Alfa Romeo 690 engine

Last updated
Alfa Romeo 690 engine
Overview
Manufacturer Alfa Romeo
Also calledAlfa Romeo 690RC
Production1996
Layout
Configuration Naturally aspirated 90° V6
Displacement 2,498–2,500 cc (2–3 L; 152–153 cu in)
Cylinder bore 88–93 mm (3.5–3.7 in)
Piston stroke 61.3–68.3 mm (2.41–2.69 in)
Valvetrain 24-valve, DOHC, four-valves per cylinder
Compression ratio 12.5:1
Combustion
Fuel system Fuel injection
Oil system Dry sump
Output
Power output 400–500 hp (298–373 kW) @ 11,500-11,900 rpm
Torque output 217–220  lb⋅ft (294–298  N⋅m) @ 7,700-8000 rpm
Dimensions
Length900 millimetres (35 in)
Width885 millimetres (34.8 in)
Height485 millimetres (19.1 in)
Dry weight 85–110 kg (187–243 lb)

The Alfa Romeo 690 engine is a custom-built, production-based, high-revving, prototype, four-stroke, 2.5-liter, naturally aspirated, V6 racing engine, designed, developed and produced by Alfa Romeo, purpose-built for the 1996 ITC season. It was loosely based on the PRV engine, used in the Lancia Thema 6v. [1] [2]

Applications

References

  1. ↑ Boretti, Alberto A. (October 23, 2009). "Design of the 690 and 420 Touring Car Racing Engines" . SAE Technical Paper Series. Vol. 1. doi:10.4271/2009-01-1683 . Retrieved 2025-06-26– via sae.org.
  2. ↑ Quiniou, Louis (February 8, 2017). "#TouringCarMadness, 1996, Alfa Corse misses it for good…". Historic Motorsport Central. Retrieved 2025-06-26.
  3. ↑ "Alfa Romeo 155 2.5 V6 TI". Stellantis Heritage. Retrieved 2025-06-26.
  4. ↑ "1996 Alfa Romeo 155 V6 TI ITC". RM Sotheby's. Retrieved 2025-06-26.
  5. ↑ Collins, Peter (September 3, 2012). Alfa Romeo 155/156/147 Competition Touring Cars: The Development and Racing History. Veloce Publishing Ltd. ISBN   9781845843427 – via Google Books.[ dead link ]
  6. ↑ Dellis, Nick (April 1, 2016). "1996 Alfa Romeo 155 V6 TI". supercars.net. Retrieved 2025-06-26.
  7. ↑ Melissen, Wouter (30 September 2020). "Alfa Romeo 155 V6 TI DTM". Revs Institute. Retrieved 9 December 2022.
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