The 812 Competizione and 812 Competizione A sport the most exhilarating V12 on the automotive scene and is derived from the multi-award-winning engine powering the 812 Superfast. The result is a naturally-aspirated 830 cv engine that pairs impressive power with electrifying delivery and the inimitable soundtrack that Ferrari V12 purists know well. To boost the output of the engine, which has the same 6.5-litre displacement as the 812 Superfast’s V12, several areas have been significantly re-engineered to achieve a new record red line while optimising the fluid-dynamics of the intake system and combustion, and reducing internal friction.
Maximum revs are now 9,500 rpm which, together with a rising crescendo of torque delivery, unleashes a feeling of progressive and boundless power and acceleration. A result delivered by the meticulous redesign of key engine components such as the con-rods, pistons, crankshaft and distribution. The titanium con-rods are 40% lighter than steel versions whilst delivering the same mechanical resistance; the piston pins, on the other hand, have been given a diamond-like carbon (DLC) coating to reduce the coefficient of friction to the benefit of performance, fuel consumption and wear. These modifications are combined with a rebalanced crankshaft, which is also 3 percent lighter than the previous version.
The most significant improvements, however, are to the distribution and the cylinder heads, which have both been completely redesigned. The cams (which now feature DLC coating) now action the valve stems via DLC-coated steel sliding finger followers, which are derived from Ferrari’s F1 experience and were developed specifically for this engine to provide a higher lift profile.
To ensure that the engine breathes correctly across the entire rev range, the intake system was redesigned: both manifold and plenum are now more compact to reduce the overall length of the tracts, thus delivering more power at high revs, while the torque curve is optimised at all engine speeds by a system of variable geometry inlet tracts. This enables the length of the intake tract assembly to be continuously modified, adapting it to the firing order to maximise the dynamic charge in the cylinder. The result is an engine that revs with tremendous speed all the way to the cut off with no drop off towards the red line.
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