Car Specs

1981 Pontiac Firebird Trans Am

Information

Pontiac

Quick Facts

Build Start: 1981

Available in other variants

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Specifications

General

Build Start: 1981
Model Variant: Firebird

Dimensions

Wheelbase: 2748mm
Track/tread (rear): 1524mm
Width: 1854mm
Ground clearance: 117mm
Kerb weight: 1616kg
Track/tread (front): 1557mm
Length: 5032mm
Height: 1252mm
Fuel Tank Capacity: 79.6litres

Body Details

Body Type: 2+2 seater fixed-head coupé

Engine Details

Bore × Stroke: 101.6 × 76.2mm
Sump: wet sumped
Engine Coolant: Water
Aspiration: Turbo
Engine Layout: longitudinal
Top Gear Ratio: 1
Engine Type: turbocharged petrol
Cylinders: V 8 in 90° vee
Capacity: 4.9 litre (4942cc)
Bore/stroke ratio: 1.33
Engine Construction: cast iron block & head
Compression Ratio: 7.5:1
Crankshaft Bearings: 5
Catalytic converter: Y
Engine Position: front
Gearbox: 3 speed automatic
Final Drive Ratio: 3.08
Engine Manufacturer: GM

Performance

Maximum RPM: 4000rpm
Maximum Speed: 190km/h
Weight-to-power ratio: 10.84kg/kW
Power-to-weight ratio: 125.48 PS/tonne (1000 kg)
Drive Wheels: rear wheel drive

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Fuel Consump.

Fuel system: 1 Ro M4MC carb

Chassis & Geomtry

Turns Lock-to-Lock: 2.410
Front Suspension: I.W.CS.ARB.
Turning Circle: 12.60 m
Rear suspension: LA.SE.ARB.
Length:Wheelbase Ratio: 1.83

Brakes

Brakes F/R: VeDi/Dr-S
Braked area: 2106 cm2
bmep (brake mean effective pressure): 1167.1kPa
Front Brake Diameter: 279mm

Wheels & Tyres

Tyres Front: P225/70 R 15
Tyres Rear: P225/70 R 15

Other

Valve Gear: overhead valve (OHV), 2 valves per cylinder, 16 valves in total
Specific output(SAEnet): 40.5 bhp/litre0.66 bhp/cu in
Specific torque(SAEnet): 92.88 Nm/litre, 1.12 ft·lb/cu3
RAC rating: 51.2
maximum power output(SAEnet): 203 PS (200 bhp) (149 kW)at 4000 rpm
maximum torque(SAEnet): 459 Nm (339 ft·lb) (46.8 kgm)at 2000 rpm
Unitary Capacity: 617.75cc
Number of doors: 2

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