Developed by Lamborghini, for use in the Gallardo, and the first engine developed for Lamborghini after they were acquired by Audi – part of the Volkswagen Group.
This engine has its origins in two concept cars made by Lamborghini, the 1988 P140 and the 1995 Calà. Both were equipped with engines having a 3.9-litre displacement. In the early 2000s, Lamborghini resumed the project and the engine was redesigned by increasing its displacement.
There was also some speculation that the engine block of the original 5.0-litre Lamborghini V10 was closely based on the Audi 4.2 FSI V8, which Audi produces for its luxury cars. However, this was denied by Audi, in their official documentation for their 5.2 FSI V10 engine, as used in the Audi S6 and Audi S8 – the Lamborghini 5.0 V10 has a cylinder bore spacing of 88 millimetres (3.46 in) between centres, whereas the Audi 5.2 V10 cylinder bore spacing is 90 millimetres (3.54 in), the same as the Audi 4.2 FSI V8.[3] The cylinder heads use the four valves per cylinder layout favoured by the Italian firm, rather than the five valve per cylinder variation formerly favoured by the German members of Volkswagen Group – including Audi and Volkswagen Passenger Cars. It was later confirmed that the new 5.2-litre Lamborghini V10 is mechanically identical to the Audi 5.2 V10 engine,[4] as is evident by Lamborghini's usage of Audi's Fuel Stratified Injection, and 90 mm cylinder spacing.
5.0 — 4,961 cubic centimetres (302.7 cu in); bore x stroke: 82.5 by 92.8 millimetres (3.25 in × 3.65 in). Rod length is 154mm. (Rod/stroke ratio:1.65), 496.1 cc per cylinder; compression ratio: 11.5:1[5]
5.2 — 5,204 cubic centimetres (317.6 cu in); bore x stroke: 84.5 by 92.8 millimetres (3.33 in × 3.65 in). Rod length is 154mm. (Rod/stroke ratio:1.65), 520.4 cc per cylinder; compression ratio: 12.5:1[5]
cylinder block and crankcase
5.0 — cast aluminium alloy with integrated liners with eutectic alloy; 88 mm (3.46 in) cylinder bore spacing;[6] forged steel crankshaft with 18° split crankpins to create even 72° firing intervals[5]
5.2 — cast aluminium alloy; 90 mm cylinder bore spacing; forged steel crankshaft with non-split crankpins creating uneven firing intervals of 90° and 54°[5]
5.0 — two linked common rail fuel distributor rails, electronic sequential multi-pointindirect fuel injection with 10 intake manifold-sited fuel injectors
5.2 — fully demand-controlled and returnless; fuel tank mounted low pressure fuel pump, Fuel Stratified Injection (FSI):[6] two inlet camshaft double-cam driven single-piston high-pressure injection pumps maintaining pressure in the two stainless steel common rail fuel distributor rails, ten combustion chamber sited direct injection solenoid-controlled sequential fuel injectors[5]
ignition system and engine management
mapped direct ignition with centrally mounted spark plugs and ten individual direct-acting single spark coils; two Lamborghini LIE electronic engine control unit (ECUs) working on the 'master and slave' concept due to the high revving nature of the engine
exhaust system
5.0 — five-into-one exhaust manifolds for each cylinder bank
5.2 — 2-1-2 branch exhaust manifold per cylinder bank[5] to minimise reverse pulsation of expelled exhaust gasses
5.0 power and torque outputs and applications
368 kilowatts (500 PS; 493 bhp) at 7,800 rpm; 510 newton-metres (376 lbf⋅ft) at 4,500 rpm (80% available from 1,500 rpm) — Gallardo 2003-2005
382 kilowatts (519 PS; 512 bhp) at 8,000 rpm; 510 newton-metres (376 lbf⋅ft) at 4,250 rpm — Gallardo SE, Spyder, and 2006-2008
390 kilowatts (530 PS; 523 bhp) at 8,000 rpm; 510 newton-metres (376 lbf⋅ft) at 4,250 rpm — Gallardo Superleggera
224 kilowatts (305 PS; 300 bhp) at 7,000 rpm; 400 newton-metres (295 lbf⋅ft) at 6,500 rpm — Gallardo Super GT - 2008-2009
404.5 kilowatts (550 PS; 542 bhp) at 8,000 rpm; 540 newton-metres (398 lbf⋅ft) at 6,500 rpm — Gallardo LP550/2, Balboni, Spyder, Bicolore, AD Personam, Singapore Limited Edition, Super Trofeo, Tricolore, Hong Kong 20th Anniversary Edition, Malaysia Limited Edition, India Serie Speciale, Indonesia Limited Edition, Edizione Tecnica - 2010-2013
(The Lamborghini V10 has also had a placement in the Audi R8, RS6, S8 and S6. The 5.2 V10 used in the S6 and S8 is different in several important aspects, namely a less robust crankshaft with a split pin design, cast aluminum pistons, and a traditional wet-sump oiling system, as well as differences in the valvetrain - all of which, combined, result in the much higher RPM red line and specific power output of the Gallardo and R8)[9]
^Audi 5.2 litre V10 FSI engine. Service Training - Self-Study Programme (SSP 376 ed.). Neckarsulm, Germany: AUDI AG. June 2006. The (Audi) V10 belongs to the next generation of Audi V-engines, all of which have a 90-degree included angle and a spacing of 90 millimetres between cylinder centres. Compared to the engine in the Lamborghini Gallardo, which has a spacing of 88 millimetres between cylinder centres, the Audi engine has several new features in key areas.
