Aston Martin V12 engine

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Aston Martin V12 engine
Aston Martin V12 Engine.jpg
Overview
ManufacturerAston Martin
Production1999-present
Layout
Configuration60° V-12
Displacement5.2–7.3 L (317–445 cu in)
Valvetrain48-valve, DOHC, four-valves per cylinder
Compression ratio9.3:1-11:1
Combustion
TurbochargerTwin-turbocharged (2018-present)
Fuel systemSequential multi-port fuel injection
Oil systemDry sump
Output
Power output420–1,000 hp (313–746 kW)
Torque output400–664 lb⋅ft (542–900 N⋅m)
Dimensions
Dry weight454–625 lb (206–283 kg)
Chronology
PredecessorAston Martin V8 engine

Aston Martin has produced a number of V12 engines. The company did not have its own 12-cylinder engine until 1999, when a 5.9-liter V12 debuted in the Aston Martin DB7; which itself is based on the architecture of the Ford Duratec V6 engine.[1][2][3]

Overview[]

Further information: Ford Duratec V6 engine § 5.9 L V12

Ford's 5.9 L V12 version of its Duratec engine is used in the present Aston Martin lineup.[4] It is best thought of as two 3.0 L (2,967 cc) Duratec V6s mated end to end, albeit with slightly larger main journals. The engine has also received extensive crankshaft modifications, giving the engine uneven firing intervals. The regular Aston Martin V12 uses roller rockers (RFF),[5] and was designed by Ford and Cosworth.[6] [7] [8] Cosworth assembled the V12 engines for a year before Aston Martin took over production.[9] [10] However, Cosworth still casts the heads and blocks.[11] [12] The variant used in the Aston Martin One-77 uses (DLC coated) DAMB cam followers like the later Duratec engines,[13] and is built by Cosworth.[14][15]

RA engine[]

Main article: Cosworth RA

The RA is a 6.5-litre, naturally-aspirated V12 engine, commissioned by Adrian Newey, and co-designed, developed and produced by Cosworth, in partnership and collaboration with Aston Martin, for the Aston Martin Valkyrie sports car. The road-going engine is rated at 1,000 hp (746 kW; 1,014 PS) at 10,500 rpm, with a max torque figure of 740 N⋅m (546 lbf⋅ft) at 7,000 rpm, making it the most powerful naturally-aspirated engine ever fitted and used in a production road car.[16] The engine also revs to a maximum of 11,100 rpm, and has a power density making 114.8 kW (156.1 PS; 153.9 hp) per litre.[17]

Applications[]

Road cars[]

5.2L Twin Turbo[]

5.9L[]

6.5L[]

7.0-7.3L[]

Race cars[]

6.0L[]

References[]

  1. ^ "Engines of Change: Revealing the Power Behind Sports Cars".
  2. ^ "The Origins of Aston Martin's V12".
  3. ^ "Aston Martin's V12 was based on a Ford V6 (And 4 other weird engine cousins)".
  4. ^ "New Mercedes V12 engine will power S-Class and Aston Martin Rapide". Indianautosblog.com. 16 July 2009. Retrieved 2012-01-27.
  5. ^ "Nerd's Eye View: 2014 Aston Martin Vanquish". 26 August 2012.
  6. ^ "Archived copy". Archived from the original on 2006-05-07. Retrieved 2014-09-26.{{cite web}}: CS1 maint: archived copy as title (link)
  7. ^ http://www.astonmartins.com/db7/db7_v12_vantage.htm[dead link]
  8. ^ http://www.astonmartins.com/vanquish/index.html[dead link]
  9. ^ http://www.astonmartins.com/factory/db9_production.htm[dead link]
  10. ^ http://media.ford.com/article_download.cfm?article_id=15421[permanent dead link]
  11. ^ http://www.mahle-powertrain.com/C1257126002DFC22/vwContentByUNID/C807923162DF211EC12578CD00529814/$FILE/Castings%20Flyer%20EN.pdf[permanent dead link]
  12. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-06-30. Retrieved 2014-09-26.{{cite web}}: CS1 maint: archived copy as title (link)
  13. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2014-06-30. Retrieved 2014-09-26.{{cite web}}: CS1 maint: archived copy as title (link)
  14. ^ "Cosworth: Engine of growth".
  15. ^ "Archived copy". Archived from the original on 2014-07-27. Retrieved 2014-09-26.{{cite web}}: CS1 maint: archived copy as title (link)
  16. ^ "Aston Martin Valkyrie V12 turns the hypercar engine up to 11,100".
  17. ^ "Hypercar Engines: Aston Martin Valkyrie V12". 12 December 2018.
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