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post #139 of (permalink) Old 02-24-2010, 05:43 AM Thread Starter
DJTaurus
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Abarth Punto Evo 165hp/250Nm
Abarth Punto Evo SS 180hp/300Nm

Abarth Punto Evo - Photo Archive - Fiat Group Automobiles Press



Quote:
ABARTH PUNTO EVO: The EVOlution of power

The EVOlution of race-inspired technology

The new 165 HP Multiair 1.4 turbo petrol engine is the result of a winning partnership between Fiat Powertrain Technology and Abarth race-derived know-how.

Since the Fiat Powertrain engine was first presented at last year’s Geneva motor show, Abarth engineers have been working hard to squeeze every last drop of power out of it and to improve its sporting performance in typical Abarth style.

Multiair engine technology has revolutionised the world of petrol engines. Compared to a conventional petrol engine of equivalent size, a MultiAir engine develops more power (up to 10%) and more torque (up to 15%), while consuming significantly less (up to 10%) and emitting less CO2 (up to 10%), fewer particulates (up to 40%) and less NOx (up to 60%).

The genius of the Multiair engine is embodied in its electro-hydraulic valve control system. Both fuel consumption and pollutant emissions have been slashed by using the engine’s intake valves to control the air flow directly, without a butterfly valve in the intake. Using this already advanced technology as a starting point, Abarth’s development department has made a series of modifications to arrive at the innovative new 165 HP Multiair 1.4 16 V. Power output, for example, has been optimised by the intelligent application of a new, larger turbocharger from Garrett. The result is superb performance with peak torque of 250 Nm (25.5 kgm) at 2250 rpm, and acceleration from 0 to 100 km/h in only 7.9 seconds.

The sporty new Abarth Punto Evo also features a new performance mode selection system that modulates engine, braking and steering action to offer a choice of two different driving styles - Sport and Normal – to suit road conditions and driver preference.

The mode selector is conveniently located on the central tunnel in front of the gear lever and lets you switch between the two modes quickly and easily, simply by moving a lever. The currently selected mode is displayed on the dashboard. If you are looking for a safe, relaxing drive, all you have to do is select Normal mode, while if you feel the need to enjoy the full performance of your Abarth Punto Evo, flip the switch to Sport position and thrill to the power! Sport mode makes the car more responsive, using electrical servo systems to modify handling and deliver the ultimate sporting feel. Due attention has also been paid to safety of course, so Sport mode also engages the TTC system automatically.

As in rally cars, the driver is assisted by GSI (Gear Shift Indicator). On the Abarth Punto Evo, GSI acts like an intelligent “co-driver” and provides a signal on the instrument panel to tell you when the right moment has arrived to shift up reducing fuel consumption.

The Abarth Punto Evo’s 1.4 Multiair petrol engine also features Fiat’s innovative Start&Stop system. This switches the engine off automatically when the vehicle comes to a halt and the engine is left to idle, and restarts it again as soon as you are ready to move off. The system finds its ideal application in situations like city traffic and sequences of traffic lights. Whenever the control logic permits, Start&Stop automatically switches off the engine, saving up to 10% of fuel consumption and emissions in the urban cycle and up to 3.5% in the NEDC test cycle.

As soon as you take your foot off the brake or engage first gear, the system immediately restarts the engine to give you instant power and responsiveness. On top of this, if you accidentally stall the engine while moving off, all you have to do is press down on the clutch to re-start it automatically.

Start&Stop offers additional benefits in terms of comfort since it eliminates noise and vibrations from the passenger compartment while the car is stationary.

The system is full interactive, and tells you whether the function is engaged or not via clear indications on the instrument panel. Start&Stop can be disengaged quickly and easily by a switch on the dashboard near the steering column.

The innovative Multiair engine guarantees sports performance plus low emissions and reduced fuel consumption. Tests carried out by Abarth engineers have demonstrated that fuel consumption has been reduced despite the fact that power output has been increased. In particular, consumption is only 8.1 l/100 km in the urban cycle; only 6.0 l/100 km in the combined cycle, and 4.8 l/100 km in the extra-urban cycle. The Multiair engine is also impressively clean and already conforms to Euro 5 standards thanks to emissions of only 142g/km.

The EVOlution of active and passive safety

The Abarth philosophy combines both performance and safety. The Abarth Punto Evo is therefore equipped with a series of highly effective systems to guarantee safe handling on all surfaces.

TTC (Torque Transfer Control) is the key to the car’s active safety. TTC improves the transfer of torque from the engine to the wheels and guarantees excellent handling on bends, making fast driving safer and more fun than ever. TTC is a differential locking system that uses the mechanical differential as a reactive element in the transmission to control torque via the braking system and ESP sensors (wheel speed, steering angle, yaw, etc.).

TTC is activated automatically in Sport mode. When engaged, the system automatically adjusts the degree of diff locking applied in accordance with dynamic factors like speed.

In the area of safety, the Abarth Punto Evo sets new standards thanks to 7 airbags, including a driver knee airbag. The Punto Evo is one of very few cars in its segment with a driver knee airbag fitted as standard on all versions.

The Abarth Punto Evo also boasts a powerful and effective braking system. Disc brakes are fitted to all wheels, with ventilated discs and Brembo double piston, fixed calipers at the front. The suspension system is derived from a tried and tested Abarth configuration. Front suspension is provided by independent McPherson struts, while rear suspension is semi-independent with a torsion bar. Abarth has also fitted a larger anti-roll bar together with front springs that are 20% harder than those of a standard suspension system. The result is impeccable road holding plus a high level of passenger comfort.



The EVOlution of race-inspired aerodynamics

Also on a style level, the changes that Abarth have made to the Punto Evo concentrate on improving the car’s performance and aerodynamics.

Compared to the Fiat version of the car, the front bumper has been extended in width to incorporate the side flaps. The black intake cowl on the front has also been made deeper to match the lateral air outlets. This corrects and controls air flow and significantly improves aerodynamic efficiency around the sides of the car, just as on the full rally version.

The rear of the Abarth features a completely redesigned bumper incorporating side air outlets. The diffuser, designed to optimise air flow, is a major feature of the bumper. The diffuser is the same as on the previous version, but has been given a new surround to enhance its looks and align its styling with the front splitter.

The exhaust features larger diameter twin tail pipes, an obvious tribute to Abarth’s glorious history. The new pipes, however have been given a different satin finish.

The reversing lights and rear fog lights have been moved to the centre of the diffuser, forming a focal point as on formula racing cars, while new side reflectors outline and accentuate the profile of the aerodynamic deflector, simulating the effect created by the LED light cowl on the rear window.

The spoiler has been completely redesigned, not only in terms of colour (it is now the same colour as the rest of the body, giving the car a longer, more dynamic look), but in terms of size too. Its longer, tapered shape has improved the car’s CX and CZ values and made the new Abarth Punto EVO more stable than its predecessor.

The logo trim has also been redesigned and combined with a new grille with a more sporty appearance. In the same way the badge is no longer round as on the previous version but has returned to the original shape, as used on the 500.

The side flaps and skirts are finished in the same colour as the body, emphasising the car’s aggressive nature and its “stuck to the road” handling. The side graphics have also been restyled to match the front bumper and given new dimensions. The result is more in proportion with the side of the car and gives the body colour areas a sleeker appearance. Another new feature is the completely redesigned 17’’ spoked wheels, with the Abarth scorpion logo in the centre.

The car’s interior has been completely updated too. The new materials have an appearance and finish inspired by the surface of motor racing circuits, bringing all the excitement of the track into the car.

The new central control console is divided into two sections. The audio section is characterised by a black surface and a central LCD display. Underneath, a separate section houses the air conditioning controls. The top of the console houses the air vents and a storage compartment.

The purpose-designed Jaeger instrumentation features larger dials for the speedometer and rev counter, new race-inspired graphics, and a new anti-glare cowling covered in leather with open red and yellow stitching.

The visual link with the new textured seats is obvious. The seats and seat backs are upholstered in soft black leather while the seat sides are finished in high-tech fabric to give the ideal balance between comfort, breathability and wear resistance.

Customers can still choose the optional “Abarth Corse” seats by Sabelt. These seats offer a perfect blend of racing characteristics including light weight and the ability hold the body steady against lateral and longitudinal forces.

The EVOlution of power – the “SS” kit

As was to be expected from Abarth, a high performance kit will be made available to coincide with the launch of the Abarth Punto Evo to boost engine power even further. In keeping with Abarth tradition, the tuning kit will give the new car more power than the basic model, enabling the Multiair 1.4 16v Turbo engine to develop a maximum power of 180 HP.

Following Abarth’s performance tuning philosophy, the “SS” kit also includes modifications to chassis components, including perforated, ventilated discs, high performance brake pads, lower springs, and 18” Abarth “SS” alloy wheels painted in white or titanium, and fitted with performance tyres.
The performance delivered by the Abarth Punto Evo “SS” kit is further enhanced by a special “powered by BMC” air filter.

As for the Grande Punto and the 500, the Abarth Punto Evo’s “SS” kit comes in a classic wooden performance case. To guarantee the highest standards of quality and safety, the kit can only be installed by Abarth’s official performance tuning network.
Fiat SGE L2 900cm3



Motore TWIN-AIR - Photo Archive - Fiat Group Automobiles Press

Quote:
TWIN-AIR - 85 HP, world preview

The new two-cylinder engine family made by FPT - Fiat Powertrain Technologies called TWIN-AIR will be making its debut at the Geneva Motor Show. This is a brand-new concept on the worldwide auto scene and confirms the leadership of the Fiat Group in this field.
Using next-generation technology, the new engine implements the revolutionary Multiair system combined with special fluid dynamics optimised for the best fuel efficiency. Furthermore, by taking the concept of downsizing to the extreme and masterly tuning the basic mechanics, the new family - delivering from 65 to 105 HP - emits 30% less CO2 than an engine of equal performance.
Visitors to the show will admire the first application of this new engines on a 500, the first Fiat model on which it will be introduced next July. The car is equipped with a two-cylinder turbo 85 HP engine which has the lowest CO2 emission levels for a petrol engine (up to 95 g/km) without compromising performance and driving pleasure. Compared with the two engine versions available today, it provides excellent performance with a major fuel reduction: the new turbo two-cylinder 85 HP engine consumes down to 15% less fuel and has 25% more performance than the 1.2 8v, while fuel consumption drops to a remarkable 30% with respect to the 1.4 16v with comparable performance and the same high driving pleasure.
Furthermore, with respect to a four-cylinder of equal performance and medium displacement, the new engine is significantly shorter (-23%) and lighter (-10%), opening the way to interesting further developments, such as methane fuel feed or hybrid technology combinations, again under the sign of greater eco-friendliness. In particular, a methane version of the TWIN-AIR will be available soon providing a further CO2 emission reduction: this is possible by adopting a pair of special injectors in addition to the petrol injectors on the intake manifold rails. Improving these fuel saving results using internal combustion engines will be difficult and alternative technologies will need to be developed. The combination of traditional engines and electric motors appears particularly promising. Precisely because of its small size, the TWIN-AIR is well suited to be coupled with an electric motor, and in general with a device arranged between engine and gearbox for recovering and storing the energy which is normally wasted during braking.
Nothing short of an engineering gem, the two-cylinder implements the revolutionary Multiair technology developed and patented by FPT – Fiat Powertrain Technologies, which was introduced on FIRE engines last year for the first time. The heart of Multiair is a new electro-hydraulic valve management system that reduces fuel consumption by controlling air directly via the inlet valves (without using the throttle). Multiair reduces polluting emissions (thanks to improved combustion control) and also considerably improves performance by boosting driveability with respect to a traditional petrol engine of equal displacement.
Furthermore, the new TWIN-AIR engine takes the concept of downsizing to the extreme: combining a small displacement engine with a next-generation turbocharger provides performance comparable to - or even better than - that of a larger engine but with less fuel consumption and lower emissions. And more: the turbo significantly increases the maximum torque, making it available at a very low rpm, with the result of offering greater flexibility and an unrivalled promptness of response compared to conventional aspirated engines. All this comes with a simple build that benefits strength and reliability.
Last but not least, the new engine was painstakingly optimised and tuned. For instance, the basic two-cylinder architecture - combined with the low friction of internal parts - ranks this engine best in the "friction" class in the world. Furthermore, computer simulations have been used to identify the best possible standard displacement in terms of thermo-dynamic efficiency, and the best fluid dynamic configuration to optimise and get the best out of the MultiAir system. Finally, special attention has been placed on the NVH (Noise, vibration, and harshness) aspect to ensure vibration performance at least equivalent to that of a four-cylinder, with equal performance but with a characteristic sound. For this purpose, a balancing countershaft was used to maintain optimal vibration levels in all operating conditions of the engine, from the idling speed to top power.


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