Reciprocating internal combustion engine
| Aston Martin RB6 | |
|---|---|
| Overview | |
| Manufacturer |  Aston Martin |
| Production | 1959–1960 |
| Layout | |
| Configuration | 95° I-6, naturally-aspirated |
| Displacement | 2.5 L (153 cu in) |
| Cylinder bore | 83 mm (3.3 in) |
| Piston stroke | 90 mm (3.5 in) |
| Valvetrain | 24-valve, DOHC, four-valves per cylinder |
| Compression ratio | 9.8:1 |
| Combustion | |
| Fuel system | Carburetor |
| Oil system | Dry sump |
| Output | |
| Power output | 250–280 hp (186–209 kW) |
| Torque output | 208–235 lb⋅ft (282–319 N⋅m) |
| Dimensions | |
| Dry weight | 203 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. 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.
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.
Applications
References
- "Specifications of 50 famous racing engines up to 1994 - Page 9 - F1technical.net".
- "Engine Aston Martin • STATS F1". Statsf1.com. Retrieved 5 November 2021.
- "Bonhams : 1959 Aston Martin DBR4/250 Formula 1 Monoposto Re-creation Engine no. RB6/2501".
- 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.
- "A journey through Aston Martin's Grand Prix heritage". Aston Martin. Archived from the original on 21 October 2021. Retrieved 5 November 2021.
- "Aston Martin DBR4".
- "1959 Aston Martin DBR4 - Images, Specifications and Information". Ultimatecarpage.com. 18 March 2016. Retrieved 5 November 2021.
- 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) - "The forgotten Aston Martin F1 car | Thank Frankel it's Friday | GRR".
- "1959 Aston Martin DBR4 » Pendine Historic Cars". Pendine.com. 14 October 1984. Retrieved 5 November 2021.