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MG MGA Twin Cam

(1958 model)

Brief specs of 1958 MG MGA Twin Cam

2-door 2-seater drophead coupé (convertible coupé)/ fixed-head coupé, petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, DOHC (double overhead camshafts, twin cam), 1588 cm3 / 96.9 cu in / 96.9 cu in, 80.5 kW / 108.0 hp / 108.0 hp @ 6700 rpm / 6700 rpm / 6700 rpm, 142.0 N·m / 104.7 lb·ft / 104.7 lb·ft @ 4500 rpm / 4500 rpm / 4500 rpm, manual 4-speed transmission, rear wheel drive, 183 km/h / 114 mph / 114 mph top speed

units: metric UK US

Basic (general) data

Marque (make)MGIssued from1958
ModelMGA Twin CamIssued until
SerieMGANumber made2111
Model familyBody construction
Model codeBody designation
ManufacturerMGCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typedrophead coupé (convertible coupé)/ fixed-head coupéNumber of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length3962 mm / 156.0 in / 156.0 inTotal (curb) weight952 kg / 2099 lb / 2099 lb
Width1473 mm / 58.0 in / 58.0 inDry weight
Height1270 mm / 50.0 in / 50.0 inLoad capacity
Wheelbase2388 mm / 94.0 in / 94.0 inGross (max.) weight
Track front1238 mm / 48.7 in / 48.7 inTowing weight
Track rear1238 mm / 48.7 in / 48.7 inWeight distribution (front)
Ground clearance152 mm / 6.0 in / 6.0 inFuel capacity46 l / 10.0 UK gal / 12.0 US gal
Length/wheelbase ratio1.66  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.59 m2 / 17.1 sq ft / 17.1 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 ManufacturerMGValves per cylinder2
Engine constructionBore75.4 mm / 2.97 in / 2.97 in
Fuelpetrol (gasoline)Stroke88.9 mm / 3.50 in / 3.50 in
Fuel detailsBore/Stroke ratio0.85
Fuel supply2 SU carburettorsEngine displacement1588 cm3 / 96.9 cu in / 96.9 cu in
Engine Main bearingsUnitary capacity397.00 cm3/cylinder / 24.226 cu in/cylinder / 24.226 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio9.9 : 1
SumpwetMax. output power80.5 kW / 108.0 hp / 108.0 hp at 6700 rpm / 6700 rpm / 6700 rpm
AspirationnaturalMax. torque142.0 N·m / 104.7 lb·ft / 104.7 lb·ft at 4500 rpm / 4500 rpm / 4500 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)24.6 kW / 33.0 hp / 33.0 hp (est.)
CoolantwaterSpecific output50.7 kW/l / 1.114 bhp/cu in / 1.114 bhp/cu in
Catalytic converternoSpecific torque89.4 N·m/l / 0.78 lb·ft/cu in / 0.78 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio4.3

Performance

Acceleration 0-50 mph (80 km/h)9.40 s / 9.40 s / 9.40 sTop (maximal) speed183 km/h / 114 mph / 114 mph
Acceleration 0-60 mph (97 km/h)13.30 s / 13.30 s / 13.30 sPower-to-weight ratio113.5 kW/ton / 86.0 bhp/ton / 86.0 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)41.10 s / 41.10 s / 41.10 sFuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrack & pinionSteering details
Turns lock-to-lock2.75Turning circle
Suspension frontIndependent, Coil springsSuspension rearLive axle, Semi-elliptic leaf springs
Wheels frontWheels rear
Tyres frontDunlop RS4 5.90-15Tyres rearDunlop RS4 5.90-15
Brakes frontdiscBrakes reardisc
Brake diameter front263 mm / 10.4 in / 10.4 inBrake diameter rear263 mm / 10.4 in / 10.4 in
Brakes detailsBraked area

Technical specifications and performance data of MG MGA Twin Cam

Infobox

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