Lamborghini V10

Lamborghini V10
Lamborghini V10 engine in a Lamborghini Gallardo
Overview
Manufacturer	Audi Hungaria Motor Kft. & Automobili Lamborghini S.p.A.
Production	2003-present
Combustion chamber
Configuration	90° V10 petrol engine
Displacement	4,961 cc (302.7 cu in), 5,204 cc (317.6 cu in)
Cylinder bore	5.0 L: 82.5 mm (3.25 in), 5.2 L: 84.5 mm (3.33 in)
Piston stroke	92.8 mm (3.65 in)
Cylinder block alloy	Cast aluminium alloy
Cylinder head alloy	Cast aluminium alloy
Valvetrain	4-valves per cylinder, double overhead camshaft
Compression ratio	5.0 L: 11.5:1 5.2 L: 12.5:1
Combustion
Fuel system	5.0 L: Electronic multi-point sequential fuel injection 5.2 L: Electronic multi-point Fuel Stratified Injection
Fuel type	Petrol/Gasoline
Oil system	Dry sump
Cooling system	Water cooled
Output
Power output	5.0 L: 368–390 kW (500–530 PS; 493–523 bhp) 5.2 L: 412–449 kW (560–610 PS; 553–602 bhp) @ 8,250 rpm
Specific power	5.0 L: 78.6 kW (106.9 PS; 105.4 bhp) per litre 5.2 L: 86.3 kW (117.3 PS; 115.7 bhp) per litre
Torque output	5.0 L: 510 N·m (376 lbf·ft) 5.2 L: 560 N·m (413 lbf·ft) @ 6,500 rpm

The Lamborghini V10 is a ninety degree (90°) V10 petrol engine which was developed for the Lamborghini Gallardo automobile, first sold in 2003.

Developed by AUDI AG, for use in the Gallardo, and the first engine developed for Automobili Lamborghini S.p.A. after they were acquired by AUDI AG - part of the Volkswagen Group.

Its crankcase and cylinder block is built at the Audi Hungaria Motor Kft. factory in Győr, Hungary, whilst final assembly is at Sant'Agata, Italy. It has a 90° vee angle and unusually for a production motor a dry sump lubrication system was chosen to keep the center of gravity of the engine low.

There was also some speculation that the engine block of the original 5.0-litre Lamborghini V10 is closely based on the Audi 4.2 FSI V8, which Audi produces for their luxury cars. However, this was denied by AUDI AG, 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 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 by Stefan Reil of Audi's quattro GmbH subsidiary that the new 5.2-litre Lamborghini V10 does share technologies with the Audi 5.2 V10 engine, as is evident by Lamborghini's usage of Audi's Fuel Stratified Injection, and 90 mm cylinder spacing.