Mercedes-Benz Indy V8 engine

Last updated
Ilmor 265-D (1994) [1]
Mercedes-Benz IC108 (1995-2000)
Overview
Manufacturer Ilmor-Mercedes
Production1994-2000
Layout
Configuration 72°-82° [2] V-8
Displacement 2.65  L (161.7  cu in)
Cylinder bore 91  mm (3.6  in)
Piston stroke 50.9  mm (2.0  in)
Cylinder block material Aluminum
Cylinder head materialAluminum
Valvetrain 16-valve to 32-valve, OHV/DOHC, [3] two-valves per cylinder to four-valves per cylinder
Compression ratio 12.4:1
Combustion
Turbocharger Garrett single-turbo
Fuel system Electronic fuel injection
Fuel type Methanol
Oil system Dry sump
Cooling system Liquid cooling
Output
Power output 800–1,000  hp (597–746  kW)
Torque output 345–540  lb⋅ft (468–732  N⋅m)
Dimensions
Dry weight 95–123  kg (209–271  lb) [4]
Chronology
Predecessor Mercedes-Benz 500I engine

The Mercedes-Benz Indy V8 engine, known as the Ilmor 265-D (1994), [5] and later the Mercedes-Benz IC108 (1995-2000), is a powerful, turbocharged, 2.65-liter, Indy car racing V-8 engine, specially designed, developed, and built by Ilmor, in partnership and collaboration with Mercedes-Benz, to compete in the CART series; between 1994 and 2000.

Contents

Background

The 265-D engine was introduced for the 1994 season, which replaced the 265-C, although some of the smaller teams still ran the "C" throughout 1994. Without badging support, the engines were referred to simply as the "Ilmor-C" and the "Ilmor-D". This engine was said to produce about 30 hp (22 kW) more than the Ford-Cosworth XB used at the time. [6]

In 1995, Mercedes-Benz became the badging manufacturer for the Ilmor Indy car engines. The engine continued to be a strong contender on the CART circuit. In 1996, the open-wheel "split" began between CART and the IRL. Ilmor primarily was a provider for CART-based teams, and did not provide engines for any full-time IRL teams. At the 1996 Indy 500, the Ilmor Mercedes-Benz D was used by Galles Racing, and finished second, the powerplant's one and only start in an IRL-sanctioned race. When the IRL switched to normally-aspirated engines for 1997, the 265s were no longer permitted in the IRL and the Indy 500, and from that point on raced in the CART series exclusively.

Applications

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References

  1. ↑ "8W - What? - Penske-Mercedes PC23 500i". 8w.forix.com.
  2. ↑ "Review: 'Beast' Recalls Drama Of Designing Legendary Race Engine". EngineLabs. October 8, 2014.
  3. ↑ "Unintended consequences: The backstory Of Indy's most remarkable engine". May 15, 2020.
  4. ↑ "engine weights". www.gomog.com.
  5. ↑ "Mercedes Indy Engine". Speedway Motors Museum of American Speed.
  6. ↑ Bennett, Nigel (October 15, 2013). Inspired to Design: – F1 cars, Indycars & racing tyres: the autobiography of Nigel Bennett. Veloce Publishing Ltd. ISBN   9781845845360 – via Google Books.
  7. ↑ "1994 Penske PC23 - Spec Sheet | The Dawn Treader Customer Portal". customers.dtperformanceltd.co.uk.
  8. ↑ Bennett, Nigel (15 October 2013). Inspired to Design: – F1 cars, Indycars & racing tyres: the autobiography of Nigel Bennett. Veloce Publishing Ltd. ISBN   9781845845360 . Retrieved 8 November 2021– via Google Books.
  9. ↑ Magazines, Hearst (8 June 1995). "Popular Mechanics". Hearst Magazines. Retrieved 8 November 2021– via Google Books.
  10. ↑ Bentley, Karen; Gluck, Jeff (4 June 2015). The Unsers. Infobase Learning. ISBN   9781438142678 . Retrieved 8 November 2021– via Google Books.
  11. ↑ Magazines, Hearst (8 June 1996). "Popular Mechanics". Hearst Magazines. Retrieved 8 November 2021– via Google Books.
  12. ↑ Bennett, Nigel (15 October 2013). Inspired to Design: – F1 cars, Indycars & racing tyres: the autobiography of Nigel Bennett. Veloce Publishing Ltd. ISBN   9781845845360 . Retrieved 8 November 2021– via Google Books.
  13. ↑ "1997 Penske PC26 Mercedes Specifications". Ultimatecarpage.com.
  14. ↑ "Penske PC-27 Mercedes-Benz 1998". GTPlanet. 29 March 2017.
  15. ↑ "MARCH 86C : 1987 INDIANAPOLIS 500 WINNER : AL UNSER SR". Pensjeautomall.com. Retrieved 8 November 2021.
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