The Triumph Dolomite 1500 HL was a popular British sedan produced between 1977 and 1981. It represented a key iteration within the Dolomite range, known for its blend of practicality, reasonable performance, and relatively affordable pricing. Positioned as a mid-range offering, the 1500 HL aimed to provide a comfortable and well-equipped vehicle for family motoring, slotting below the more powerful 1850 models and above the base-level Dolomite. The Dolomite, as a whole, was intended to fill a gap in Triumph’s lineup, offering a modern, four-door saloon to compete with offerings from Ford and Vauxhall in the UK market.
Technical Specifications
| Brand | Triumph |
| Model | Dolomite |
| Generation | Dolomite |
| Type (Engine) | 1500 HL (72 Hp) |
| Start of production | 1977 |
| End of production | 1981 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.6 l/100 km (22.2 US mpg) |
| Fuel consumption (extra urban) | 6.1 l/100 km (38.6 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 13.3 kg/Hp |
| Weight-to-torque ratio | 8.6 kg/Nm |
| Power | 72 Hp @ 5500 rpm |
| Power per litre | 48.2 Hp/l |
| Torque | 111 Nm @ 3000 rpm (81.87 lb.-ft. @ 3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 1493 cm3 (91.11 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 73.7 mm (2.9 in.) |
| Piston Stroke | 87.5 mm (3.44 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Carburettor |
| Engine aspiration | Naturally aspirated |
| Engine oil capacity | 4.5 l (4.76 US qt | 3.96 UK qt) |
| Coolant capacity | 4.8 l (5.07 US qt | 4.22 UK qt) |
| Kerb Weight | 956 kg (2107.62 lbs.) |
| Fuel tank capacity | 57 l (15.06 US gal | 12.54 UK gal) |
| Max. roof load | 50 kg (110.23 lbs.) |
| Permitted trailer load (unbraked) | 762 kg (1679.92 lbs.) |
| Length | 4122 mm (162.28 in.) |
| Width | 1588 mm (62.52 in.) |
| Height | 1372 mm (54.02 in.) |
| Wheelbase | 1454 mm (57.24 in.) |
| Front track | 1352 mm (53.23 in.) |
| Rear track | 1267 mm (49.88 in.) |
| Minimum turning circle | 9.3 m (30.51 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 4 |
| Gearbox type | Manual transmission |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Disc, 222 mm |
| Rear brakes | Drum, 204 mm |
| Steering type | Steering rack and pinion |
Powertrain & Engine Architecture
The heart of the Dolomite 1500 HL was its 1493cc inline-four cylinder engine. Designated as the 1500, this engine utilized a single Zenith-Stromberg carburetor for fuel delivery. The engine featured an overhead valve (OHV) valvetrain, a relatively conventional design for the era. The engine produced 72 horsepower at 5500 rpm and 111 Nm (81.87 lb-ft) of torque at 3000 rpm. The engine was mounted longitudinally in the front of the car, driving the rear wheels. The four-speed manual transmission was the standard offering for the 1500 HL, providing a direct connection between the engine and the drivetrain. The engine’s design prioritized reliability and ease of maintenance over outright performance.
Driving Characteristics
The Dolomite 1500 HL, with its 72 horsepower and four-speed manual gearbox, offered a driving experience best described as adequate. Acceleration was not brisk, and overtaking required careful planning. The gear ratios were spaced to provide reasonable usability in everyday driving conditions, but the engine lacked the punch of the larger 1850 models. The rear-wheel-drive layout provided a balanced feel, and the independent suspension on all four wheels contributed to a comfortable ride, although it wasn’t particularly sporty. Compared to the more powerful Dolomite 1850, the 1500 HL felt noticeably slower, but it offered better fuel economy and a more forgiving driving experience. The manual transmission allowed for greater driver control compared to the optional automatic transmission available on some Dolomite models.
Equipment & Trim Levels
The “HL” designation indicated a higher level of trim compared to the base Dolomite. Standard features included cloth upholstery, a wood-trimmed dashboard, and a comprehensive instrument panel. The 1500 HL also benefited from features like a heated rear window and a more comfortable interior trim. Optional extras included a sunroof, a radio, and upgraded upholstery. The interior was designed with practicality in mind, offering a comfortable and functional space for both driver and passengers. The Dolomite 1500 HL aimed to provide a good balance of comfort and features for its price point.
Chassis & Braking
The Dolomite 1500 HL utilized a body-on-frame construction, which was common for British cars of the era. The front suspension featured independent coil springs, while the rear suspension employed an independent multi-link setup. This suspension design aimed to provide a comfortable ride and good handling characteristics. Braking was provided by disc brakes on the front wheels and drum brakes on the rear. The braking system was adequate for the car’s weight and performance, but it lacked the stopping power of more modern braking systems. The steering was a rack and pinion system, providing precise and responsive steering feel.
Market Reception & Comparison
The Triumph Dolomite 1500 HL was generally well-received by the British motoring press. Critics praised its comfortable ride, practical interior, and reasonable price. However, some reviewers noted its lack of outright performance compared to rivals like the Ford Cortina and Vauxhall Cavalier. Fuel economy was considered good for the time, and the Dolomite 1500 HL proved to be a reliable and durable vehicle. Compared to the Dolomite 1850, the 1500 HL offered a more affordable entry point into the Dolomite range, appealing to buyers who prioritized economy and practicality over performance. The 1500 HL was often seen as a sensible and well-rounded family car.
Legacy
The Triumph Dolomite 1500 HL remains a popular classic car today, appreciated for its classic British styling and relatively straightforward mechanicals. The 1500 engine is known for its reliability, although regular maintenance is essential to keep it running smoothly. Parts availability is generally good, although some components can be difficult to find. The Dolomite 1500 HL represents a significant piece of British automotive history, embodying the design and engineering principles of the 1970s. In the used car market, well-maintained examples of the 1500 HL command a reasonable price, appealing to enthusiasts and collectors alike. The car’s enduring appeal lies in its blend of practicality, charm, and classic British character.
