Scarperia e San Piero, 28 October 2023 –
Ferrari has unveiled the 296 Challenge, which will make its debut in the 2024
season of the Ferrari Challenge, at the Mugello Circuit during the Finali
Mondiali. The new car is the ninth model fielded by Ferrari in the history of
its single-make championship, which is now in its 32nd season.
The car represents a tangible step forward for the company’s
single-make series: the progressive improvement in quality and competitiveness
of the drivers taking part worldwide meant that the 296 Challenge development
team were able to make even more radical modifications to the original model
than would have been the case in the past, making full use of Ferrari’s
unparalleled experience in the motorsport world. Although still very much in
the tradition of the cars Ferrari has developed over the years for gentlemen
drivers, the 296 Challenge draws more on the experience built up with its
racing counterpart, the 296 GT3, than previous models, thus also targeting
drivers with ambitions for a future in GT racing.
The philosophy underpinning the 296 Challenge demanded an
evolution of the concept behind the Ferrari Challenge competition model. It
represents a further step on from a production-derived car with relatively
modest modifications, to a car with a number of important revisions to optimise
its track use. This paradigm shift allowed the design team to create a model
that is, in certain respects, extreme and that significantly raises the bar in
terms of overall performance, as well as in its consistency and repeatability
throughout test sessions or races.
The 296 Challenge is the very first car in the single-make
series to sport a V6 engine - all of the previous models used in the series
were powered by V8 engines. The biggest change over the 296 GTB, in line with
the development of the 296 GT3, is that the hybrid powertrain was removed to
reduce weight, while the power output was increased to 700 cv, resulting in a
record specific power output for the segment - 234 cv/l. In terms of
aerodynamics, the Challenge car adopts solutions derived from the 296 GT3 which
have been developed to new extremes, yielding unprecedented downforce figures.
These were achieved with contributions from the S-Duct, which
draws air into the central radiator and then channels it out through a vent on
the bonnet, the swan-neck rear wing layout (another element that harks back to
the development of the 296 GT3), and a series of devices that maximise the
stability of the downforce generated in different trim conditions.
The braking system was also completely redesigned with the
first-ever adoption of new CCM-R PLUS discs, which use technology derived from
the most extreme track applications. The introduction of this innovation
together with the circuit-specific evolution of the ABS EVO Track used on the
296 GTB, has delivered previously unimaginable braking performance and
repeatability. New Pirelli tyres specifically developed for the model also
contribute to this achievement. The 296 Challenge is 2” faster around Mugello
than the previous model, the 488 Challenge Evo, which was presented at the 2019
Finali Mondiali at Mugello and debuted in the 2020 season. Significantly, the
296 Challenge can also deliver that performance consistently throughout an
entire race.
POWERTRAIN
At the very start of the development process, it was decided to
remove the hybrid elements from the V6 powertrain as per the 296 GT3. The
electric motor and high voltage battery were eliminated and power output of the
twin-turbo V6 was boosted to 700 cv. This approach helped limit the car’s
weight and the complexity of the overall unit, both fundamental factors for
track applications.
The new architecture led to the development of a more linear
exhaust line located in the upper part of the engine compartment. The shape of
the exhaust reduces back pressure by 30% and provides a significant
contribution to the increase in power. The Gasoline Particulate Filter (GPF)
used on the road car has been removed, but the highly permeable catalytic
converter normally used in racing remains.
Compared to the road-going engine, the Challenge specification
sees a number of modifications to capitalise on the lower back pressure. The
maximum speed of the turbos has been increased by 10% to 180,000 rpm,
increasing the turbo boost pressure by the same amount, and the spark advance
has been anticipated, providing a slight increase in pressure in the combustion
chamber. The result is a 37 cv increase in power compared to the road-going 296
GTB and GTS, with the same maximum torque output, slightly lower in the rev
range.
The increase in the V6’s power output required additional
thermal protection in the engine bay with specific turbo insulation. Removing
the hybrid elements also led to the introduction of an air-con compressor and a
12-volt starter motor, both driven by the crankshaft via a dedicated belt,
fulfilling the dual function of starting the engine and charging the 12V
electrical system.
Thanks to its new 234 cv/l specific power output, the 296
Challenge’s ICE sets a new record for a road-derived Ferrari and demonstrates
just how central technology transfer – from road to race, and race to road - is
to Ferrari in order to constantly develop its products.
VEHICLE
DYNAMICS
The 296 Challenge’s braking system sets a new benchmark thanks
to the world-first adoption of CCM-R PLUS for the brake discs (408mm diameter
at the front, 390 mm at the back). This solution is derived directly from the
most extreme applications in motorsport, not least Formula 1, and exceeds the
performance of all other carbon-ceramic brakes used in racing.
The manufacturing technology uses long carbon fibres in a 3D,
multi-directional matrix to deliver a tangible increase in durability (+ 100%)
and thermal conductivity (a three-times improvement) compared to a traditional
CCM solution. The braking surface also has a special silicon carbide (SiC)
ceramic coating which improves durability and delivers an excellent coefficient
of friction in the most extreme conditions of use.
Disc cooling is by way of a complex layout of ventilation ducts,
employing cutting-edge CFD computation techniques to optimise their geometry.
The lifespan of the CCM-R PLUS disc is around three times that of the CCM
version, with no tapering of performance whatsoever across its entire lifespan.
The ABS EVO brake-by-wire control system, introduced for the
first time on the 296 GTB, has been evolved specifically for track use on the
296 Challenge. This new controller uses the information from the 6-way Chassis
Dynamic Sensor (6w-CDS) to obtain a very precise estimation of speed and thus
determine the target slip for all four wheels and optimise braking
distribution. This in turn allows the longitudinal force of the tyres to be
better exploited when braking in a straight line and on braking on turn-in
(with an average 6% improvement at the rear alone), when the rear axle is
subject to the natural compromise between braking performance and lateral
stability.
At the same time, more accurate estimation allows repeatability
of the manoeuvre around the target value to be maximised, reducing variations
due to the tolerances of the components or the natural variability of test
conditions, such as tarmac temperature. The combination of the ABS EVO Track
and the innovative CCM-R PLUS discs means the 296 Challenge delivers previously
unthinkable performance in terms of both average deceleration and repeatability
in extreme use, thus enhancing the car’s performance on the track.
The 296 Challenge is equipped with new Pirelli tyres, with a
design phase that involved the use of advanced simulation technologies and
almost a year of development, including a variety of different verification
loops on international circuits. The use of a wider front wheel with an 11”
channel allowed Pirelli to develop a tyre geared towards better turn-in grip,
lower wear and greater consistency over the course of a race.
AERODYNAMICS
The aim with the 296 Challenge’s aero development was to use the
knowledge built up with the 296 GT3, to deliver unprecedented downforce figures
for Ferrari’s single-make series. The primary goal of delivering downforce that
is easily exploitable on the track was achieved by keeping variations and
balance to an absolute minimum both on the straight and through corners. This
makes the car agile and responsive and very predictable at high speeds, thereby
simultaneously guaranteeing extreme performance and driving thrills.
The layout of the cooling system was modified as a result of
removing the hybrid elements. The location and arrangement of the radiating
masses is the same as on the 296 GT3, with the water radiator for the high
temperature circuit at the front, with the condenser for HVAC circuit ahead of
it. The two intercoolers and the engine air filters from its road-going
counterpart have been retained at the rear.
At the front, the engine coolant radiator is fed by an air
intake in the centre of the bumper: this allows the maximum possible amount of
cold air to be drawn in in dynamic conditions. The hot air coming off the
radiator is drawn upwards and exits through a vent on the front bonnet. This
GT3-derived solution increases the amount of cooling air and seals the car’s
underbody, a fundamental area in high-efficiency downforce generation.
The vent on the bonnet has specific wing profiles that optimise
the venting of the air from the S-Duct channel, which is immediately behind the
radiator shroud. The rear bumper has been redesigned compared to the 296 GTB:
the engine bay venting area is now much larger to guarantee adequate extraction
of hot air flows in both static and dynamic conditions.
Huge work was lavished on honing the fluid-dynamics of the brake
ventilation ducts. At the front, the air intakes are on either side of the
coolant radiator, while at the rear, cooling demands required separate ducts.
Part of the air flow is drawn in through an intake on the sill, while a second
air flow is directed through an aperture in the rear bodywork, just ahead of
the fixed wing.
The 296 Challenge can generate 870 kg of downforce at 250 km/h
with the spoiler at its maximum angle of attack. This is an 18% increase in
downforce compared to the 488 Challenge Evo. The car’s aero design focused not
just on the pursuit of performance, but also on driveability. To achieve both
of these goals, the car’s sensitivity to variations in downforce and the aero
balance to the car’s ground clearance, yaw and roll were minimized.
Most of downforce over the front axle is generated by the
splitters and the front section of the underbody, while the rear aero is
dominated by the adjustable-angle fixed wing. The front underbody was designed
to create ground effect to keep the flow stable even when the ride height is
reduced under braking or in cornering. The central area is dominated by the
S-Duct, which connects the underbody with the upper body to maximise the
efficiency of the central diffuser and tangibly reduce the sensitivity of the
296 Challenge’s aero balance to pitch. Aside from acting as a vent for the air
feeding the central diffuser, the S-Duct creates a connection between the
underbody, which functions in close proximity to the ground, and the upper
body, an area in which pressure remains much more consistent in racing
conditions.
The underbody in the central area has been raised: having it
higher off the ground guarantees that the central diffuser can work efficiently
during manoeuvres when the front of the car is closer to the ground, such as,
for instance, braking at the end of a straight, thereby guaranteeing much more
consistent downforce.
There are two diffuser ramps, one on either side of the S-Duct,
which create vertical expansion. Either end of the splitter, below the flick,
is a separate wing section, which marks the debut on a closed-wheel competition
car of the F1-inspired, double-element concept that makes downforce less
sensitive to variations in trim.
Behind the S-Duct are three pairs of vortex generators, which
create vortices on the underbody and generate lateral expansion, creating local
suction and consequently high-efficiency downforce. The side of the splitter
was designed to activate the underbody and manage the flows downstream of it.
The end plates generate concentrated vortices to manage the wake from the front
wheels.
Downforce generation over the rear axle comes mostly from the
fixed spoiler, the angle of which can be adjusted to seven different positions.
This allows the downforce level and balance to be set to meet the specific
requirements of each circuit the car competes on. The wing is supported by two
aerofoil struts, which attach on the upper surface. This solution minimises
aerodynamic interference on the underside of the profile, which generates most
of the downforce and is more sensitive to flow disruption.
The wing’s end plates are equipped with appendages that generate
downforce and improve the efficiency of the lower edge of the profile. The wing
works in symbiosis with the rear diffuser and the underbody, which has two
pairs of vortex generators in its rear section.
The rear bumper has also been redesigned with respect to the 296
GTB: the vertical exterior profile has been optimised to reduce drag. Two vents
have been added at the sides to channel air out of the rear wheel arches and
into the car’s wake. This optimises the efficiency of the rear underbody and
reduces overall drag, thereby boosting overall aero efficiency.
COCKPIT
AND SAFETY
The 296 Challenge’s cockpit benefits from Ferrari’s experience
in both the single-make series and GT racing. The ergonomic Ferrari 488
Challenge Evo steering wheel design has been retained with ad hoc improvements.
Amongst the main differences is the position of the engine rev LED bar which is
no longer on the steering wheel, but in the digital instrument display, making
it more readable. The cockpit has been updated with a new control layout on the
central tunnel, designed to ensure that the most frequently used controls are
always to hand.
The circular air con vents deliver an optimal flow to improve
driver comfort and can be adjusted in all directions, while the seat, which is
derived from the 296 GT3, was developed to further improve ergonomics,
particularly in the head, shoulder and elbow areas. In compliance with the
international FIA racing standards, the roll cage has been meticulously
designed down to the last detail, using the most sophisticated computation
technologies.
OPTIONAL
EQUIPMENT
PASSENGER
SEAT
A passenger seat can be installed if the driver wants support on
the track from a coach or to treat a guest to the thrill of a lap aboard the
296 Challenge. The passenger seat can be easily removed to return the car to
racing spec.
LTE
ANTENNA
The LTE antenna provides a Marshalling function (communications
from the race marshals sent directly to the instrument panel) and will be
compulsory for cars competing in the Challenge championship. Further functions
may be added successively.
EXHAUST
SILENCERS
For tracks with noise level restrictions, Ferrari has developed
a specific silencer that can easily be fitted to the basic exhaust line by
removing the two tail pipes.
FERRARI
CHALLENGE
The 296 Challenge will make its first appearance in the 2024
season as the protagonist in the Europe and North America series of the Ferrari
Challenge Trofeo Pirelli; it will make its debut in the UK and Japan series the
following season.
The 296 Challenge is the ninth model to be launched in the
history of the Prancing Horse’s single-make series, the first edition of which
was organised in 1993. Now the longest-running single-make championship on the
international scene, it has seen the following models being fielded: 348
Challenge (1993-95), F355 Challenge (1995-2001), 360 Challenge (2000-2006),
F430 Challenge (2006-2011), 458 Challenge (2011-2013), 458 Challenge Evo
(2014-17), 488 Challenge (2017-2019) and the 488 Challenge Evo (2020-).