Aston Martin AM04 engine
| Aston Martin AM04 engine | |
|---|---|
.jpg) | |
| Overview | |
| Manufacturer | Aston Martin |
| Production | 2005–2011 |
| Layout | |
| Configuration | V12, naturally-aspirated, 60° cylinder angle |
| Displacement | 6.0 L (5,993 cc) |
| Cylinder bore | 89 mm (3.50 in) |
| Piston stroke | 79.5 mm (3.13 in) |
| Block material | Aluminium alloy |
| Head material | Aluminium alloy |
| Valvetrain | 48-valve (four-valves per cylinder), DOHC |
| Compression ratio | 10.3:1 |
| Combustion | |
| Fuel system | Electronic fuel injection |
| Management | Pectel ECU |
| Oil system | Dry sump |
| Cooling system | water-cooled |
| Output | |
| Power output | GT1: 600 hp (447 kW; 608 PS) at 6,500 rpm LMP1: 650 hp (485 kW; 659 PS) at 7,000 rpm 650 hp (485 kW; 659 PS) at 7,500 rpm |
| Torque output | GT1: 650 N⋅m (479 lb⋅ft) at 5,500 rpm LMP1: 725 N⋅m (535 lb⋅ft) at 6,250 rpm 770 N⋅m (568 lb⋅ft) at 6,000 rpm |
The Aston Martin AM04 engine is a naturally aspirated, four-stroke, 6.0-liter, V12 racing engine, made by Aston Martin for use in various race cars, from 2005–2011.[1][2] The AM04 used in the race cars is modified from the engine used in the Aston Martin DB9 road car.
Design
The AM04 utilizes a crossflow design in its aluminium alloy cylinder heads to give better engine performance and uses a Pectel engine control unit mated to an Xtrac gearbox.[3] The engine is constructed using forged steel crankshaft with 7 main bearings and steel connecting rod. The firing order of the AM04 is, with A as left bank of the cylinders: 1A, 6B, 5A, 2B, 3A, 4B, 6A, 1B, 2A, 5B, 4A, 3B.[1]
The DBR9 was fitted with two, 31.2 mm (1.23 in) inlet restrictors while the B09/60 (DBR 1-2) was fitted with a 47.8 mm (1.88 in) inlet restrictor.[3][4] The LMP1 cars utilized a larger intake due to using a GT1 production based engine in a prototype.[4]
A concern to the usage of the AM04 in a prototype, was that its cylinder angle of 60°, is tight, which moved the center of gravity of the engine higher.[5]
Applications
References
- ↑ 1.0 1.1 "Aston Martin AM04 (2004) - Racing Cars". tech-racingcars.wikidot.com. Retrieved 2025-05-17.
- ↑ "AM04 Engine". en.aston-martin-club.com. Oct 2, 2014. Retrieved May 24, 2025.
- ↑ 3.0 3.1 "DBR9 – Aston Martin Racing « Aston Martins.com". astonmartins.com. Retrieved 2025-05-25.
- ↑ 4.0 4.1 "Lola Aston Martin LMP1 DBR1-2 (B08/60 & B09/60) « Aston Martins.com". astonmartins.com. Retrieved 2025-05-25.
- ↑ "2008 Lola B08/60 Aston Martin - Images, Specifications and Information". Ultimatecarpage.com. Retrieved 2025-05-25.
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