The Toyota Allex 1.8i, produced between 2001 and 2006, was a compact hatchback primarily aimed at the Japanese domestic market (JDM). Positioned as a slightly more sporty and upscale alternative to the Toyota Corolla, the Allex offered a range of engine options, with the 1.8i variant representing the performance-oriented end of the spectrum. This model, equipped with the 2ZZ-GE engine, provided a compelling blend of power and practicality within the compact car segment. It shared its platform with the Toyota Celica, contributing to its more dynamic driving characteristics compared to its Corolla sibling.
Technical Specifications
| Brand | Toyota |
| Model | Allex |
| Generation | Allex |
| Type (Engine) | 1.8 i (190 Hp) |
| Start of production | 2001 |
| End of production | 2006 |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6 kg/Hp, 166.7 Hp/tonne |
| Weight-to-torque ratio | 6.3 kg/Nm, 157.9 Nm/tonne |
| Power | 190 Hp @ 7600 rpm |
| Power per litre | 105.8 Hp/l |
| Torque | 180 Nm @ 6800 rpm (132.76 lb.-ft. @ 6800 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 2ZZ-GE |
| Engine displacement | 1795 cm3 (109.54 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 85 mm (3.35 in.) |
| Compression ratio | 11.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, VVTL-i |
| Engine oil capacity | 3.7 l (3.91 US qt | 3.26 UK qt) |
| Coolant | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1140-1150 kg (2513.27 – 2535.32 lbs.) |
| Max. weight | 1425 kg (3141.59 lbs.) |
| Max load | 275-285 kg (606.27 – 628.32 lbs.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4175 mm (164.37 in.) |
| Width | 1695 mm (66.73 in.) |
| Height | 1470 mm (57.87 in.) |
| Wheelbase | 2600 mm (102.36 in.) |
| Front track | 1480 mm (58.27 in.) |
| Rear (Back) track | 1460 mm (57.48 in.) |
| Ride height (ground clearance) | 160 mm (6.3 in.) |
| Minimum turning circle (turning diameter) | 10.2 m (33.46 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Coil spring, Torsion |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 175/70 R14 |
| Wheel rims size | 5.5J x 14 |
Powertrain & Engine Architecture
The heart of the Allex 1.8i is the 2ZZ-GE engine, a 1.8-liter (1795 cc) inline-four cylinder powerplant. This engine is notable for its high-revving nature and advanced technology, including Toyota’s Variable Valve Timing and Lift-intelligent (VVTL-i) system. VVTL-i allows for both variable valve timing and variable valve lift, optimizing engine performance across a wider RPM range. The 2ZZ-GE utilizes multi-port fuel injection and a compression ratio of 11.5:1, contributing to its 190 horsepower output at 7600 rpm and 180 Nm (132.76 lb-ft) of torque at 6800 rpm. The engine’s transverse mounting and front-wheel-drive configuration were standard for vehicles in this class. The Allex 1.8i exclusively came with a 6-speed manual transmission, designed to fully exploit the engine’s powerband.
Driving Characteristics
The 1.8i variant of the Allex offered a noticeably more engaging driving experience than lower-spec models. The 6-speed manual transmission allowed drivers to keep the engine in its optimal power range, resulting in brisk acceleration. While not a dedicated sports car, the Allex 1.8i provided responsive handling and a willing engine. The gear ratios were closely spaced, encouraging frequent shifting to maintain momentum. Compared to the more economical engine options available in the Allex lineup, the 1.8i prioritized performance over fuel efficiency. The lighter curb weight (1140-1150 kg) further enhanced its agility.
Equipment & Trim Levels
The Allex 1.8i typically came with a reasonably well-equipped interior, reflecting its position as a higher-end trim level. Standard features included power windows, power locks, and air conditioning. Interior upholstery was typically cloth, with options for upgraded materials available. The dashboard layout was functional and driver-focused, with clear instrumentation. Optional extras could include a sunroof, upgraded audio system, and alloy wheels. The Allex aimed to provide a comfortable and practical interior without sacrificing a sporty aesthetic.
Chassis & Braking
The Allex 1.8i utilized an independent McPherson strut suspension in the front and a coil spring torsion beam suspension in the rear. This setup provided a good balance between ride comfort and handling. Ventilated disc brakes were fitted to the front wheels, while the rear wheels featured solid disc brakes. Anti-lock Braking System (ABS) was standard, enhancing safety. The chassis was designed to be relatively lightweight, contributing to the car’s overall agility. Stabilizer bars were included to reduce body roll during cornering.
Market Reception & Comparison
The Toyota Allex 1.8i was generally well-received in the Japanese market, praised for its sporty handling and powerful engine. Critics noted that it offered a more engaging driving experience than the standard Corolla, while still maintaining Toyota’s reputation for reliability. Compared to other 1.8-liter hatchbacks of the time, the Allex 1.8i stood out for its high-revving engine and well-tuned suspension. Fuel economy was respectable, but not as impressive as the lower-powered engine options. The Allex 1.8i appealed to drivers who wanted a practical and reliable hatchback with a sporty edge.
Legacy
The Toyota Allex 1.8i, while not widely exported outside of Japan, has gained a following among enthusiasts for its unique combination of performance and practicality. The 2ZZ-GE engine is known for its durability and potential for modification. Today, well-maintained examples of the Allex 1.8i are sought after by collectors and enthusiasts. The powertrain, while requiring regular maintenance, is generally considered reliable. The Allex 1.8i represents a unique chapter in Toyota’s history, showcasing the company’s ability to create engaging and sporty compact cars.
