Pontiac Firebird Trans Am (1970) Specifications

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1981 Pontiac Firebird Trans Am
Performance
Max Power net202.8 PS (200 bhp) (149.1 kW) @ 4000 rpm
Specific Output net40.5 bhp/litre0.66 bhp/cu in
Brake mean effective pressure 1167.1 kPa (169.3 psi)
Max Torque net459.0 Nm (339 ft·lb) (46.8 kg m) @ 2000 rpm
Specific Torque net92.88 Nm/litre
Redline 4000 rpm
Power to weight 123.76 bhp/ton
Max Speed 190 km/h (118 mph)
0-50 mph (80 km/h)
0-60 mph
0-100 km/h
0-100 mph
80-120 km/h (50-70 mph) in top gear
Standing km
Chassis
Doors 2
Engine Location Front
Engine Alignment Longitudinal
Engine code
Aspiration Turbo
Cylinders V8 in 90.0 degrees, vee
Engine Capacity 4.9 litre4942 cc (301.579 cu in) OHV 2 valves per cylinder 16 valves in total
Bore and stroke 101.60 mm x76.20 mm 4 in x3 in
Compression Ratio 7.50:1
Engine Construction Cast Iron Block and Head
Engine Lubrication Wet sump
Engine Manufacturer GM
Main crankshaft bearings 5
Compressor type
Intercooler
Catalytic converter Y
Bore/stroke ratio 1.33
Unitary capacity 617.75 cc per cylinder
Fuel System 1 Ro M4MC carb
Gearbox 3 speed automatic
Drive Type rear wheel drive
Transmission Ratios: Top 1.00
Final Gear Ratio 3.08
Steering Recirculating ball Variable power assist
Brakes Ventilated Disc /Drum-S
Brake size 279 mm front and rear
Braked area
Suspension Independent Wishbone Coil Springs Anti-roll bar rear Live axle Semi-elliptic leaf springs Anti-roll bar
Wheels rear
Tyres P22570 R 15rear P22570 R 15
Steering Wheel Turns (lock to lock) 2.410
Max Turning Circle 12.60 m
Drag Co-efficient
Frontal area Cx
Dimensions and Weight
Overall Length 5032 mm 198.1 in
Overall Width 1854 mm 73 in
Overall Height 1252 mm 49.3 in
Wheelbase 2748 mm 108.2 in
Weight distribution (front)
Track Front 1557 mm 61.3
Ground Clearance 117 mm 4.6 in
Kerb Weight 1616 kg 3563 lb
Equipment
Fluids and Capacities
Fuel Tank 79.6 litres17.5 UK Gal21 US Gal
Fuel Consumption Combined
C02 emissions
Coolant Water
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