The Gentleman Magazine Issue 3 | June/July - Page 34

The development process resulted in a maximum power output of 800 cv at 8,500 rpm, a new benchmark for the Ferrari range, in addition to a specific power output of 123 cv/l, a completely unprecedented figure for an engine front-mounted in a production car. The result of all these developments is a boost in maximum power output to 800 cv at 8,500 rpm (an impressive 60 cv more than the F12berlinetta) and maximum torque of 718 Nm @ 7,000 rpm - a completely unprecedented achievement for a naturally-aspirated Ferrari production engine. The torque curve illustrates this impressive improvement on the F12berlinetta in terms of acceleration and instantaneous power, particularly at high revs. The engine’s power is underscored by a full, rich exhaust sound that exploits the acoustic clout delivered by its increased displacement. A significant 80% of maximum torque is available at just 3,500 rpm, improving both flexibility and pick-up at lower revs. The shape of the power curve, which rises constantly all the way to the maximum revs of 8,500 rpm, and the rapidity with which engine speed increases, thanks to low inertia, give occupants the feeling of boundless power and acceleration. The latter sensation comes courtesy of the overall increase in maximum power output and the optimisation of the aforementioned power curve between 6,500 and 8,900 rpm, which maximises the average horse power exploitable for press-on track driving when engine revs are kept consistently high. These performance levels were achieved in part by optimising the engine design and in part by introducing innovations, such as the use of a 350 bar direct injection system for the very first time on a spark-ignition engine, and the control system for the variable geometry inlet tracts, developed on naturally-aspirated F1 engines, which is a further evolution on its application on the special limited-series F12tdf. These systems allow the increase in displacement from 6.2 to 6.5 litres to be exploited to maximise power output whilst retaining excellent pick-up even at low revs. The high pressure injection system also improves nebulisation of the injected fuel thus dramatically reducing the the amount of particulates emitted when the catalytic converter is warming up, ensuring the engine complies with all emissions regulations. The exhaust system geometry was evolved to increase and balance the sound from the engine compartment and tailpipes, with a 6-into-1 manifold. The aim being, of course, to enhance the car’s already extreme, sporty character. The resulting engine sound is strong and smooth inside the cabin in all driving conditions. Transmission The engine’s maximum power-to-fuel consumption ratio has also been improved, attesting to the engine’s exceptional efficiency in urban driving contexts. This was achieved in part as a result of Stop&Start On the Move strategies which cut and restart the engine while the car is moving. The new 812 Superfast is fitted with Ferrari’s F1 dual-clutch transmission which has been further evolved to meet the car’s track driving performance targets and cope with the boost in maximum revs to 8,900 rpm. The gear ratios on all of the gears have been shortened by an average of 6% to exploit the extra performance and higher revs to the fullest as well as to improve the car’s acceleration without compromising pick-up in higher gears. Particular attention was also paid to calibrating the Manettino settings to enhance the engine’s potential and the sensation of extreme power delivered by the car. That said, the driver will always be able to easily and confidently dose the massive torque available with the accelerator pedal, thanks to smooth, progressive power delivery at all engine speeds. There was particular focus on calibrating the gear-shift strategy to enhance the car’s sportiness, further slashing response times and creating a feeling of massive power and speed both in terms of longitudinal acceleration and auditory perception of the rising rpms. In both up- and down-shifts, the transition time has been reduced by 30%. Combined with the shortened 34 | The Gentleman Magazine