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Pontiac Grand Am

(1973 model)

Brief specs of 1973 Pontiac Grand Am

2-door 5-seater fixed-head coupé, petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 6556 cm3 / 400.1 cu in / 400.1 cu in, 126.8 kW / 170.0 hp / 170.0 hp @ 3600 rpm / 3600 rpm / 3600 rpm, 434.0 N·m / 320.1 lb·ft / 320.1 lb·ft @ 2000 rpm / 2000 rpm / 2000 rpm, automatic 3-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)PontiacIssued from1973
ModelGrand AmIssued until
SerieGrand AmNumber made
Model familyBody construction
Model codeBody designation
ManufacturerPontiacCountryUS

Bodywork

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

Dimensions & Weight

Length5298 mm / 208.6 in / 208.6 inTotal (curb) weight1950 kg / 4299 lb / 4299 lb
Width1974 mm / 77.7 in / 77.7 inDry weight
Height1344 mm / 52.9 in / 52.9 inLoad capacity
Wheelbase2845 mm / 112.0 in / 112.0 inGross (max.) weight
Track front1572 mm / 61.9 in / 61.9 inTowing weight
Track rear1552 mm / 61.1 in / 61.1 inWeight distribution (front)57.0 % / 57.0 % / 57.0 %
Ground clearance107 mm / 4.2 in / 4.2 inFuel capacity95 l / 20.8 UK gal / 25.0 US gal
Length/wheelbase ratio1.86  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.26 m2 / 24.3 sq ft / 24.3 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine (90.0° vee)Total number of valves16
Engine ManufacturerPontiacValves per cylinder2
Engine constructionBore104.7 mm / 4.12 in / 4.12 in
Fuelpetrol (gasoline)Stroke95.2 mm / 3.75 in / 3.75 in
Fuel detailsBore/Stroke ratio1.1
Fuel supply1 Rochester carburettorEngine displacement6556 cm3 / 400.1 cu in / 400.1 cu in
Engine Main bearingsUnitary capacity819.50 cm3/cylinder / 50.009 cu in/cylinder / 50.009 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio8.0 : 1
SumpMax. output power126.8 kW / 170.0 hp / 170.0 hp at 3600 rpm / 3600 rpm / 3600 rpm
AspirationnaturalMax. torque434.0 N·m / 320.1 lb·ft / 320.1 lb·ft at 2000 rpm / 2000 rpm / 2000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)66.2 kW / 88.7 hp / 88.7 hp (est.)
CoolantwaterSpecific output19.3 kW/l / 0.425 bhp/cu in / 0.425 bhp/cu in
Catalytic converterSpecific torque66.2 N·m/l / 0.58 lb·ft/cu in / 0.58 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.08

Performance

Acceleration 0-50 mph (80 km/h)7.40 s / 7.40 s / 7.40 sTop (maximal) speed
Acceleration 0-60 mph (97 km/h)10.30 s / 10.30 s / 10.30 sPower-to-weight ratio87.2 kW/ton / 66.1 bhp/ton / 66.1 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)33.70 s / 33.70 s / 33.70 sFuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time17.50 s / 17.50 s / 17.50 s (top 78 km/h / 48 mph / 48 mph)Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrecirculating ball PASSteering details
Turns lock-to-lock3.3Turning circle
Suspension frontIndependent, Double wishbones, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearLive axle, Trailing arm, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels front7JJ x 15Wheels rear7JJ x 15
Tyres frontUniroyal GR70-15Tyres rearUniroyal GR70-15
Brakes frontdiscBrakes reardrum
Brake diameter front279 mm / 11.0 in / 11.0 inBrake diameter rear241 mm / 9.5 in / 9.5 in
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Pontiac Grand Am

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…

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(...)

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