Mercedes-Benz M297
Overview
ManufacturerMercedes-Benz
Production1997–2016
Layout
ConfigurationNaturally aspirated 60° V12
Displacement
  • 6.9 L; 420.9 cu in (6,898 cc)
  • 7.3 L; 444.9 cu in (7,291 cc)
Cylinder bore
  • 89 mm (3.5 in) (6.9 L)
  • 91.5 mm (3.60 in) (7.3 L)
Piston stroke92.4 mm (3.64 in)
Cylinder block materialAluminium alloy
Cylinder head materialAluminium silicon
ValvetrainDOHC 4 valves x cyl.
Compression ratio
  • 10.5:1
  • 10.0:1 (SL 73 AMG)
Combustion
Fuel systemMulti-point fuel injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output386–559 kW (525–760 PS; 518–750 hp)
Torque output750–900 N⋅m (553–664 lb⋅ft)
Chronology
PredecessorMercedes-Benz M163 engine
SuccessorMercedes-Benz M158 engine
Mercedes-Benz M137 engine (AMG)

The M297 is a V12 engine produced by Mercedes-Benz, from 1997 to 2016.

Design

The M297 is based on the M120 engine but has been tuned by AMG for use in high-performance sports cars. It was offered as a 6.9 L (6,898 cc) version with a bore and stroke of 89 mm × 92.4 mm (3.50 in × 3.64 in), respectively, and was only available in the road-legal version of the CLK GTR.[1] A 7.3 L (7,291 cc) unit was also available featuring a larger bore of 91.5 mm (3.60 in), and was used in Pagani Zonda models until 2016.[2]

Engines

Displacement Power output @ rpm Torque @ rpm Years
6,898 cc (6.9 L; 420.9 cu in) 464 kW (631 PS; 622 hp) 6,800 731 N⋅m (539 lb⋅ft) 5,250 1997-1999
7,291 cc (7.3 L; 444.9 cu in) 386 kW (525 PS; 518 hp) 5,500 750 N⋅m (553 lb⋅ft) 4,000 1997–2001
408 kW (555 PS; 547 hp) 5,900 4,050 2001–2006
442 kW (601 PS; 593 hp) 6,150 760 N⋅m (561 lb⋅ft) 4,000 2004–2008
478 kW (650 PS; 641 hp) 6,200 780–900 N⋅m (575–664 lb⋅ft) 2006–2011
492 kW (669 PS; 660 hp) 2010
498 kW (677 PS; 668 hp) 2009–2010
559 kW (760 PS; 750 hp) 8,000 3,900 2012–2016
588.5 kW (800 PS; 789 hp) 2017


386 kW version

464 kW version

Pagani Zonda

M297, the most powerful iterations replaced the M120 in the Pagani Zonda, powering every single version of the supercar (there were many) built from 2002 onwards.[4]

442 kW version

478 kW version

492 kW version

498 kW version

559 kW version

588.5 kW version

References

  1. ↑ "1998 Mercedes CLK-GTR @ Top Speed". Top Speed. Retrieved 2018-09-02.
  2. ↑ "This Pagani Zonda Was Commissioned For A Nine-Year-Old". CarBuzz. Retrieved 2018-09-02.
  3. ↑ Mercedes-Benz CL-Class
  4. ↑ Radu, Vlad. "The Story of Mercedes' First Production V12 Engine and How It Became Legendary". www.autoevolution.com. Retrieved 2 November 2023.
  5. ↑ "Pagani Automobili | Zonda | Zonda F". 2017-02-02. Archived from the original on 2017-02-02. Retrieved 2018-09-02.
  6. ↑ "Pagani Automobili | Zonda | Zonda Roadster F". 2017-02-02. Archived from the original on 2017-02-02. Retrieved 2018-09-02.
  7. ↑ "Pagani Automobili | Zonda | Zonda Tricolore". 2017-02-02. Archived from the original on 2017-02-02. Retrieved 2018-09-02.
  8. ↑ "Pagani Automobili | Zonda | Zonda Cinque". 2017-02-02. Archived from the original on 2017-02-02. Retrieved 2018-09-02.
  9. ↑ "Pagani Automobili | Zonda | Zonda Cinque Roadster". 2017-02-02. Archived from the original on 2017-02-02. Retrieved 2018-09-02.
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