Lamborghini LE3512

Last updated
Lamborghini LE3512
Musee Lamborghini 0085.JPG
Overview
Manufacturer Flag of Italy.svg Lamborghini
Production1989–1993
Layout
Configuration 80° V12
Displacement 3.5  L (214  cu in)
Cylinder bore 87  mm (3  in)
Piston stroke 49  mm (2  in)
Valvetrain 48-valve, DOHC, four-valves per cylinder
Combustion
Turbocharger No
Fuel system Direct fuel injection
Oil system Dry sump
Output
Power output 600–750  hp (447–559  kW)
Torque output 285–330  lb⋅ft (386–447  N⋅m) [1]
Dimensions
Dry weight150  kg (331  lb)

The Lamborghini LE3512 was a naturally-aspirated V12 motor racing engine, designed and developed by Lamborghini, to compete in Formula One. The engine was raced between 1989 and 1993. [2] [3]

Contents

Formula One

Lamborghini's 3.5L V12 Formula One engine, the 3512, at the Lamborghini Museum. Lambo V12 F1.JPG
Lamborghini's 3.5L V12 Formula One engine, the 3512, at the Lamborghini Museum.

Lamborghini made the move to Formula One in 1989 when the FIA outlawed turbocharged engines. [4] Former Scuderia Ferrari designer / engineer Mauro Forghieri was commissioned to design and build a new, 3.5 litre V12 engine for use by the French Larrousse team in 1989. Dubbed the Lamborghini LE3512, [5] (Lamborghini Engineering 3.5 liters 12 cylinders) the 3,493  cc (213.2  cu in ), 80° V12 engine was reported to be the best sounding engine of the new 3.5L naturally aspirated formula. Lamborghini representatives stated at the engines début race, the 1989 Brazilian Grand Prix in Rio de Janeiro, that they chose a lower ranked team to join Formula One (Larrousse was in its third season using Lola chassis') as it was felt at the early stage of its development the 3512 would not be able to do justice to one of the teams usually closer to the front of the grid. Also, the front running teams already had existing engine suppliers in place (McLaren with Honda, Williams with Renault, Benetton with Ford, and Ferrari who made their own V12 engines).

The Lamborghini V12 did impress many in 1989 despite its unreliability, and the engines best result in its first year came thanks to fast but accident-prone Larrousse driver Philippe Alliot when he qualified his Lola LC89 in 5th position for the Spanish Grand Prix at Jerez, only 1.417 seconds slower than the V10 McLaren-Honda of pole winner Ayrton Senna. Alliot then backed up that performance by scoring the engine's first point in Formula One by finishing 6th in the race and setting the 4th fastest race lap in the process. Unfortunately, Alliot's teammate for the second half of 1989, former Ferrari driver Michele Alboreto, never came to grips with either the Lola or the Lamborghini. In his eight races for Larrousse he recorded four DNF's, two failures to pre-qualify, one failure to qualify, and a single 11th-place finish in Portugal.

The Lamborghini V12's best finish came when Larrousse driver Aguri Suzuki finished 3rd in the infamous 1990 Japanese Grand Prix at Suzuka. Its time in Formula One (1989-1993) would prove to be frustrating though as poor reliability became the norm for the engine, despite being used by Grand Prix winning teams such as Lotus and Ligier who could boast driving talent such as Derek Warwick (Lotus - 1990), and Thierry Boutsen (Ligier - 1991). In a 2014 interview, Warwick said of the 3512 that it was "All noise and no go".

In 1993 after four years in Formula One with only one significant result for the engine, Bob Lutz of Lamborghini's parent company Chrysler, did a hand-shake deal with McLaren boss Ron Dennis for the team to test the LE3512 to evaluate its potential as a race winner. [6] [7] McLaren made a modified version of their 1993 race car, the McLaren MP4/8 dubbed the MP4/8B, [6] to test the engine (the test car took three months to modify to fit the longer and heavier V12 [7] ). Testing was completed by triple World Champion Ayrton Senna, and future dual World Champion Mika Häkkinen at both the Silverstone Circuit in England and the Estoril circuit in Portugal. [7] After his first drive of the car at Silverstone, Senna suggested certain changes to Forghieri (a less brutal 'top end' and a fatter mid-range), [7] and he complied with engine power increased from 710 bhp (529 kW; 720 PS) to approximately 750 bhp (559 kW; 760 PS) and both drivers were very impressed despite the engine still being somewhat unreliable (Häkkinen reported a massive engine blow up while testing at Silverstone, [7] though he did manage to lap the 5.226 km (3.260 mi) circuit some 1.4 seconds faster than the teams MP4/8 race car powered by a 680–700 bhp (507–522 kW; 689–710 PS) Ford V8 engine). [6] According to reports, Senna even wanted to race the engine at the Japanese Grand Prix [6] believing that while reliability might be a problem, at least he would be quicker than with the Ford powered race car [7] (ironically Senna would win in both Japan and the last race in Australia with the existing MP4/8). Despite this however, Ron Dennis decided to go with Peugeot V10 engines in 1994 due to a better commercial agreement that would give long term stability to the team and at the end of the 1993 season, the Lamborghini LE3512 was retired from Grand Prix racing [7] after the company was sold by Chrysler to an Indonesian investor group led by Tommy Suharto. [6]

The Lamborghini, which on all cars it powered carried the words "Chrysler powered by Lamborghini" (other than the McLaren MP4/8B which was all virgin white, though the test engines were badged as Chrysler), was one of only five V12 engines used in the naturally aspirated era from 1989–2013, the others being from Ferrari (1989-1995), Honda (1991-1992), Yamaha (1991-1992), and Porsche (1991). The only other 12 cylinder engines in Formula One during this time were disastrous efforts by Life Racing Engines with their W12 engine and Subaru who reintroduced the Flat 12 to the sport, both appearing in the first half of 1990.

LE3512 power output

F1 statistics 1989-1993

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References

  1. ↑ "Natural Aspirations". 25 June 2020.
  2. ↑ "Close Encounter - the story of Lamborghini and Formula 1".
  3. ↑ "Engine Lamborghini • STATS F1".
  4. ↑ Lamborghini 3512 Formula One V12 @ STATSF1
  5. ↑ "Alcune applicazioni storiche - 1989/1993" [Some historical applications] (in Italian). Retrieved 2016-04-06.
  6. 1 2 3 4 5 Rainer Nyberg (2001). "McLaren's brief flirtation with the Chrysler empire". 8w.forix.com. Archived from the original on 2016-03-05. Retrieved 2016-04-08.
  7. 1 2 3 4 5 6 7 "What if Senna had driven a McLaren-Lamborghini in 1994?". www.race2play.com. F1 Racing. 2011-04-04. Archived from the original on 2014-04-27. Retrieved 2016-04-08.
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