Pontiac Bonneville Hardtop (1977) sedan (saloon) - technical specifications of 1977 Pontiac Bonneville Hardtop

Pontiac Bonneville Hardtop

(1977 model)

Brief specs of 1977 Pontiac Bonneville Hardtop

4-door 5-seater sedan (saloon), petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 4955 cm³ / 302.4 cu in / 302.4 cu in, 100.7 kW / 135.0 hp / 135.0 hp @ 4000 rpm / 4000 rpm / 4000 rpm, 339.0 N·m / 250.0 lb·ft / 250.0 lb·ft @ 1600 rpm / 1600 rpm / 1600 rpm, automatic 3-speed transmission, rear wheel drive

Marque (make)	Pontiac	Issued from	1977
Model	Bonneville Hardtop	Issued until
Serie	Bonneville	Number made
Model family		Body construction
Model code		Body designation
Manufacturer	Pontiac	Country	US

Marque (make)

Pontiac

Issued from

1977

Model

Bonneville Hardtop

Issued until

Serie

Bonneville

Number made

Model family

Body construction

Model code

Body designation

Manufacturer

Pontiac

Country

Base platform		Number of doors	4
Bodywork type	sedan (saloon)	Number of seats	5
Bodywork designer		Cargo capacity (volume)
Passenger space (volume)		Max. cargo capacity (volume)

Base platform

Number of doors

Bodywork type

sedan (saloon)

Number of seats

Bodywork designer

Cargo capacity (volume)

Passenger space (volume)

Max. cargo capacity (volume)

Length	5443 mm / 214.3 in / 214.3 in	Total (curb) weight	1640 kg / 3616 lb / 3616 lb
Width	1923 mm / 75.7 in / 75.7 in	Dry weight
Height	1351 mm / 53.2 in / 53.2 in	Load capacity
Wheelbase	2944 mm / 115.9 in / 115.9 in	Gross (max.) weight
Track front	1567 mm / 61.7 in / 61.7 in	Towing weight
Track rear	1542 mm / 60.7 in / 60.7 in	Weight distribution (front)
Ground clearance	142 mm / 5.6 in / 5.6 in	Fuel capacity	80 l / 17.6 UK gal / 21.1 US gal
Length/wheelbase ratio	1.85

Length

5443 mm / 214.3 in / 214.3 in

Total (curb) weight

1640 kg / 3616 lb / 3616 lb

Width

1923 mm / 75.7 in / 75.7 in

Dry weight

Height

1351 mm / 53.2 in / 53.2 in

Load capacity

Wheelbase

2944 mm / 115.9 in / 115.9 in

Gross (max.) weight

Track front

1567 mm / 61.7 in / 61.7 in

Towing weight

Track rear

1542 mm / 60.7 in / 60.7 in

Weight distribution (front)

Ground clearance

142 mm / 5.6 in / 5.6 in

Fuel capacity

80 l / 17.6 UK gal / 21.1 US gal

Length/wheelbase ratio

1.85

Drag coefficient (Cd, Cx, Cw)		Frontal area (A)	2.21 m² / 23.8 sq ft / 23.8 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)

2.21 m² / 23.8 sq ft / 23.8 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	101.6 mm / 4.00 in / 4.00 in
Fuel	petrol (gasoline)	Stroke	76.4 mm / 3.01 in / 3.01 in
Fuel details		Bore/Stroke ratio	1.33
Fuel supply	1 Rochester M2MC 200 carburettor	Engine displacement	4955 cm³ / 302.4 cu in / 302.4 cu in
Engine Main bearings	5	Unitary capacity	619.38 cm³/cylinder / 37.797 cu in/cylinder / 37.797 cu in/cylinder
Cam Design	OHV (overhead valve, I-head)	Compression ratio	8.2 : 1
Sump		Max. output power	100.7 kW / 135.0 hp / 135.0 hp at 4000 rpm / 4000 rpm / 4000 rpm
Aspiration	natural	Max. torque	339.0 N·m / 250.0 lb·ft / 250.0 lb·ft at 1600 rpm / 1600 rpm / 1600 rpm
Compressor type	N/A	Maximum rpm	4400 rpm / 4400 rpm / 4400 rpm
Intercooler	no	Max. net output (power at the wheels)	40.3 kW / 54.0 hp / 54.0 hp (est.)
Coolant	water	Specific output	20.3 kW/l / 0.447 bhp/cu in / 0.447 bhp/cu in
Catalytic converter	yes	Specific torque	68.4 N·m/l / 0.60 lb·ft/cu in / 0.60 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

101.6 mm / 4.00 in / 4.00 in

Fuel

petrol (gasoline)

Stroke

76.4 mm / 3.01 in / 3.01 in

Fuel details

Bore/Stroke ratio

1.33

Fuel supply

1 Rochester M2MC 200 carburettor

Engine displacement

4955 cm³ / 302.4 cu in / 302.4 cu in

Engine Main bearings

Unitary capacity

619.38 cm³/cylinder / 37.797 cu in/cylinder / 37.797 cu in/cylinder

Cam Design

OHV (overhead valve, I-head)

Compression ratio

8.2 : 1

Sump

Max. output power

100.7 kW / 135.0 hp / 135.0 hp at 4000 rpm / 4000 rpm / 4000 rpm

Aspiration

natural

Max. torque

339.0 N·m / 250.0 lb·ft / 250.0 lb·ft at 1600 rpm / 1600 rpm / 1600 rpm

Compressor type

N/A

Maximum rpm

4400 rpm / 4400 rpm / 4400 rpm

Intercooler

Max. net output (power at the wheels)

40.3 kW / 54.0 hp / 54.0 hp (est.)

Coolant

water

Specific output

20.3 kW/l / 0.447 bhp/cu in / 0.447 bhp/cu in

Catalytic converter

yes

Specific torque

68.4 N·m/l / 0.60 lb·ft/cu in / 0.60 lb·ft/cu in

Transmission type	automatic	Number of gears	3
Wheel drive	rear wheel drive	Top gear (drive) ratio	1
		Final gear (drive) ratio	2.41

Transmission type

automatic

Number of gears

Wheel drive

rear wheel drive

Top gear (drive) ratio

Final gear (drive) ratio

2.41

Acceleration 0-50 mph (80 km/h)	Top (maximal) speed
Acceleration 0-60 mph (97 km/h)	Power-to-weight ratio	82.3 kW/ton / 62.4 bhp/ton / 62.4 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

Acceleration 0-60 mph (97 km/h)

Power-to-weight ratio

82.3 kW/ton / 62.4 bhp/ton / 62.4 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 VPAS	Steering details
Turns lock-to-lock	3.5	Turning circle
Suspension front	Independent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)	Suspension rear	Live axle,Trail Radius arms, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels front		Wheels rear
Tyres front	GR78 x 15	Tyres rear	GR78 x 15
Brakes front	ventilated disc	Brakes rear	drum
Brake diameter front	279 mm / 11.0 in / 11.0 in	Brake diameter rear
Brakes details	servo-assisted	Braked area

Engine location

front

Engine alignment

longitudinal

Steering

recirculating ball VPAS

Steering details

Turns lock-to-lock

3.5

Turning circle

Suspension front

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

Suspension rear

Live axle,Trail Radius arms, Coil springs, Anti-roll (anti-sway) bar (ARB)

Wheels front

Wheels rear

Tyres front

GR78 x 15

Tyres rear

GR78 x 15

Brakes front

ventilated disc

Brakes rear

drum

Brake diameter front

279 mm / 11.0 in / 11.0 in

Brake diameter rear

Brakes details

servo-assisted

Braked area

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