Porsche 928 Automatic (1977) fixed-head coupé - technical specifications of 1977 Porsche 928 Automatic

Porsche 928 Automatic

(1977 model)

Brief specs of 1977 Porsche 928 Automatic

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 8-cylinder 16-valve V engine, SOHC (single overhead camshaft), 4474 cm³ / 273.0 cu in / 273.0 cu in, 176.7 kW / 237.0 hp / 237.0 hp @ 5250 rpm / 5250 rpm / 5250 rpm, 363.0 N·m / 267.7 lb·ft / 267.7 lb·ft @ 3600 rpm / 3600 rpm / 3600 rpm, automatic 3-speed transmission, rear wheel drive

Marque (make)	Porsche	Issued from	1977
Model	928 Automatic	Issued until
Serie	928	Number made
Model family		Body construction
Model code		Body designation
Manufacturer	Porsche	Country	DE

Marque (make)

Porsche

Issued from

1977

Model

928 Automatic

Issued until

Serie

928

Number made

Model family

Body construction

Model code

Body designation

Manufacturer

Porsche

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)	4030 l / 142.32 cu ft / 142.32 cu ft	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)

4030 l / 142.32 cu ft / 142.32 cu ft

Max. cargo capacity (volume)

Length	4448 mm / 175.1 in / 175.1 in	Total (curb) weight	1450 kg / 3197 lb / 3197 lb
Width	1836 mm / 72.3 in / 72.3 in	Dry weight
Height	1313 mm / 51.7 in / 51.7 in	Load capacity
Wheelbase	2500 mm / 98.4 in / 98.4 in	Gross (max.) weight
Track front	1552 mm / 61.1 in / 61.1 in	Towing weight
Track rear	1529 mm / 60.2 in / 60.2 in	Weight distribution (front)
Ground clearance		Fuel capacity	86 l / 18.9 UK gal / 22.7 US gal
Length/wheelbase ratio	1.78

Length

4448 mm / 175.1 in / 175.1 in

Total (curb) weight

1450 kg / 3197 lb / 3197 lb

Width

1836 mm / 72.3 in / 72.3 in

Dry weight

Height

1313 mm / 51.7 in / 51.7 in

Load capacity

Wheelbase

2500 mm / 98.4 in / 98.4 in

Gross (max.) weight

Track front

1552 mm / 61.1 in / 61.1 in

Towing weight

Track rear

1529 mm / 60.2 in / 60.2 in

Weight distribution (front)

Ground clearance

Fuel capacity

86 l / 18.9 UK gal / 22.7 US gal

Length/wheelbase ratio

1.78

Drag coefficient (Cd, Cx, Cw)	0.38	Frontal area (A)	2.05 m² / 22.1 sq ft / 22.1 sq ft (est.)
Aerodynamic coefficient (Cd×A)	0.78 m² / 8.4 sq ft / 8.4 sq ft (est.)	Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)	19.4 kW / 25.9 hp / 25.9 hp (est.)

Drag coefficient (Cd, Cx, Cw)

0.38

Frontal area (A)

2.05 m² / 22.1 sq ft / 22.1 sq ft (est.)

Aerodynamic coefficient (Cd×A)

0.78 m² / 8.4 sq ft / 8.4 sq ft (est.)

Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

19.4 kW / 25.9 hp / 25.9 hp (est.)

Engine Code		Total number of cylinders	8
Engine Type	V engine (V8)	Total number of valves	16
Engine Manufacturer	Porsche	Valves per cylinder	2
Engine construction	light alloy block & head	Bore	95.0 mm / 3.74 in / 3.74 in
Fuel	petrol (gasoline)	Stroke	78.9 mm / 3.11 in / 3.11 in
Fuel details		Bore/Stroke ratio	1.2
Fuel supply	Bo fuel inj.	Engine displacement	4474 cm³ / 273.0 cu in / 273.0 cu in
Engine Main bearings	5	Unitary capacity	559.25 cm³/cylinder / 34.128 cu in/cylinder / 34.128 cu in/cylinder
Cam Design	SOHC (single overhead camshaft)	Compression ratio	10.0 : 1
Sump	wet	Max. output power	176.7 kW / 237.0 hp / 237.0 hp at 5250 rpm / 5250 rpm / 5250 rpm
Aspiration	natural	Max. torque	363.0 N·m / 267.7 lb·ft / 267.7 lb·ft at 3600 rpm / 3600 rpm / 3600 rpm
Compressor type	N/A	Maximum rpm
Intercooler	no	Max. net output (power at the wheels)	70.7 kW / 94.8 hp / 94.8 hp (est.)
Coolant	water	Specific output	39.5 kW/l / 0.868 bhp/cu in / 0.868 bhp/cu in
Catalytic converter	no	Specific torque	81.1 N·m/l / 0.71 lb·ft/cu in / 0.71 lb·ft/cu in

Engine Code

Total number of cylinders

Engine Type

V engine (V8)

Total number of valves

Engine Manufacturer

Porsche

Valves per cylinder

Engine construction

light alloy block & head

Bore

95.0 mm / 3.74 in / 3.74 in

Fuel

petrol (gasoline)

Stroke

78.9 mm / 3.11 in / 3.11 in

Fuel details

Bore/Stroke ratio

1.2

Fuel supply

Bo fuel inj.

Engine displacement

4474 cm³ / 273.0 cu in / 273.0 cu in

Engine Main bearings

Unitary capacity

559.25 cm³/cylinder / 34.128 cu in/cylinder / 34.128 cu in/cylinder

Cam Design

SOHC (single overhead camshaft)

Compression ratio

10.0 : 1

Sump

wet

Max. output power

176.7 kW / 237.0 hp / 237.0 hp at 5250 rpm / 5250 rpm / 5250 rpm

Aspiration

natural

Max. torque

363.0 N·m / 267.7 lb·ft / 267.7 lb·ft at 3600 rpm / 3600 rpm / 3600 rpm

Compressor type

N/A

Maximum rpm

Intercooler

Max. net output (power at the wheels)

70.7 kW / 94.8 hp / 94.8 hp (est.)

Coolant

water

Specific output

39.5 kW/l / 0.868 bhp/cu in / 0.868 bhp/cu in

Catalytic converter

Specific torque

81.1 N·m/l / 0.71 lb·ft/cu in / 0.71 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	2.75

Transmission type

automatic

Number of gears

Wheel drive

rear wheel drive

Top gear (drive) ratio

Final gear (drive) ratio

2.75

Acceleration 0-50 mph (80 km/h)	Top (maximal) speed
Acceleration 0-60 mph (97 km/h)	Power-to-weight ratio	165.7 kW/ton / 125.5 bhp/ton / 125.5 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

165.7 kW/ton / 125.5 bhp/ton / 125.5 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	rack & pinion PAS	Steering details
Turns lock-to-lock		Turning circle	11.5 m / 37.7 ft / 37.7 ft
Suspension front	Independent, Coil springs, Wishbone (A-arm, control arm)	Suspension rear	Independent, Coil springs,ST Wishbone (A-arm, control arm)
Wheels front		Wheels rear
Tyres front	215/60 VR 15	Tyres rear	215/60 VR 15
Brakes front	ventilated disc	Brakes rear	ventilated disc
Brake diameter front	282 mm / 11.1 in / 11.1 in	Brake diameter rear	289 mm / 11.4 in / 11.4 in
Brakes details	servo-assisted	Braked area

Engine location

front

Engine alignment

longitudinal

Steering

rack & pinion PAS

Steering details

Turns lock-to-lock

Turning circle

11.5 m / 37.7 ft / 37.7 ft

Suspension front

Independent, Coil springs, Wishbone (A-arm, control arm)

Suspension rear

Independent, Coil springs,ST Wishbone (A-arm, control arm)

Wheels front

Wheels rear

Tyres front

215/60 VR 15

Tyres rear

215/60 VR 15

Brakes front

ventilated disc

Brakes rear

ventilated disc

Brake diameter front

282 mm / 11.1 in / 11.1 in

Brake diameter rear

289 mm / 11.4 in / 11.4 in

Brakes details

servo-assisted

Braked area

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