Toyota MR2 Supercharged
The Toyota MR2 Supercharged was the forced-induction version of the first-generation AW11 MR2. It used the 4A-GZE 1.6-liter supercharged and intercooled inline-four, a transverse mid-engine layout, rear-wheel drive, and either a five-speed manual or four-speed automatic transmission depending on market and specification.
Model Overview
The AW11 Toyota MR2 was the first-generation MR2. The supercharged version added the 4A-GZE engine, a Toyota SC12 Roots-type supercharger, air-to-air intercooling, revised engine calibration, and related chassis and braking changes compared with naturally aspirated AW11 MR2 models.
Toyota introduced the supercharged AW11 MR2 in Japan for the 1986 model update. In the United States, the MR2 Supercharged was sold for the 1988 and 1989 model years. Output, trim, roof configuration, equipment, and emissions details vary by market and exact model year.
Core Specifications
| Model | Toyota MR2 Supercharged |
|---|---|
| Generation | First generation MR2 / AW11 |
| Chassis / Platform Reference | AW11 |
| Model Years | 1986–1989 in Japan; 1988–1989 in the United States |
| Market | Japan, North America, and selected other markets depending on specification |
| Body Style | Two-door coupe; T-bar roof available on many supercharged models |
| Layout | Transverse mid-engine, rear-wheel drive |
| Engine | 4A-GZE supercharged inline-four |
| Displacement | 1,587 cc |
| Bore x Stroke | 81.0 mm x 77.0 mm |
| Valve Train | DOHC, 16 valves |
| Block / Head | Cast-iron block, aluminum cylinder head |
| Compression Ratio | 8.0:1 |
| Induction | Supercharged and intercooled |
| Factory Supercharger | Toyota SC12 Roots-type supercharger with electromagnetic clutch |
| Intercooler | Air-to-air intercooler |
| Horsepower | 145 hp at 6,400 rpm in U.S.-market period references |
| Torque | 140 lb-ft at 4,000 rpm in U.S.-market period references |
| Transmission | 5-speed manual or 4-speed automatic, depending on market and model |
| Drive System | Rear-wheel drive |
| Wheelbase | 91.3 in |
| Length | 155.5 in, based on period U.S.-market test specification |
| Width | 65.6 in, based on period U.S.-market test specification |
| Height | 48.6 in, based on period U.S.-market test specification |
| Curb Weight | Approximately 2,500–2,650 lb, depending on roof, transmission, equipment, market, and source |
Specification figures vary by market, roof configuration, transmission, equipment, and source. Period U.S.-market testing of a 1988 MR2 Supercharged with five-speed manual listed curb weight at 2,604 lb.
Engineering Character
4A-GZE Engine
The MR2 Supercharged used the 1,587 cc 4A-GZE inline-four. The engine was based on Toyota’s 4A twin-cam 16-valve architecture and added forced induction, lower compression, revised pistons, intercooling, and supercharger-specific calibration.
SC12 Supercharger
The 4A-GZE used Toyota’s SC12 Roots-type supercharger. The supercharger was belt-driven from the crankshaft and used an electromagnetic clutch so that the supercharger could engage under acceleration or heavier engine load.
Mid-Engine Layout
The AW11 MR2 used a transverse mid-engine layout with rear-wheel drive. The engine and transaxle were mounted behind the passenger compartment and ahead of the rear axle line.
Chassis And Brake Changes
Toyota’s supercharged AW11 update included chassis reinforcement and braking-system changes relative to earlier naturally aspirated models, including larger brake components and related suspension revisions depending on market and model year.
Model-Year Notes
| 1986 | Toyota introduced the supercharged 4A-GZE AW11 MR2 in Japan as part of an updated MR2 range. The update added the supercharged engine, air-to-air intercooler, chassis changes, and T-bar roof availability. |
|---|---|
| 1987 | Continued Japanese-market AW11 MR2 Supercharged production. Market-specific trim, roof, emissions, and equipment details vary by exact specification. |
| 1988 | First U.S.-market model year for the MR2 Supercharged. U.S. references commonly list 145 hp at 6,400 rpm and 140 lb-ft at 4,000 rpm. |
| 1989 | Final U.S.-market model year for the AW11 MR2 Supercharged. The first-generation MR2 was replaced by the second-generation SW20 MR2 for the following generation. |
Performance Reference
| Period Tested Model | 1988 Toyota MR2 Supercharged, five-speed manual |
|---|---|
| 0–60 mph | 6.5 seconds in Car and Driver period testing |
| Quarter Mile | 15.0 seconds at 91 mph in Car and Driver period testing |
| Top Speed | 130 mph in Car and Driver period testing |
| EPA Fuel Economy | 23 mpg city / 28 mpg highway in the cited 1988 U.S.-market test specification |
Performance figures reflect a specific tested U.S.-market car and should not be treated as universal for all AW11 MR2 Supercharged examples.
Related AW11 Models
| MR2 Supercharged | AW11 model using the 4A-GZE supercharged and intercooled inline-four. |
|---|---|
| MR2 Naturally Aspirated | AW11 model using naturally aspirated 4A-GE-family engines, depending on market and model year. |
| AW10 MR2 | Lower-output first-generation MR2 variant in some markets using a smaller-displacement engine. It should be documented separately from AW11 models. |
| SW20 MR2 | Second-generation MR2 platform introduced after the AW11 generation, with different body structure, suspension design, engine options, and market positioning. |
Modern Enthusiast Relevance
- Factory supercharged 4A-GZE 1.6-liter inline-four
- Toyota SC12 Roots-type supercharger with electromagnetic clutch
- Air-to-air intercooling
- Transverse mid-engine layout
- Rear-wheel drive
- Five-speed manual availability
- AW11 first-generation MR2 chassis
- Short U.S.-market Supercharged production period
- Distinct separation from naturally aspirated AW11 MR2 models
Comparable Cars
Pontiac Fiero GT
Contemporary mid-engine American two-seat coupe using a naturally aspirated V6 engine and rear-wheel drive.
Honda CRX Si
Lightweight late-1980s Japanese sport compact with a naturally aspirated inline-four, front-wheel drive, and two-seat packaging in U.S.-market form.
Mazda MX-5 Miata NA
Early 1990s lightweight Japanese two-seat sports car using a naturally aspirated inline-four, front-engine layout, and rear-wheel drive.
Toyota MR2 Turbo SW20
Later second-generation MR2 performance model using a turbocharged 3S-GTE engine, mid-engine layout, and rear-wheel drive.
Buying And Ownership Notes
Evaluation should confirm exact market, model year, roof configuration, transmission, original supercharged specification, engine condition, supercharger function, intercooler plumbing, cooling-system condition, timing-belt service history, gearbox operation, clutch condition on manual cars, corrosion, prior accident repair, and previous modification quality.
The MR2 Supercharged should be distinguished from naturally aspirated AW11 models and from later SW20 MR2 models. Engine, transmission, cooling, trim, and body details can vary by market, and some surviving cars may have engine swaps or non-factory forced-induction conversions.
MSC Taxonomy
Summary
The Toyota MR2 Supercharged is the forced-induction version of the first-generation AW11 MR2. It used the 1,587 cc 4A-GZE supercharged and intercooled inline-four, a Toyota SC12 Roots-type supercharger, rear-wheel drive, and a transverse mid-engine layout. U.S.-market examples were sold for the 1988 and 1989 model years, with factory output commonly listed at 145 hp and 140 lb-ft.