Alfa Romeo 75 Original Generation 1.8 Turbo 1779 cc Engine
The 1779 cc turbocharged four-cylinder powered the Alfa Romeo 75 1.8 Turbo from its 1986 introduction.
Identity and application
This engine record belongs to the Alfa Romeo 75 Original Generation 1.8 Turbo, within the original generation of the Alfa Romeo 75.
The original AR06134 specification displaced 1779 cc and produced 114 kW (155 PS) at 5800 rpm. Installed longitudinally in the four-door saloon, it drove the rear wheels through a rear-mounted transaxle. Alfa Romeo’s technical retrospective identifies this specification separately from subsequent developments.
Construction and forced induction
The water-cooled inline-four used an aluminium block and cylinder head, wet cylinder liners, chain-driven twin overhead camshafts and two valves per cylinder. Bore and stroke were 80 × 88.5 mm. A water-cooled Garrett turbocharger, intercooler and oil cooler supported the turbocharged installation. These details are documented in Alfa Romeo’s retrospective.
Introduction and historical context
Museo Fratelli Cozzi dates the presentation and commercial introduction of the 1.8 Turbo to 21 March 1986. This is a calendar date, rather than a universal model-year designation.
Drawing on its period documentation, the museum explains the commercial appeal of turbocharging a relatively small engine: contemporary promotion emphasised reduced taxation compared with larger-displacement cars, particularly in Italy. The engine therefore belongs to a history of both performance development and market positioning.
The museum also places the 75’s development in the context of financial constraints, describing the retention of Giulietta mechanical and structural foundations beneath redesigned exterior panels. The turbocharged derivative extended that established platform’s appeal.
Later specifications and exclusions
Alfa Romeo dates the revised Turbo Quadrifoglio Verde to April 1990, listing 1779 cc and 121 kW (165 PS). The Evoluzione instead displaced 1762 cc; its specifications and competition outputs must remain separate. Manufacturer reference.
The evidence reviewed does not establish a precise engine-manufacturing location or final production date for every 1779 cc specification. No universal market availability, model-year range or engine production total is asserted here.
Sources
- Alfa Romeo: 30 Jahre Alfa Romeo 75 — historical overview and technical specifications
- Museo Fratelli Cozzi: Alfa 75, Una vera sportiva — introduction and period marketing context
Record scope and verification
Hierarchy: Alfa Romeo → 75 → Original Generation → 1.8 Turbo → 1779 cc engine. The supplied catalogue already contains all required ancestors, so this proposal creates only the engine page.
The supplied parent catalogue entry and Audi RS2 Avant 2.2-litre engine entry were reviewed for hierarchy and path conventions; their full source records were not supplied or inspected. Full parent and comparable-record inspection therefore remains outstanding. No engine-specific image with verified reuse permission was established, so no image or image licence is claimed.
Proposal checks covered the engine level, one immediate variant parent, extensionless path, supplied internal page IDs, permitted block types and temporary source labels. Both cited web pages were opened. These are proposal-level checks, not a site build or automated schema-validation result. No source files were changed, and no generator, quality-assurance script, publishing or deployment operation was run.