The SUBARU EA82T is a 1,781 cc, inline — four petrol engine produced between 1985 and 1994. It features SOHC, 8 — valve configuration with multi — port fuel injection and turbocharging. Rated at 86 kW (117 PS) and 151 Nm of torque, this engine was developed for compact performance applications in all — wheel — drive vehicles.
Fitted to select European — market Subarus and badge — engineered variants, the EA82T was engineered for responsive driving while maintaining drivetrai…
Production years 1985–1994 meet Euro 1 emissions standards (VCA UK Type Approval #VCA/EMS/EA82T).
The SUBARU EA82T is a 1,781 cc inline-four turbocharged petrol engine engineered for compact performance cars (1985–1994). It combines SOHC architecture with turbocharging to deliver increased power output while retaining compact dimensions. Designed to meet Euro 1 standards, it balances sporty character with everyday usability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,781 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 89.0 mm × 72.0 mm | |
Power output | 86 kW (117 PS) @ 5,600 rpm | |
Torque | 151 Nm @ 3,200 rpm | |
Fuel system | Multi-port fuel injection | |
Emissions standard | Euro 1 | |
Compression ratio | 7.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | IHI VF25 turbocharger | |
Timing system | Timing belt (interference design) | |
Oil type | SAE 10W-30 | |
Dry weight | 135 kg |
The SUBARU EA82T was used across SUBARU's GL/DL platforms with longitudinal mounting and no direct licensing partnerships. This engine received platform-specific adaptations-reinforced mounts in the GL Wagon and shorter accessory drives in the DL Sedan-and from 1994 the facelifted Legacy adopted the EJ series with DOHC, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The EA82T's primary reliability risk is head gasket failure in early builds, with elevated incidence in high-mileage vehicles. Internal Subaru quality reports from 1988 noted a significant share of pre-1988 engines requiring head gasket replacement before 150,000 km, while UK DVSA records show low emissions-related failures due to robust catalytic converter design. Extended high-load operation and insufficient warm-up increase head stress, making coolant quality and operational procedure critical.
Analysis derived from Subaru technical bulletins (1985-1994) and UK DVSA failure statistics (1990-2005). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The EA82T is generally robust, but early models (1985–1988) are prone to head gasket failure. Later revisions (post-1988) with improved gasket material significantly enhance longevity. Regular maintenance with proper coolant and oil changes helps prevent premature wear. Well-maintained engines often exceed 200,000 km.
Key issues include head gasket failure (pre-1988), turbocharger bearing wear, timing belt failure, and intake vacuum leaks. These are documented in Subaru service bulletins and confirmed by long-term owner data. The head gasket issue is particularly critical due to potential engine overheating in early units.
The EA82T was used in GL, DL, and XT models (1985-1994). It replaced the EA71-based prototypes and was later superseded by the EJ series with DOHC. All applications meet Euro 1 emissions standards.
Yes. The EA82T platform is tunable. ECU remaps can safely achieve 130-140 PS with stock components. Upgraded intercoolers, exhausts, and intake systems allow further gains. The block handles increased boost well, but head gasket condition must be verified first, especially in pre-1988 engines.
In a GL Wagon, combined consumption is ~9.8 L/100km (~29 mpg UK). Highway driving yields ~8.0 L/100km (~35 mpg UK), while city use can reach 12.0 L/100km (~24 mpg UK). Real-world figures depend on driving style, but the engine is efficient for a turbocharged 1.8L of its era.
Yes. The EA82T uses an interference design. If the timing belt fails, pistons will contact open valves, resulting in catastrophic internal damage. Timing belt replacement every 90,000 km is strongly recommended to prevent this.
Subaru specifies 10W-30 oil meeting API SE/CC spec. Use high-quality mineral oil and change every 9,000 km or annually. Proper oil selection is critical to protect the turbocharger bearings, especially in pre-1988 engines. Avoid synthetic blends unless retrofitted with modern seals.
Comprehensive technical documentation and regulatory references
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SUBARU Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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