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Pontiac Firebird Trans Am

(1970 model)

Brief specs of 1970 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), 7467 cm3 / 455.7 cu in / 455.7 cu in, 249.8 kW / 335.0 hp / 335.0 hp @ 4800 rpm / 4800 rpm / 4800 rpm, automatic 3-speed transmission, rear wheel drive, 201 km/h / 125 mph / 125 mph top speed

units: metric UK US

Basic (general) data

Marque (make)PontiacIssued from1970
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)5760 l / 203.41 cu ft / 203.41 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4867 mm / 191.6 in / 191.6 inTotal (curb) weight1450 kg / 3197 lb / 3197 lb
Width1870 mm / 73.6 in / 73.6 inDry weight
Height1276 mm / 50.2 in / 50.2 inLoad capacity
Wheelbase2743 mm / 108.0 in / 108.0 inGross (max.) weight
Track front1556 mm / 61.3 in / 61.3 inTowing weight
Track rear1537 mm / 60.5 in / 60.5 inWeight distribution (front)
Ground clearance120 mm / 4.7 in / 4.7 inFuel capacity
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 constructionBore104.9 mm / 4.13 in / 4.13 in
Fuelpetrol (gasoline)Stroke108.0 mm / 4.25 in / 4.25 in
Fuel detailsBore/Stroke ratio0.97
Fuel supply1 Ro carbEngine displacement7467 cm3 / 455.7 cu in / 455.7 cu in
Engine Main bearings5Unitary capacity933.38 cm3/cylinder / 56.958 cu in/cylinder / 56.958 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio10.2 : 1
SumpMax. output power249.8 kW / 335.0 hp / 335.0 hp at 4800 rpm / 4800 rpm / 4800 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)99.9 kW / 134.0 hp / 134.0 hp (est.)
CoolantwaterSpecific output33.5 kW/l / 0.735 bhp/cu in / 0.735 bhp/cu in
Catalytic converterSpecific torque

Transmission

Transmission typeautomaticNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.06

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed201 km/h / 125 mph / 125 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio231.0 kW/ton / 175.0 bhp/ton / 175.0 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
SteeringSteering details
Turns lock-to-lockTurning circle13.0 m / 42.7 ft / 42.7 ft
Suspension frontIndependent, Coil springsSuspension rearLive axle, Semi-elliptic leaf springs
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontdiscBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Pontiac Firebird Trans Am

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