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MG MGB GT

(1977 model)

Brief specs of 1977 MG MGB GT

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OHV (overhead valve, I-head), 1799 cm3 / 109.8 cu in / 109.8 cu in, 62.6 kW / 83.9 hp / 83.9 hp @ 5500 rpm / 5500 rpm / 5500 rpm, 143.0 N·m / 105.5 lb·ft / 105.5 lb·ft @ 2500 rpm / 2500 rpm / 2500 rpm, manual with overdrive 4-speed transmission, rear wheel drive, 159 km/h / 99 mph / 99 mph top speed

units: metric UK US

Basic (general) data

Marque (make)MGIssued from1977
ModelMGB GTIssued until
SerieMGBNumber made
Model familyBody construction
Model codeBody designation
ManufacturerMGCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2+2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4020 mm / 158.3 in / 158.3 inTotal (curb) weight1108 kg / 2443 lb / 2443 lb
Width1568 mm / 61.7 in / 61.7 inDry weight
Height1295 mm / 51.0 in / 51.0 inLoad capacity
Wheelbase2311 mm / 91.0 in / 91.0 inGross (max.) weight
Track front1245 mm / 49.0 in / 49.0 inTowing weight
Track rear1251 mm / 49.3 in / 49.3 inWeight distribution (front)52.0 % / 52.0 % / 52.0 %
Ground clearance127 mm / 5.0 in / 5.0 inFuel capacity50 l / 11.0 UK gal / 13.2 US gal
Length/wheelbase ratio1.74  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.73 m2 / 18.6 sq ft / 18.6 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders4
Engine Typestraight (inline) Total number of valves8
Engine ManufacturerAustinValves per cylinder2
Engine constructionBore80.3 mm / 3.16 in / 3.16 in
Fuelpetrol (gasoline)Stroke88.9 mm / 3.50 in / 3.50 in
Fuel detailsBore/Stroke ratio0.9
Fuel supply2 SU HIF4 carbsEngine displacement1799 cm3 / 109.8 cu in / 109.8 cu in
Engine Main bearings5Unitary capacity449.75 cm3/cylinder / 27.445 cu in/cylinder / 27.445 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio9.0 : 1
SumpMax. output power62.6 kW / 83.9 hp / 83.9 hp at 5500 rpm / 5500 rpm / 5500 rpm
AspirationnaturalMax. torque143.0 N·m / 105.5 lb·ft / 105.5 lb·ft at 2500 rpm / 2500 rpm / 2500 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)26.9 kW / 36.1 hp / 36.1 hp (est.)
CoolantwaterSpecific output34.8 kW/l / 0.765 bhp/cu in / 0.765 bhp/cu in
Catalytic converternoSpecific torque79.5 N·m/l / 0.70 lb·ft/cu in / 0.70 lb·ft/cu in

Transmission

Transmission typemanual with overdriveNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio0.82
  Final gear (drive) ratio3.91

Performance

Acceleration 0-50 mph (80 km/h)9.30 s / 9.30 s / 9.30 sTop (maximal) speed159 km/h / 99 mph / 99 mph
Acceleration 0-60 mph (97 km/h)14.00 s / 14.00 s / 14.00 sPower-to-weight ratio75.8 kW/ton / 57.4 bhp/ton / 57.4 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time19.10 s / 19.10 s / 19.10 s (top 70 km/h / 44 mph / 44 mph)Fuel consumption, Euro
Standing kilometer time36.40 s / 36.40 s / 36.40 s CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrack & pinionSteering details
Turns lock-to-lockTurning circle10.4 m / 34.1 ft / 34.1 ft
Suspension frontIndependent, Coil springs, Wishbone (A-arm, control arm)Suspension rearLive axle, Semi-elliptic leaf springs
Wheels frontWheels rear
Tyres frontPirelli Cinturato 165 SR 14Tyres rearPirelli Cinturato 165 SR 14
Brakes frontdiscBrakes reardrum
Brake diameter front273 mm / 10.7 in / 10.7 inBrake diameter rear254 mm / 10.0 in / 10.0 in
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of MG MGB GT

Infobox

The Varying Drivers License Requirements Around the World

Minimum driving ages, the number of passengers young drivers can have with them at any time, the times of day that drivers under the age of 18 can drive…

These all vary depending on where young motorists are driving. They vary, even, across the United States.

For instance, in Maine, motorists under the age of 18 aren’t allowed to have any passengers with them as they drive for the first 180 days after they obtain their licenses. In Alabama, motorists under the age of 18 can have one passenger with them.

And that’s just one example of the differences in driving license requirements from one part of the country to the next. The differences are even more pronounced when comparing one country to another. Minimum driving ages vary widely across the world. While most states in the United States allow youngsters to earn their learner’s permits at the age of 15, many other countries require their residents to be much older before they get behind the wheel of a car.

(...)

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