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A past of the people aspirated V12 earlier hybridization

Sant’Agata Bolognese, 18 January 2023 – The people aspirated V12 motor has been astatine the bosom of Lamborghini’s astir prestigious merchandise lines since 1963; successful fact, to day conscionable 2 designs person been produced for the ace sports cars. The first, fundamentally a racing motor that was made much “civilised” for roadworthy use, was designed by Giotto Bizzarrini. It made its debut successful the archetypal Lamborghini, the 350 GT. The 2nd engine, designed from scratch but with the main method concepts unchanged, was introduced successful the Aventador[1] which was launched successful 2011. This was a important technological measurement guardant for the company, mounting caller standards successful presumption of powerfulness and reliability.

The archetypal motor underwent a important fig of modifications and evolutions implicit its beingness successful bid to present accrued power, and aboriginal to considerably trim substance depletion and emissions. Between 1963 and 2010, the motor was utilized successful antithetic positions. At archetypal it was front-mounted successful the 350 GT, 400 GT and the Espada. It was developed utilizing aluminum for the cylinder heads, crankcase and pistons to bring the value down to 232 kg. The motor was past utilized successful a rear mid-engine layout, rotated 90 degrees to a transverse predisposition successful the Miura. Subsequently it was rotated different 90 degrees to a longitudinal rear-mid position, starting with the Countach, to assistance equilibrium value distribution.

As the size of the motor increased, from 3.5 liters successful the 350 GT to 6.5 liters successful the Murciélago, it became progressively indispensable to trim the motor weight. To this end, caller materials and caller technologies were introduced to little the motor successful the chassis. Today, the V12 is the beating bosom of Lamborghini’s Aventador, Sián, and Countach LPI 800-4, arsenic good arsenic the Essenza SCV12, the track-day car successful which it produces 830 hp.

The commencement of a spectacular heritage

Since its inception, the V12 motor has been considered the astir refined and prestigious of powerplants, adjacent much truthful since they were mounted successful Lamborghinis. Bizzarrini created a V12 that was meant to springiness the institution a accidental to participate the satellite of racing. Instead, Ferruccio Lamborghini elected to crook it into a accumulation motor for his caller model, and truthful began the emotion matter that continues to this day.

“The Lamborghini communicative was calved with the V12,” said Maurizio Reggiani, erstwhile Chief Technical Officer astatine Lamborghini. “It is wide that successful the 1960s, the V12 represented the pinnacle of technology, luxury and sportiness of each car.”

After the 350 GT and its derivatives, the V12 was mounted into the Miura successful 1966, the Countach successful 1971, and the Diablo successful 1990 earlier uncovering its last location successful the Murciélago. The versatility of the motor was proven erstwhile engineers fitted a 5.2 liter mentation of the motor to the LM 002, Lamborghini’s archetypal Super SUV, successful 1986. A peculiar one-of-a-kind mentation of the LM 002 was besides made, featuring a 7.2-litre 700 hp V12 usually utilized connected offshore racing powerboats.

A extremist alteration of thinking

Thanks to the treble overhead camshaft solution for each cylinder bank, a archetypal for engines designed for accumulation cars, the ‘V’ space of the motor could beryllium increased, which meant that the halfway of gravity could beryllium lowered. For the Miura, the transverse rear mid-engine layout was chosen to execute amended value organisation and to shorten the car’s wheelbase. The gearbox and differential casing were integrated into the powertrain, helping to marque the wide assembly of this legendary ace sports car much compact.

Weight organisation is key

With a presumption to further improving value organisation for the Countach, the plan squad utilized the aforesaid motor but relocated it to mid-rear presumption and rotated it an further 90 degrees, fundamentally 180 degrees compared to the archetypal 350 GT. They mounted the gearbox successful beforehand of the engine, practically “in the cockpit”. In its last iteration, the Countach’s motor capableness had accrued to 5.2 liters. With the exemplary twelvemonth 1986, the V12 mounted successful the Countach was besides homologated successful the U.S. market. This milestone was achieved utilizing physics substance injection, which replaced carburetors successful markets wherever anti-pollution regulations were much stringent.

“With the accrued capacity, the motor became longer, and that meant having to determination the halfway of gravity toward the rear of the car,” said Reggiani. “This made it much hard to drive, and you had much oversteering effect. The layout was revolutionized, utilizing the motor to determination the halfway of gravity. The Countach motor is truly the archetypal successful a procreation of engines that are inactive present contiguous successful presumption of powertrain layout and presumption successful the car.”

Meeting the demands of four-wheel-drive

Work started successful 1985 connected the improvement of the V12 successful mentation for its usage connected the caller ace sports car, Diablo, which would debut successful 1990 with the motor capableness accrued to 5.7 liters and powerfulness transportation of 492 hp astatine 6800 rpm. In its VT mentation presented successful 1993, the Diablo was the archetypal Lamborghini ace sports car to besides beryllium disposable successful a four-wheel thrust version. The Diablo SV-R, connected the different hand, was created to contention successful the Super Sport Trophy, which debuted arsenic a enactment contention astatine the 1996 24 Hours of Le Mans. Thirty-two Diablo SV-Rs took portion successful what was Lamborghini’s largest ever racing programme anterior to the Super Trofeo title inaugurated successful 2009.

The 1998 Diablo GT, fundamentally the archetypal Diablo exemplary to diagnostic the styling elements of the 2nd procreation that would debut successful 1999, brought further large method upgrades to the engine. Of peculiar enactment was the adoption of an idiosyncratic throttle assemblage for each cylinder, a prime dictated by the tendency to amended the engine’s throttle response. This alteration was important arsenic good arsenic futuristic, considering that akin exertion is integrated into the caller Huracán GT3 that volition beryllium racing successful 2023.

New challenges with the advent of Murciélago

With Audi’s acquisition of a bulk involvement successful Lamborghini, a play of sweeping alteration began. The caller owners were alert of Lamborghini’s request to support its individuality and exclusivity. “We were capable to make a narration betwixt Audi and Lamborghini that acceptable limits but besides respected needs,” said Reggiani. “Right from the start, Audi understood what it could inquire of Lamborghini and what it could not, creating a equilibrium that allowed some companies to amended by promoting their differences. The specificity of Lamborghini, perceived by some the shareholders and the different brands successful the group, has been 1 of the keys to our success. What we were capable to show with the improvement of the V12 gave america the assurance that enabled america to fine-tune the V10 that debuted connected the Gallardo and to make each our different products successful a distinctly Lamborghini way.”

Under the caller ownership, a antithetic attack was taken to the improvement of the V12. From achieving precocious powerfulness output, the absorption began to displacement toward volumetric ratio to conscionable the progressively stringent regulations. One illustration is that of the Murciélago, which was unveiled successful 2001 with a 6.2-liter V12 motor that produced 580 hp. It was updated successful 2007 with capableness accrued to 6.5 liters and was susceptible of generating an awesome 670 hp. Moreover, the car was 100 kg lighter and the engine, upgraded successful respective areas, was fitted with dry-sump lubrication with lipid recirculation utilizing scavenge pumps. This allowed Lamborghini to trim the region betwixt the crankshaft and the bottommost of the car, which led to improved handling.

The improvement of the V12 motor for the Murciélago allowed Lamborghini to find its ain spot wrong the realm of Audi, but it was the determination to plan a caller V12 from scratch, aft 45 years, that allowed Lamborghini’s designers to acceptable caller goals and instrumentality vantage of caller opportunities.

Clean-sheet plan for Aventador

“When you plan an motor from scratch, what you person to see from the outset are the bound conditions that you person to beryllium capable to prolong successful each tract of usage and from each constituent of view,” said Reggiani. “For Lamborghini, the Aventador was similar a formal rehearsal to beryllium that we could execute power, weight, and performance, but besides the reliability that was required of america by the Group. The results talk for themselves. We sold astir treble the fig of cars that were estimated initially, and this is simply a bully indicator of the occurrence the Aventador has enjoyed. Despite the modifications and improvements made implicit the years, from the engineering constituent of presumption the motor is precisely the same.

“When we started moving connected the Murciélago, we had 6.2-liter engines and an mean of 620-640 hp. With the Aventador, we started with 6.5 liters and 700 hp, knowing that, implicit the expected beingness of the model, the powerfulness would person to summation by astatine slightest 10 percent, truthful it was a large challenge. We besides had to instrumentality into relationship the Euro 5 emanation standards and the information that, for this archetypal task of a caller Lamborghini motor nether the Audi umbrella, we had to conscionable each the requirements mandated by the Group.”

The Aventador motor was unveiled successful 2011, producing 690 hp astatine 8250 rpm with 6.5-liter displacement. It was past modified for the LP 700-4 successful 2013, the LP 750-4 successful 2015, and the Superveloce successful 2016. With the accomplishment of the SVJ successful 2019, the motor output was accrued to 759 hp, and successful the 2021 Ultimae, the past of the road-going Aventadors, to 780 hp. The aforesaid motor is besides fitted connected the Essenza, a track-only car that is not taxable to the constraints of roadworthy usage homologation. In this configuration, the motor reaches 830 hp, a existent marvel of modern engineering. “The highest look of our V12 was reached with the Essenza V12, wherever the aforesaid motor is capable to nutrient 830 hp,” said Reggiani. “The motor is the same, but the exhaust backpressure is little due to the fact that you don’t person the filters and the acoustic insulation elements, and the intake filter has little unit drop, truthful you person much volumetric efficiency. From a operation standpoint, the occurrence of this V12 is impervious that a bully motor from the opening is capable to supply thing unsocial successful presumption of emotion and power, a imaginable that is evident successful presumption of thermodynamics and mechanical components.”

The Aventador was the past Lamborghini to tally a axenic people aspirated V12 motor earlier the adjacent hybrid section is rolled retired successful the archetypal 4th of 2023.

[1] Fuel depletion and emanation values of each Aventador models; Fuel depletion combined: 18.0-18,0 l/100km (WLTP); CO2-emissions combined: 448-442 g/km (WLTP)