Alfa Romeo V6 engine

Alfa Romeo V6 engine
Alfa Romeo 3.0 V6 24V
Overview
Manufacturer	Alfa Romeo (1979-1986) Alfa Lancia Industriale (1987-1991) Fiat Auto (1991-2005)
Designer	Giuseppe Busso
Also called	Alfa Romeo V6 Busso
Production	1979–2005
Layout
Configuration	60° V6
Displacement	2.0 L; 121.8 cu in (1,996 cc) 2.5 L; 152.1 cu in (2,492 cc) 2.8 L; 169.9 cu in (2,784 cc) 2.9 L; 179.0 cu in (2,934 cc) 3.0 L; 180.6 cu in (2,959 cc) 3.2 L; 194.0 cu in (3,179 cc)
Cylinder bore	80 mm (3.15 in) 88 mm (3.46 in) 93 mm (3.66 in)
Piston stroke	66.2 mm (2.61 in) 68.3 mm (2.69 in) 72 mm (2.83 in) 72.6 mm (2.86 in) 78 mm (3.07 in)
Cylinder block material	Aluminium
Cylinder head material	Aluminium
Valvetrain	SOHC/DOHC 60° 2/4 valves x cylinder, respectively
Compression ratio	8.0:1 – 10.5:1
Combustion
Turbocharger	Mitsubishi TD 05H (164)[1] Garrett T25 (GTV,166)[2][3]
Fuel system	6 Dell'Orto carburetors Fuel injection
Management	Bosch L-Jetronic and Motronic
Fuel type	Petrol
Oil system	Wet sump
Cooling system	Water-cooled
Output
Power output	97–184 kW (132–250 PS)
Specific power	66.1 PS (48.6 kW; 65.2 hp)/L-78.6 PS (57.8 kW; 77.5 hp)/L n/a 105.2 PS (77.4 kW; 103.8 hp)/L turbo
Torque output	178–300 N⋅m (131–221 lb⋅ft)
Dimensions
Dry weight	2.5 V6 135 kg (298 lb) (without ancillaries)[4] 375 lb (170 kg) Alfa Romeo SOHC V6[5]
Chronology
Predecessor	Alfa Romeo straight-6
Successor	JTS engine

The Alfa Romeo V6 engine (also called the Busso V6) is a 60° V6 engine made by Alfa Romeo from 1979 to 2005. It was developed in the early 1970s by Giuseppe Busso, and first used on the Alfa 6 with a displacement of 2.5 L (2,492 cc) and a SOHC 12-valve cylinder head. Later versions ranged from 1,996 to 3,179 cc (1.996 to 3.179 L) and had DOHC 24-valve valvetrains. The original design had short pushrods for the exhaust valves in a design similar to earlier Lancia Fulvia engines. The first DOHC version was in the 1993 Alfa Romeo 164, with an aluminium alloy engine block and head with sodium filled exhaust valves.

The Alfa Romeo V6 has been used in kit cars like the Ultima GTR, Hawk HF Series, and DAX,^[6][7][8] as well as the Gillet Vertigo sports car ^[9] and the Lancia Aurelia B20GT Outlaw.^[10] In August 2011 EVO magazine wrote that "the original Alfa Romeo V6 was the most glorious-sounding six-cylinder road engine ever,"^[11] and has been called the "Violin of Arese" or "Alfa's Violin".^[12] The Alfa Romeo V6 engine has also been used in ice resurfacer made by engo Ltd. in Italy.^[13]