| Manufacturer | Alfa Romeo |
|---|---|
| Production | 1971–1997 |
| Configuration | DOHC 2/4-valve F4 |
| Displacement | 1,186 cc 1,286 cc 1,351 cc 1,490 cc 1,596 cc 1,712 cc |
| Cylinder block alloy | cast-iron |
| Cylinder head alloy | aluminium alloy |
| Fuel system | 1 or 2 carburetor Bosch LE 3.1 Jetronic |
| Fuel type | Petrol |
| Oil system | 4-4,5 L |
| Cooling system | Watercooled |
| Power output | 63 PS (46 kW)-137 PS (101 kW) |
Alfa Romeo developed a water-cooled flat-4 engine for their new Alfasud, introduced in 1971 at the Turin Motor Show.[1]
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The original engine displaced 1.2 L (1,186 cc) with an 80 mm bore and 59 mm stroke and produced between 63 and 77 PS (46 and 57 kW).[2]
Applications:
The engine was stroked (to 64 mm) to create the 1.3 L (1,286 cc) version. This engine produced 75 PS (55 kW).
Applications:
The 1.4 L (1,351 cc) was usually labelled a "1.3" in spite of its displacement. It produced 75–86 PS (55–63 kW) with one or two double-barrel carburettors.[5] It retained the 80 mm bore but used the 1500's 67.2 mm crankshaft.[2]
Applications:
From 1978 until October 1986, the largest member of the family was the 1.5 L (1,490 cc) "1500" (84.0 x 67.2 mm bore and stroke).[2] It was built until 1995 and produced 85 to 105 PS (63 to 77 kW). This is the largest engine to have been installed in Alfasuds.
Applications:
The 1.6 L (1,596 cc) produced 103 PS (76 kW). Bore and stroke is 84.0 x 72.0 mm.[6]
Applications:
In October 1986 the engine was increased in size to 1.7 L (1,712 cc), it was used in the 33 and later Sprints, power was between 105 and 118 PS (77 and 87 kW).[6] Bore and stroke is 87.0 x 72.0 mm.[4]
Applications:
In January 1990 a quad-cam 16-valve version of the venerable boxer was produced; it was the most powerful to date, with 129–137 PS (95–101 kW) with or without catalytic converters. Only available in fuel-injected form, the 1.7 16V was equipped with the Bosch ML 4.1 Motronic system.[6]
The last Alfa Romeo flat-4 was produced in 1997, after a run of 26 years.
Applications:
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