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Aston Martin RB6 engine

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Aston Martin RB6
Overview
ManufacturerUnited Kingdom Aston Martin
Production1959–1960
Layout
Configuration95° I-6, naturally-aspirated
Displacement2.5 L (153 cu in)
Cylinder bore83 mm (3.3 in)
Piston stroke90 mm (3.5 in)
Valvetrain24-valve, DOHC, four-valves per cylinder
Compression ratio9.8:1[1]
Combustion
Fuel systemCarburetor
Oil systemDry sump
Output
Power output250–280 hp (186–209 kW)
Torque output208–235 lb⋅ft (282–319 N⋅m)
Dimensions
Dry weight203 kg (448 lb)

The Aston Martin RB6 is a 2.5-litre, naturally-aspirated, inline-6 racing engine, developed and designed by Aston Martin for Formula One racing; used between 1959 and 1960.[2] The RB6 also shared the basic double-overhead camshaft straight-6 Aston Martin engine design with its brethren, but sleeved to reduce its capacity to 2.5-litres. Although Tadek Marek's design was a reliable and powerful unit in its 3.7-litre road car form, the reduced capacity racing motor was hard-pressed to cope with the heavy chassis and poor aerodynamics, and frequent engine failures blighted the DBR4's brief racing career. Aston Martin claimed a 280 bhp (210 kW) output for the DBR4's engine. However, it was common practice at the time to overquote engine power, and a more realistic value is closer to 250 bhp (190 kW). This value is still higher than that provided by the Coventry Climax FPF straight-4, used by contemporary manufacturers such as Lotus and Cooper, but the Aston Martin engine weighed appreciably more. The engine drove the rear wheels through a proprietary David Brown gearbox, provided by Aston Martin's owners.[3][4][5]

The DBR5's engine was smaller and lighter. The new engine modifications meant that the power output was finally close to the figure originally claimed by the Aston Martin workshop.[6][7][8][9][10]

Applications

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References

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  1. ^ "Specifications of 50 famous racing engines up to 1994 - Page 9 - F1technical.net".
  2. ^ "Engine Aston Martin • STATS F1". Statsf1.com. Retrieved 5 November 2021.
  3. ^ "Bonhams : 1959 Aston Martin DBR4/250 Formula 1 Monoposto Re-creation Engine no. RB6/2501".
  4. ^ Patrice, Minol (28 May 2018). "The DBR4 Wasn't An F1 Champion, But This Particular Aston Chassis Still Has A Story To Tell • Petrolicious". Petrolicious.com. Retrieved 5 November 2021.
  5. ^ "A journey through Aston Martin's Grand Prix heritage". Aston Martin. Archived from the original on 21 October 2021. Retrieved 5 November 2021.
  6. ^ "Aston Martin DBR4".
  7. ^ "1959 Aston Martin DBR4 - Images, Specifications and Information". Ultimatecarpage.com. 18 March 2016. Retrieved 5 November 2021.
  8. ^ 2 min read (1 January 1970). "1957 Aston Martin DBR4 | Aston Martin". SuperCars.net. Retrieved 5 November 2021.{{cite web}}: CS1 maint: numeric names: authors list (link)
  9. ^ "The forgotten Aston Martin F1 car | Thank Frankel it's Friday | GRR".
  10. ^ "1959 Aston Martin DBR4 » Pendine Historic Cars". Pendine.com. 14 October 1984. Retrieved 5 November 2021.