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Buick Riviera Coupé

(1981 model)

Brief specs of 1981 Buick Riviera Coupé

2-door 5-seater fixed-head coupé, petrol (gasoline) 6-cylinder 12-valve V engine, OHV (overhead valve, I-head), 4130 cm3 / 252.0 cu in / 252.0 cu in, 91.7 kW / 123.0 hp / 123.0 hp @ 3800 rpm / 3800 rpm / 3800 rpm, 284.0 N·m / 209.5 lb·ft / 209.5 lb·ft @ 2000 rpm / 2000 rpm / 2000 rpm, automatic 3-speed transmission, front wheel drive, 161 km/h / 100 mph / 100 mph top speed

units: metric UK US

Basic (general) data

Marque (make)BuickIssued from1981
ModelRiviera CoupéIssued until
SerieRivieraNumber made
Model familyBody construction
Model codeBody designation
ManufacturerBuickCountryUS

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length5222 mm / 205.6 in / 205.6 inTotal (curb) weight1666 kg / 3673 lb / 3673 lb
Width2032 mm / 80.0 in / 80.0 inDry weight
Height1377 mm / 54.2 in / 54.2 inLoad capacity
Wheelbase2896 mm / 114.0 in / 114.0 inGross (max.) weight
Track front1506 mm / 59.3 in / 59.3 inTowing weight
Track rear1524 mm / 60.0 in / 60.0 inWeight distribution (front)
Ground clearance130 mm / 5.1 in / 5.1 inFuel capacity88 l / 19.4 UK gal / 23.2 US gal
Length/wheelbase ratio1.8  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.38 m2 / 25.6 sq ft / 25.6 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders6
Engine TypeV engine Total number of valves12
Engine ManufacturerGMValves per cylinder2
Engine constructioncast iron block & headBore100.7 mm / 3.96 in / 3.96 in
Fuelpetrol (gasoline)Stroke86.4 mm / 3.40 in / 3.40 in
Fuel detailsBore/Stroke ratio1.17
Fuel supply1 Rochester M4ME carburettorEngine displacement4130 cm3 / 252.0 cu in / 252.0 cu in
Engine Main bearings4Unitary capacity688.33 cm3/cylinder / 42.004 cu in/cylinder / 42.004 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio8.0 : 1
SumpwetMax. output power91.7 kW / 123.0 hp / 123.0 hp at 3800 rpm / 3800 rpm / 3800 rpm
AspirationnaturalMax. torque284.0 N·m / 209.5 lb·ft / 209.5 lb·ft at 2000 rpm / 2000 rpm / 2000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)36.7 kW / 49.2 hp / 49.2 hp (est.)
CoolantwaterSpecific output22.2 kW/l / 0.488 bhp/cu in / 0.488 bhp/cu in
Catalytic converteryesSpecific torque68.8 N·m/l / 0.60 lb·ft/cu in / 0.60 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears3
Wheel drivefront wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio2.93

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed161 km/h / 100 mph / 100 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio73.8 kW/ton / 55.9 bhp/ton / 55.9 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 time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrecirculating ball PASSteering details
Turns lock-to-lock3Turning circle
Suspension frontSuspension rear
Wheels front6 x 15Wheels rear6 x 15
Tyres frontP205/70 R 15Tyres rearP205/70 R 15
Brakes frontventilated discBrakes reardrum
Brake diameter front267 mm / 10.5 in / 10.5 inBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Buick Riviera Coupé

Infobox

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