The Opel Manta B 2.0 GSi, produced from 1984 to 1988, represented a performance-oriented iteration of the popular Manta B coupe. Positioned as a step up from the base models, the GSi (Grand Sport injection) offered increased power and a more sporting driving experience. This facelifted version of the Manta B, introduced in 1982, featured revised styling and mechanical improvements over the original Manta B launched in 1977. The 2.0 GSi specifically targeted drivers seeking a stylish, relatively affordable, and engaging rear-wheel-drive coupe, filling a niche in the European market that was increasingly moving towards front-wheel-drive designs.
Technical Specifications
| Brand | Opel |
| Model | Manta |
| Generation | Manta B (facelift 1982) |
| Type (Engine) | 2.0 GSi (110 Hp) |
| Start of production | 1984 |
| End of production | 1988 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 10 sec |
| Acceleration 0 – 62 mph | 10 sec |
| Acceleration 0 – 60 mph | 9.5 sec |
| Maximum speed | 192 km/h (119.3 mph) |
| Weight-to-power ratio | 9.7 kg/Hp, 103.3 Hp/tonne |
| Weight-to-torque ratio | 6.6 kg/Nm, 152.1 Nm/tonne |
| Power | 110 Hp @ 5400 rpm |
| Power per litre | 55.6 Hp/l |
| Torque | 162 Nm @ 3400 rpm (119.49 lb.-ft. @ 3400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 20S, 20E |
| Engine displacement | 1979 cm3 (120.77 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 95 mm (3.74 in.) |
| Piston Stroke | 69.8 mm (2.75 in.) |
| Compression ratio | 9.4:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 3.8 l (4.02 US qt | 3.34 UK qt) |
| Coolant | 6.2 l (6.55 US qt | 5.46 UK qt) |
| Kerb Weight | 1065 kg (2347.92 lbs.) |
| Max. weight | 1400 kg (3086.47 lbs.) |
| Max load | 335 kg (738.55 lbs.) |
| Trunk (boot) space – minimum | 380 l (13.42 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Permitted trailer load with brakes (12%) | 1300 kg (2866.01 lbs.) |
| Length | 4443 mm (174.92 in.) |
| Width | 1686 mm (66.38 in.) |
| Height | 1310 mm (51.57 in.) |
| Wheelbase | 2518 mm (99.13 in.) |
| Front track | 1394 mm (54.88 in.) |
| Rear (Back) track | 1389 mm (54.69 in.) |
| Minimum turning circle | 10.5 m (34.45 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front brakes | Disc |
| Rear brakes | Drum |
| Tires size | 195/60 R14 |
| Wheel rims size | 14 |
Powertrain & Engine Architecture
The heart of the Manta B 2.0 GSi was the 20S or 20E inline-four cylinder engine, displacing 1979cc. This engine featured a single overhead camshaft (SOHC) valvetrain operating two valves per cylinder. Crucially, the ‘i’ designation signified Bosch multi-port fuel injection, a significant upgrade over the carbureted engines found in earlier Mantas. The injection system, combined with a compression ratio of 9.4:1, allowed the engine to produce 110 horsepower at 5400 rpm and 162 Nm (119.49 lb-ft) of torque at 3400 rpm. The engine was mounted longitudinally in the front of the vehicle, driving the rear wheels. The 5-speed manual transmission was the only gearbox option available with the 2.0 GSi, providing a more engaging driving experience than the available 4-speed automatic found in lower trims.
Driving Characteristics
The 2.0 GSi offered a noticeable improvement in performance over the lower-powered Manta B variants. The 0-60 mph time of around 9.5 seconds and a top speed of 119.3 mph were respectable for the era. The rear-wheel-drive layout contributed to a balanced feel, although the relatively soft suspension setup meant it wasn’t a true sports car. The 5-speed manual transmission allowed drivers to keep the engine in its sweet spot, maximizing acceleration. Compared to the 1.8-liter models, the 2.0 GSi provided more readily available torque, making it more comfortable for highway cruising and overtaking. While not as nimble as some contemporary front-wheel-drive cars, the Manta B 2.0 GSi offered a unique driving experience characterized by its rear-wheel-drive dynamics and relatively simple mechanicals.
Equipment & Trim Levels
The GSi trim level included several features designed to enhance both comfort and aesthetics. Standard equipment typically included a sports steering wheel, upgraded cloth upholstery, a more comprehensive instrument cluster, and exterior styling cues such as a front spoiler, rear window louvers, and distinctive alloy wheels. Optional extras could include a sunroof, upgraded sound system, and metallic paint finishes. The interior was functional and driver-focused, reflecting the car’s sporting intentions. The dashboard layout was relatively simple, with clearly marked gauges and easy-to-use controls.
Chassis & Braking
The Manta B 2.0 GSi utilized a relatively conventional chassis design. It featured independent suspension at the front with MacPherson struts and a live axle with trailing arms at the rear. Braking was accomplished via disc brakes at the front and drum brakes at the rear. The suspension was tuned for comfort rather than outright handling prowess, providing a reasonably compliant ride. The steering was a recirculating ball system, which offered a degree of feel but lacked the precision of more modern steering technologies. The 195/60 R14 tires provided adequate grip for everyday driving.
Market Reception & Comparison
The Manta B 2.0 GSi was generally well-received by automotive critics as a stylish and affordable coupe. It was praised for its performance, fuel injection system, and distinctive styling. However, some critics noted its somewhat dated chassis design and lack of modern features compared to newer competitors. Compared to the base Manta models, the 2.0 GSi offered a significant performance upgrade, justifying its higher price tag. Against rivals like the Ford Capri and Volkswagen Scirocco, the Manta B 2.0 GSi offered a compelling combination of style, performance, and value. Fuel economy was reasonable for the time, averaging around 25-30 mpg depending on driving conditions.
Legacy
The Opel Manta B 2.0 GSi has become a popular classic car among enthusiasts. Its relatively simple mechanicals and readily available parts make it a relatively easy car to maintain. The 20S/20E engine is known for its durability, although regular maintenance is essential. Today, well-maintained examples of the Manta B 2.0 GSi are sought after by collectors and enthusiasts, representing a nostalgic reminder of a bygone era of rear-wheel-drive coupes. The car’s enduring appeal lies in its distinctive styling, engaging driving experience, and relative affordability.
