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Pontiac Firebird Trans Am

(1972 model)

Brief specs of 1972 Pontiac Firebird Trans Am

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 7456 cm3 / 455.0 cu in / 455.0 cu in, 223.7 kW / 300.0 hp / 300.0 hp @ 4000 rpm / 4000 rpm / 4000 rpm, 563.0 N·m / 415.2 lb·ft / 415.2 lb·ft @ 3200 rpm / 3200 rpm / 3200 rpm, manual 4-speed transmission, rear wheel drive, 193 km/h / 120 mph / 120 mph top speed

units: metric UK US

Basic (general) data

Marque (make)PontiacIssued from1972
ModelFirebird Trans AmIssued until
SerieFirebirdNumber made
Model familyBody construction
Model codeBody designation
ManufacturerPontiacCountryUS

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

Length4867 mm / 191.6 in / 191.6 inTotal (curb) weight1676 kg / 3695 lb / 3695 lb
Width1864 mm / 73.4 in / 73.4 inDry weight
Height1280 mm / 50.4 in / 50.4 inLoad capacity
Wheelbase2743 mm / 108.0 in / 108.0 inGross (max.) weight
Track front1567 mm / 61.7 in / 61.7 inTowing weight
Track rear1534 mm / 60.4 in / 60.4 inWeight distribution (front)
Ground clearance117 mm / 4.6 in / 4.6 inFuel capacity64 l / 14.1 UK gal / 16.9 US gal
Length/wheelbase ratio1.77  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.03 m2 / 21.8 sq ft / 21.8 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 (V8)Total number of valves16
Engine ManufacturerGMValves per cylinder2
Engine constructioncast iron block & headBore105.3 mm / 4.15 in / 4.15 in
Fuelpetrol (gasoline)Stroke106.9 mm / 4.21 in / 4.21 in
Fuel detailsBore/Stroke ratio0.99
Fuel supply1 Ro 7042273 carbEngine displacement7456 cm3 / 455.0 cu in / 455.0 cu in
Engine Main bearings5Unitary capacity932.00 cm3/cylinder / 56.874 cu in/cylinder / 56.874 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio8.4 : 1
SumpwetMax. output power223.7 kW / 300.0 hp / 300.0 hp at 4000 rpm / 4000 rpm / 4000 rpm
AspirationnaturalMax. torque563.0 N·m / 415.2 lb·ft / 415.2 lb·ft at 3200 rpm / 3200 rpm / 3200 rpm
Compressor typeN/AMaximum rpm4700 rpm / 4700 rpm / 4700 rpm
IntercoolernoMax. net output (power at the wheels)89.5 kW / 120.0 hp / 120.0 hp (est.)
CoolantwaterSpecific output30.0 kW/l / 0.659 bhp/cu in / 0.659 bhp/cu in
Catalytic converterSpecific torque75.5 N·m/l / 0.66 lb·ft/cu in / 0.66 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.42

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed193 km/h / 120 mph / 120 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio179.0 kW/ton / 135.6 bhp/ton / 135.6 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 ballSteering details
Turns lock-to-lock4.6Turning circle12.1 m / 39.7 ft / 39.7 ft
Suspension frontIndependent, Wishbone (A-arm, control arm), Lower trailing link, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearRadius arms, Semi-elliptic leaf springs, Anti-roll (anti-sway) bar (ARB)
Wheels front7 x 15Wheels rear7 x 15
Tyres frontF60x15Tyres rearF60x15
Brakes frontdiscBrakes reardrum
Brake diameter front278 mm / 10.9 in / 10.9 inBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Pontiac Firebird Trans Am

Infobox

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