Car Specs

1978 Pontiac Firebird Trans Am

Information

Pontiac

Quick Facts

Build Start: 1978

Available in other variants

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Specifications

General

Build Start: 1978
Model Variant: Firebird

Dimensions

Wheelbase: 2746mm
Track/tread (rear): 1532mm
Width: 1864mm
Fuel Tank Capacity: 79litres
Track/tread (front): 1554mm
Length: 4999mm
Height: 1255mm
Kerb weight: 1640kg

Body Details

Body Type: 2+2 seater fixed-head coupé

Engine Details

Crankshaft Bearings: 5
Catalytic converter: Y
Engine Layout: longitudinal
Gearbox: 4 speed manual
Final Drive Ratio: 3.42
Engine Manufacturer: GM
Cylinders: V 8 in 90° vee
Bore × Stroke: 104.68 × 95.25mm
Specific output(Net): 33.5 bhp/litre0.55 bhp/cu in
Specific torque(Net): 66.33 Nm/litre, 0.8 ft·lb/cu3
Sump: wet sumped
Engine Coolant: Water
Aspiration: Normal
Engine Position: front
Top Gear Ratio: 1
Engine Type: naturally aspirated petrol
Engine Code: L78 / W 72
Capacity: 6.6 litre (6558cc)
Bore/stroke ratio: 1.1
Engine Construction: cast iron block & head
Compression Ratio: 8.1:1

Performance

Weight-to-power ratio: 10kg/kW
Power-to-weight ratio: 136.01 PS/tonne (1000 kg)
Drive Wheels: rear wheel drive
maximum power output(Net): 223 PS (220 bhp) (164 kW)at 4000 rpm
maximum torque(Net): 435 Nm (321 ft·lb) (44.4 kgm)at 2800 rpm

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Fuel Consump.

Fuel system: 1 Rochester carburettor

Chassis & Geomtry

Length:Wheelbase Ratio: 1.82

Brakes

Brakes F/R: VeDi/Dr-S
Front Brake Diameter: 279mm
bmep (brake mean effective pressure): 833.5kPa

Wheels & Tyres

Wheel Size Front: 15x8
Tyres Front: 255/70 R 15
Wheel Size Rear: 15x8
Tyres Rear: 255/70 R 15

Other

Unitary Capacity: 819.75cc
Valve Gear: overhead valve (OHV), 2 valves per cylinder, 16 valves in total
Number of doors: 2
RAC rating: 54.4

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