of a
low-inertia turbocharger that enables it to produce its
high-specific power and torque outputs. The 2.0 I4 Ti 240's
turbocharger is fed via a lightweight thin-walled exhaust manifold
which allows for a shorter engine warm-up period and therefore
lowers emissions still further.
In order to provide the muscular usability characteristics
required, chain-driven variable timing is applied to both the
intake and exhaust valves to maximise the broad spread of torque,
strong bottom-end performance and outstanding drivability.
Designed from the outset with the goal of enhanced efficiency,
the engine features specialised coatings on the piston rings and
tappets in order to reduce unwanted internal friction. This same
thinking led to the adoption of very precisely controlled direct
injection technology. Fuel is injected in precisely measured doses
several times during each combustion cycle to ensure the most
efficient possible burn with the maximum benefit in terms of power
generation and the lowest fuel consumption and emissions.
Jaguar levels of smoothness and sophistication have been
achieved through the use of twin balancer shafts while significant
steps have been taken to ensure expected levels of refinement.
Amongst these are active engine mounts, an acoustic cover and the
use of high density foam for additional sound deadening.
The 2.0 I4 Ti 240's introduction will be key to meeting customer
demand in global markets which currently take the XF and XJ with
the existing naturally-aspirated Jaguar 3.0-litre AJV6 engine - the
2.0 I4 Ti 240 will replace this unit.
Technical specifications
3.0-litre V6 340 Supercharged Petrol
Engine type: V6, petrol, supercharged
Capacity (cc): 2,995
Bore/stroke (mm): 84.5/89
Peak power (PS@rpm): 340@6,500
Peak torque (Nm/lb ft@rpm):
450/332@1,800-4,000rpm
0-60mph (secs): 5.7 (in XF and XJ)\*
Top speed (mph): 155mph (limited, in XF and
XJ)\*
3.0-litre V6 380 Supercharged Petrol (F-TYPE
only)
Engine type: V6, petrol, supercharged
Capacity (cc): 2,995
Bore/stroke (mm): 84.5/89
Peak power (PS@rpm): 380@6,500
Peak torque (Nm/lb ft@rpm):
460/339@1,800-4,000rpm
0-60mph (secs): figures not yet available
Top speed (mph): figures not yet available
2.0 I4 240 Turbocharged Petrol
Engine type: four-cylinder, in-line petrol,
turbocharged
Capacity (cc): 1999
Bore/stroke (mm): 87.5/83.1
Peak power (PS@rpm): 240@5500
Peak torque (Nm/lb ft@rpm): 340/251@1800-4,000
0-60mph (secs): 7.5 (in XF and XJ)\*
Top speed (mph): 150 (in XF and XJ)\*
\*Manufacturer's estimates. All figures correct at time of
going to press.
Editor's notes
The 3.0 V6 S/C 340/380 and 2.0 I4 Ti 240 join Jaguar's existing
engine range comprising: 5.0-litre V8 naturally-aspirated,
5.0-litre V8 supercharged, 2.2-litre I4 Td (turbo-diese)l,
3.0-litre V6 Td (twin-turbo diesel).
The 2.0 I4 Ti 240 will be offered in XF models in Europe, North
America, China and other selected world markets.
The 2.0 I4 Ti 240 will be offered in XJ models in the UK,
Europe, China and other selected world markets.
The 3.0 V6 S/C 340 will be offered in the XF and XJ in the UK,
Europe, North America, China and other selected world markets.
Full emissions/mpg data on a car by car basis will follow, and
specific market availability can be obtained from each Jaguar
market PR.
For further information please contact: