Alfa Romeo V6 engine

Alfa Romeo V6 engine
Alfa Romeo 3.0 V6 24V
Overview
Manufacturer	Alfa Romeo
Production	1979–2005
Combustion chamber
Configuration	V6 (60°)
Displacement	2.0 L (1,997 cc (122 cu in)) 2.5 L (2,492 cc (152 cu in)) 2.8 L (2,784 cc (170 cu in)) 3.0 SA L (2,934 cc (179 cu in)) 3.0 L (2,959 cc (181 cu in)) 3.2 L (3,179 cc (194 cu in))
Cylinder block alloy	aluminium alloy
Cylinder head alloy	aluminium alloy
Valvetrain	S/DOHC 60° 2/4-valve
Compression ratio	8.00:1 - 10.50:1
Combustion
Turbocharger	Mitsubishi TD 05H (164) Garrett T25 (GTV,166)
Fuel system	6 Dell'Orto carbs or fuel injection
Management	Bosch L-Jetronic Bosch Motronic
Fuel type	Petrol
Oil system	wet sump
Cooling system	Watercooled
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	375 lb (170 kg) Alfa Romeo SOHC V6
Chronology
Predecessor	Alfa Romeo straight-6
Successor	JTS engine

Alfa Romeo's in-house V6 engine (also known as the Busso V6) design made its initial debut in 1979 in the Alfa 6. Introduced in 2.5 L guise, production engines would eventually range from 2.0 L to 3.2 L displacement. With modifications it is possible to increase engine displacement to 3.8 L (232 cu in). Initially developed in the early 1970s by Ingegnere Giuseppe Busso, the original SOHC 12-valve design employed short push-rods to operate the exhaust valves in a design similar to that of earlier Lancia Fulvia engines. In 1993, the first DOHC version of this engine appeared powering the Alfa Romeo 164. The engine is an aluminium alloy block and head with sodium filled exhaust valves to avoid overheating. The South African market introduced the 3.0 GTV6, predating the international debut of the factory's own 3.0 L engine in 1987. This engine was an Autodelta hand made conversion based on Alfa Sei 2.5 carburated engines enlarged to 93x72mm bore/stroke.

The Alfa Romeo V6 has also been quite popular in kit cars like the Ultima GTR, Hawk HF Series and DAX. and is also used in the Gillet Vertigo sports car. In August 2011 EVO magazine wrote that 'the original Alfa Romeo V6 was the most-glorius sounding six cylinder road engine ever'. and the British Classic & Sports Car magazine noted it as "The best sounding engine, this side of a Maserati V8".

A 2.0 L (1,997 cc (121.9 cu in)) version was introduced in 1983. Both carburettor 132 PS (97 kW; 130 hp) and fuel-injected versions were available from the start.

A 2.0 (1,996 cc ) turbocharged version, derived from the 3.0 L 12v, first with total digital management, was introduced in 1991 in the Alfa Romeo 164 with 210 PS (154 kW; 207 hp). The engine has a 80.0 mm (3.15 in) bore and a 66.2 mm (2.61 in) stroke.

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