Pontiac Firebird Trans Am (1985) fixed-head coupé - technical specifications of 1985 Pontiac Firebird Trans Am

Pontiac Firebird Trans Am

(1985 model)

Brief specs of 1985 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), 5013 cm³ / 305.9 cu in / 305.9 cu in, 152.9 kW / 205.0 hp / 205.0 hp @ 4400 rpm / 4400 rpm / 4400 rpm, 365.0 N·m / 269.2 lb·ft / 269.2 lb·ft @ 3200 rpm / 3200 rpm / 3200 rpm, manual 5-speed transmission, rear wheel drive, 208 km/h / 129 mph / 129 mph top speed

Marque (make)	Pontiac	Issued from	1985
Model	Firebird Trans Am	Issued until
Serie	Firebird	Number made
Model family		Body construction
Model code		Body designation
Manufacturer	Pontiac	Country	US

Marque (make)

Pontiac

Issued from

1985

Model

Firebird Trans Am

Issued until

Serie

Firebird

Number made

Model family

Body construction

Model code

Body designation

Manufacturer

Pontiac

Country

Base platform		Number of doors	2
Bodywork type	fixed-head coupé	Number of seats	2+2
Bodywork designer		Cargo capacity (volume)
Passenger space (volume)		Max. cargo capacity (volume)

Base platform

Number of doors

Bodywork type

fixed-head coupé

Number of seats

2+2

Bodywork designer

Cargo capacity (volume)

Passenger space (volume)

Max. cargo capacity (volume)

Length	4872 mm / 191.8 in / 191.8 in	Total (curb) weight	1480 kg / 3263 lb / 3263 lb
Width	1840 mm / 72.4 in / 72.4 in	Dry weight
Height	1260 mm / 49.6 in / 49.6 in	Load capacity
Wheelbase	2565 mm / 101.0 in / 101.0 in	Gross (max.) weight
Track front	1540 mm / 60.6 in / 60.6 in	Towing weight
Track rear	1565 mm / 61.6 in / 61.6 in	Weight distribution (front)
Ground clearance	115 mm / 4.5 in / 4.5 in	Fuel capacity	61 l / 13.4 UK gal / 16.1 US gal
Length/wheelbase ratio	1.9

Length

4872 mm / 191.8 in / 191.8 in

Total (curb) weight

1480 kg / 3263 lb / 3263 lb

Width

1840 mm / 72.4 in / 72.4 in

Dry weight

Height

1260 mm / 49.6 in / 49.6 in

Load capacity

Wheelbase

2565 mm / 101.0 in / 101.0 in

Gross (max.) weight

Track front

1540 mm / 60.6 in / 60.6 in

Towing weight

Track rear

1565 mm / 61.6 in / 61.6 in

Weight distribution (front)

Ground clearance

115 mm / 4.5 in / 4.5 in

Fuel capacity

61 l / 13.4 UK gal / 16.1 US gal

Length/wheelbase ratio

1.9

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)

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 Code		Total number of cylinders	8
Engine Type	V engine	Total number of valves	16
Engine Manufacturer	GM	Valves per cylinder	2
Engine construction	cast iron block & head	Bore	95.0 mm / 3.74 in / 3.74 in
Fuel	petrol (gasoline)	Stroke	88.4 mm / 3.48 in / 3.48 in
Fuel details		Bore/Stroke ratio	1.07
Fuel supply	MPFi	Engine displacement	5013 cm³ / 305.9 cu in / 305.9 cu in
Engine Main bearings	5	Unitary capacity	626.63 cm³/cylinder / 38.239 cu in/cylinder / 38.239 cu in/cylinder
Cam Design	OHV (overhead valve, I-head)	Compression ratio	9.5 : 1
Sump		Max. output power	152.9 kW / 205.0 hp / 205.0 hp at 4400 rpm / 4400 rpm / 4400 rpm
Aspiration	natural	Max. torque	365.0 N·m / 269.2 lb·ft / 269.2 lb·ft at 3200 rpm / 3200 rpm / 3200 rpm
Compressor type	N/A	Maximum rpm	5000 rpm / 5000 rpm / 5000 rpm
Intercooler	no	Max. net output (power at the wheels)	61.2 kW / 82.0 hp / 82.0 hp (est.)
Coolant	water	Specific output	30.5 kW/l / 0.670 bhp/cu in / 0.670 bhp/cu in
Catalytic converter	yes	Specific torque	72.8 N·m/l / 0.64 lb·ft/cu in / 0.64 lb·ft/cu in

Engine Code

Total number of cylinders

Engine Type

V engine

Total number of valves

Engine Manufacturer

Valves per cylinder

Engine construction

cast iron block & head

Bore

95.0 mm / 3.74 in / 3.74 in

Fuel

petrol (gasoline)

Stroke

88.4 mm / 3.48 in / 3.48 in

Fuel details

Bore/Stroke ratio

1.07

Fuel supply

MPFi

Engine displacement

5013 cm³ / 305.9 cu in / 305.9 cu in

Engine Main bearings

Unitary capacity

626.63 cm³/cylinder / 38.239 cu in/cylinder / 38.239 cu in/cylinder

Cam Design

OHV (overhead valve, I-head)

Compression ratio

9.5 : 1

Sump

Max. output power

152.9 kW / 205.0 hp / 205.0 hp at 4400 rpm / 4400 rpm / 4400 rpm

Aspiration

natural

Max. torque

365.0 N·m / 269.2 lb·ft / 269.2 lb·ft at 3200 rpm / 3200 rpm / 3200 rpm

Compressor type

N/A

Maximum rpm

5000 rpm / 5000 rpm / 5000 rpm

Intercooler

Max. net output (power at the wheels)

61.2 kW / 82.0 hp / 82.0 hp (est.)

Coolant

water

Specific output

30.5 kW/l / 0.670 bhp/cu in / 0.670 bhp/cu in

Catalytic converter

yes

Specific torque

72.8 N·m/l / 0.64 lb·ft/cu in / 0.64 lb·ft/cu in

Transmission type	manual	Number of gears	5
Wheel drive	rear wheel drive	Top gear (drive) ratio	0.63
		Final gear (drive) ratio	3.7

Transmission type

manual

Number of gears

Wheel drive

rear wheel drive

Top gear (drive) ratio

0.63

Final gear (drive) ratio

3.7

Acceleration 0-50 mph (80 km/h)	Top (maximal) speed	208 km/h / 129 mph / 129 mph
Acceleration 0-60 mph (97 km/h)	Power-to-weight ratio	138.5 kW/ton / 104.9 bhp/ton / 104.9 bhp/ton
Acceleration 0-100 km/h	Fuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)	Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in top	Fuel consumption, Mixed (combined)
Standing ¼mile time	Fuel consumption, Euro
Standing kilometer time	CO₂ emissions
	Range

Acceleration 0-50 mph (80 km/h)

Top (maximal) speed

208 km/h / 129 mph / 129 mph

Acceleration 0-60 mph (97 km/h)

Power-to-weight ratio

138.5 kW/ton / 104.9 bhp/ton / 104.9 bhp/ton

Acceleration 0-100 km/h

Fuel consumption, City (urban)

Acceleration 0-100 mph (160 km/h)

Fuel consumption, Road (extra-urban)

Acceleration 80-120 km/h (50-70 mph) in top

Fuel consumption, Mixed (combined)

Standing ¼mile time

Fuel consumption, Euro

Standing kilometer time

CO₂ emissions

Range

Engine location	front	Engine alignment	longitudinal
Steering	recirculating ball PAS	Steering details
Turns lock-to-lock	2.2	Turning circle
Suspension front	Independent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)	Suspension rear	Live axle,LongLeadArms, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels front		Wheels rear
Tyres front	P245/50 R 15	Tyres rear	P245/50 R 15
Brakes front	ventilated disc	Brakes rear	drum
Brake diameter front	267 mm / 10.5 in / 10.5 in	Brake diameter rear
Brakes details	servo-assisted	Braked area

Engine location

front

Engine alignment

longitudinal

Steering

recirculating ball PAS

Steering details

Turns lock-to-lock

2.2

Turning circle

Suspension front

Independent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)

Suspension rear

Live axle,LongLeadArms, Coil springs, Anti-roll (anti-sway) bar (ARB)

Wheels front

Wheels rear

Tyres front

P245/50 R 15

Tyres rear

P245/50 R 15

Brakes front

ventilated disc

Brakes rear

drum

Brake diameter front

267 mm / 10.5 in / 10.5 in

Brake diameter rear

Brakes details

servo-assisted

Braked area

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