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Pontiac Firebird Formula

(1981 model)

Brief specs of 1981 Pontiac Firebird Formula

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 4390 cm3 / 267.9 cu in / 267.9 cu in, 89.5 kW / 120.0 hp / 120.0 hp @ 3600 rpm / 3600 rpm / 3600 rpm, 278.0 N·m / 205.0 lb·ft / 205.0 lb·ft @ 2000 rpm / 2000 rpm / 2000 rpm, automatic 3-speed transmission, rear wheel drive, 158 km/h / 98 mph / 98 mph top speed

units: metric UK US

Basic (general) data

Marque (make)PontiacIssued from1981
ModelFirebird FormulaIssued 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)5080 l / 179.40 cu ft / 179.40 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length5032 mm / 198.1 in / 198.1 inTotal (curb) weight1541 kg / 3397 lb / 3397 lb
Width1854 mm / 73.0 in / 73.0 inDry weight
Height1252 mm / 49.3 in / 49.3 inLoad capacity
Wheelbase2748 mm / 108.2 in / 108.2 inGross (max.) weight
Track front1557 mm / 61.3 in / 61.3 inTowing weight
Track rear1524 mm / 60.0 in / 60.0 inWeight distribution (front)
Ground clearance117 mm / 4.6 in / 4.6 inFuel capacity80 l / 17.5 UK gal / 21.0 US gal
Length/wheelbase ratio1.83  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.97 m2 / 21.2 sq ft / 21.2 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 & headBore88.9 mm / 3.50 in / 3.50 in
Fuelpetrol (gasoline)Stroke88.4 mm / 3.48 in / 3.48 in
Fuel detailsBore/Stroke ratio1.01
Fuel supply1 Ro M2ME carbEngine displacement4390 cm3 / 267.9 cu in / 267.9 cu in
Engine Main bearings5Unitary capacity548.75 cm3/cylinder / 33.487 cu in/cylinder / 33.487 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio8.3 : 1
SumpwetMax. output power89.5 kW / 120.0 hp / 120.0 hp at 3600 rpm / 3600 rpm / 3600 rpm
AspirationnaturalMax. torque278.0 N·m / 205.0 lb·ft / 205.0 lb·ft at 2000 rpm / 2000 rpm / 2000 rpm
Compressor typeN/AMaximum rpm4000 rpm / 4000 rpm / 4000 rpm
IntercoolernoMax. net output (power at the wheels)35.8 kW / 48.0 hp / 48.0 hp (est.)
CoolantwaterSpecific output20.4 kW/l / 0.448 bhp/cu in / 0.448 bhp/cu in
Catalytic converteryesSpecific torque63.3 N·m/l / 0.55 lb·ft/cu in / 0.55 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio2.41

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed158 km/h / 98 mph / 98 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio77.9 kW/ton / 59.0 bhp/ton / 59.0 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
Steeringrecirculating ball VPASSteering details
Turns lock-to-lock2.41Turning circle12.6 m / 41.3 ft / 41.3 ft
Suspension frontIndependent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearLive axle, Semi-elliptic leaf springs, Anti-roll (anti-sway) bar (ARB)
Wheels frontWheels rear
Tyres frontP205/75 R 15Tyres rearP205/75 R 15
Brakes frontventilated discBrakes reardrum
Brake diameter front279 mm / 11.0 in / 11.0 inBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Pontiac Firebird Formula

Infobox

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