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Opel 2.8 (140 Hp)

General information
Photo of 1975 - 1976 Opel 2.8 (140 Hp) Sedan (146 Hp) - technical specs and dimensions
Power 146 Hp
Torque 223 Nm @ 3600-3800 rpm.
Maximum speed 182 km/h
Brand
Opel
Model
Admiral
Generation
Admiral B
Modification (Engine)
2.8 (146 Hp)
Start of production
1969 year
End of production
1975 year
Powertrain Architecture
Internal Combustion engine
Powertrain architecture classifies the propulsion technology of the vehicle, such as internal combustion, electric (BEV), or hybrid.
Body type
Sedan
Body type refers to the structural design and shape of the vehicle (such as Sedan, Hatchback, SUV, or Coupe).
Seats
5
Seat count specifies the maximum passenger capacity the vehicle is legally approved to transport at once.
Doors
4
Door count indicates the total number of entry points for passengers and cargo access (e.g., 3-door, 5-door).

Opel Admiral Review

Introduced in 1969, the Opel Admiral (generation Admiral B) is a classic Sedan offering the 2.8 (140 Hp) specification. Its propulsion comes from a 2784 cm3 setup, generating a respectable 146 Hp. Featuring Naturally aspirated engine aspiration, it produces a peak torque of 223 Nm @ 3600-3800 rpm. for robust performance. The specific output is rated at 52.4 Hp/l per litre.

Introduced in 1975 - 1976, the Opel 2.8 (140 Hp) brings a high level of engineering and build quality to its segment. Technically satisfying, the model responds to driver expectations with its 146 Hp unit. Compared to its competitors, it stands out in ergonomics and dynamics. In a general assessment, the technical package of the Opel 2.8 (140 Hp) focuses on user satisfaction.
📊 Model Comparison AnalysisThis model has **14 Hp** lower power than 2.8 (146 Hp). This model has **19 Hp** lower power than 2.8 E (160 Hp) Automatic.
FAQ
How many horsepower does Opel 2.8 (140 Hp) have? +
The Opel 2.8 (140 Hp) model is equipped with an engine producing 146 Hp total horsepower.
What is the top speed of Opel 2.8 (140 Hp)? +
According to technical specs, the maximum speed of the vehicle is 182 km/h.
What drivetrain does the Opel 2.8 (140 Hp) have? +
This model transfers power to the road via a Rear wheel drive drivetrain.
Is the Opel 2.8 (140 Hp) a good car? +
Considering the technical specs and market position, the Opel 2.8 (140 Hp) is a highly competitive and desirable model in its class.
Is Opel 2.8 (140 Hp) reliable? +
The Opel 2.8 (140 Hp) is built with high engineering standards and is generally considered a reliable vehicle with proper maintenance.
Performance specs
Fuel Type
Petrol (Gasoline)
Fuel type defines the primary source of energy required by the vehicle’s engine (petrol, diesel, electricity, hybrid, LPG, etc.).
Maximum speed
182 km/h
Maximum speed represents the upper limit of velocity the vehicle can reach, limited by gear ratios, engine power, and aerodynamic resistance.
Weight-to-power ratio
10.2 kg/Hp, 97.7 Hp/tonne
Weight-to-torque ratio
6.7 kg/Nm, 149.2 Nm/tonne
Engine specs
Power
146 Hp
Power per litre
52.4 Hp/l
Power per litre (specific power) measures the engine power relative to its displacement. A higher value indicates advanced efficiency and engineering quality.
Torque
223 Nm @ 3600-3800 rpm.
Torque represents the engine’s rotational force, which determines pulling power. High torque ensures responsive acceleration and stronger uphill performance.
Engine Model Code
28H
Engine displacement
2784 cm3
Engine displacement represents the combined volume of all cylinders. It is a direct indicator of engine size and baseline performance potential.
Number of cylinders
6
Cylinder count represents the number of combustion chambers. More cylinders generally result in smoother operation and a refined engine note.
Engine configuration
Inline
Cylinder bore
92 mm
Piston stroke
69.8 mm
Compression ratio
9.5:1
Fuel injection system
Carburettor
Engine aspiration
Naturally aspirated engine
Aspiration describes how the engine draws air into its cylinders, distinguishing naturally aspirated setups from turbochargers or superchargers.
Valvetrain
SOHC
Engine oil capacity
4.5 l
Space, Volume and weights
Kerb Weight
1495 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. weight
1980 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. load
485 kg
Trunk (boot) space - maximum
475 l
Fuel tank capacity
80 l
Dimensions
Length
4907 mm
Width
1852 mm
Height
1450 mm
Wheelbase
2845 mm
Front track
1505 mm
Rear / Back Track
1505 mm
Ride height (ground clearance)
150 mm
Drag coefficient (Cd)
0.45
Minimum turning circle (turning diameter)
11.8 m
Drivetrain, brakes and suspension specs
Drivetrain Architecture
The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Drive wheel
Rear wheel drive
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Number of gears and type of gearbox
4 gears, manual transmission
Front brakes
Ventilated discs
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Rear brakes
Drum
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Common OBD2 Fault Codes
P0420 🟡 Medium
OPEL P0420 Catalyst System Efficiency Below Threshold
Diagnostic Guide
P0401 🟡 Medium
OPEL P0401 Exhaust Gas Recirculation Flow Insufficient
Diagnostic Guide
P0400 🟡 Medium
OPEL P0400 Exhaust Gas Recirculation Flow Malfunction
Diagnostic Guide
P0340 🟡 Medium
OPEL P0340 Camshaft Position Sensor Circuit Malfunction
Diagnostic Guide
Similar Models
Opel Admiral 2.8 (146 Hp)
Opel Admiral
2.8 (146 Hp)
Opel Admiral 2.8 E (160 Hp) Automatic
Opel Admiral
2.8 E (160 Hp) Automatic
Opel Admiral 2.8 E (165 Hp) Automatic
Opel Admiral
2.8 E (165 Hp) Automatic
Opel Admiral 2.8 S (132 Hp)
Opel Admiral
2.8 S (132 Hp)
User Reviews
J
Jacob X
6 months ago
★★★★☆
Got this car a few months ago. The 146 Hp hp feels powerful on the road. Interior quality is premium for this class. Definitely a solid choice in this price range.
•
J
Jack B.
21 days ago
★★★★☆
Anyone knows the real-world N/A usage?
•
T
Thomas V.
9 days ago
★★★★★
Ordered it immediately after a quick test drive. Engine performance exceeded my expectations. Sound insulation is great, very quiet cabin at high speeds. I highly recommend it, won't disappoint.
•
G
George B.
24 months ago
★★★☆☆
Anyone knows the real-world N/A usage?
•

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