The Nissan Gloria Y34 2.5 i 24V T Four, produced between 1999 and 2004, represents a sophisticated iteration of Nissan’s flagship sedan. Positioned as a premium offering within the Y34 Gloria range, this variant combined a turbocharged 2.5-liter inline-six engine with a four-speed automatic transmission and all-wheel drive. It aimed to deliver a blend of performance, luxury, and all-weather capability, primarily targeted at the Japanese domestic market (JDM). The Y34 Gloria, as a whole, continued the tradition of the Gloria nameplate as a large, comfortable sedan, competing with models like the Toyota Crown and Honda Inspire.
Technical Specifications
| Brand | Nissan |
| Model | Gloria |
| Generation | Gloria (Y34) |
| Type (Engine) | 2.5 i 24V T Four (260 Hp) |
| Start of production | 1999 |
| End of production | 2004 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 18 l/100 km (13.1 US mpg) |
| Fuel consumption (extra urban) | 10 l/100 km (23.5 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 210 km/h (130.49 mph) |
| Weight-to-power ratio | 6.6 kg/Hp |
| Weight-to-torque ratio | 5.3 kg/Nm |
| Power | 260 Hp @ 6400 rpm |
| Power per litre | 104.1 Hp/l |
| Torque | 324 Nm @ 2800 rpm (238.97 lb.-ft. @ 2800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 2498 cm3 (152.44 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 86 mm (3.39 in.) |
| Piston Stroke | 71.7 mm (2.82 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Turbocharger |
| Valvetrain | DOHC |
| Kerb Weight | 1710 kg (3769.9 lbs.) |
| Max. weight | 1985 kg (4376.18 lbs.) |
| Max load | 275 kg (606.27 lbs.) |
| Trunk (boot) space (minimum) | 465 l (16.42 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal) |
| Length | 4865 mm (191.54 in.) |
| Width | 1770 mm (69.69 in.) |
| Height | 1465 mm (57.68 in.) |
| Wheelbase | 2800 mm (110.24 in.) |
| Front track | 1510 mm (59.45 in.) |
| Rear track | 1510 mm (59.45 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 4 |
| Gearbox type | Automatic transmission |
| Front suspension | Coil spring |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 215/55 R16 V |
Powertrain & Engine Architecture
The heart of the Y34 2.5 i T Four is the RB25DET engine, a 2.5-liter inline-six cylinder powerplant. This engine is a member of Nissan’s renowned RB series, known for its robustness and tuning potential. The ‘DET’ designation signifies a dual overhead camshaft (DOHC) configuration, multi-point fuel injection, and a turbocharger. The turbocharger, typically a Garrett GT28RS, provides a significant boost in power output compared to naturally aspirated versions of the RB25. The engine utilizes a 9:1 compression ratio. The four-speed automatic transmission, designated as the 4AT, was chosen for its smoothness and ease of use, catering to the Gloria’s luxury-oriented character. While not known for its cutting-edge efficiency, the 4AT provided adequate performance for the vehicle’s weight and intended use.
Driving Characteristics
The 260 horsepower and 324 Nm (238.97 lb-ft) of torque delivered by the RB25DET, coupled with the all-wheel-drive system, resulted in a capable and confident driving experience. Acceleration was brisk, though not overtly sporty, with the turbocharger providing a noticeable surge in power during mid-range acceleration. The automatic transmission, while smooth, could feel somewhat dated compared to more modern transmissions, with relatively long shift times. The all-wheel-drive system provided excellent traction, particularly in inclement weather, enhancing stability and control. Compared to the naturally aspirated 2.5-liter Gloria variants, the T Four offered a substantial performance upgrade. It also differed from the V6-powered models in terms of engine character, with the inline-six offering a smoother, more refined power delivery.
Equipment & Trim Levels
The 2.5 i 24V T Four trim typically included a comprehensive list of standard features befitting a luxury sedan. These included power-adjustable leather seats, woodgrain interior trim, a premium sound system, automatic climate control, and power windows and locks. Optional extras could include a navigation system, sunroof, and upgraded audio components. The interior design emphasized comfort and spaciousness, with a focus on high-quality materials and a refined aesthetic. The exterior styling was characterized by elegant lines and a conservative, yet sophisticated, appearance.
Chassis & Braking
The Y34 Gloria featured a traditional body-on-frame construction, contributing to its robust feel and ride comfort. The suspension system consisted of coil springs and shock absorbers at all four corners. The front suspension utilized a MacPherson strut design, while the rear employed a multi-link setup. Braking duties were handled by ventilated disc brakes on all four wheels, providing adequate stopping power for the vehicle’s weight. An Anti-lock Braking System (ABS) was standard, enhancing safety and control during emergency braking situations. The steering system was a rack-and-pinion setup with hydraulic power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The Nissan Gloria Y34 2.5 i T Four was generally well-received in the Japanese market, praised for its blend of performance, luxury, and all-weather capability. Critics noted the engine’s smooth power delivery and the effectiveness of the all-wheel-drive system. However, some reviewers pointed to the relatively dated automatic transmission and the car’s considerable weight as potential drawbacks. Compared to other trims in the Y34 Gloria lineup, the 2.5 i T Four offered a significant performance advantage over the naturally aspirated models, while remaining more affordable than the higher-end V6 variants. Fuel economy, however, was considerably lower than the non-turbocharged options.
Legacy
The Nissan Gloria Y34 2.5 i T Four has developed a following among enthusiasts, particularly those interested in JDM vehicles. The RB25DET engine remains a popular choice for modification and performance upgrades. While the Y34 Gloria is not as widely recognized internationally as some other JDM classics, it represents a significant chapter in Nissan’s history as a manufacturer of premium sedans. The powertrain, while aging, is generally considered reliable with proper maintenance. Today, well-maintained examples of the Y34 2.5 i T Four are sought after by collectors and enthusiasts, offering a unique blend of Japanese luxury and turbocharged performance.
