For Sale

  • 1987 Porsche 928 S4 Marine Blue

    For Sale, 1987 Porsche 928 S4 Marine Blue

    1987 Porsche 928 Series 4 Automatic

    171,000 miles, with Full Porsche Service History to 145,000 and Dr A (belts) and myself since then.

    Marine blue with blue leather seats and matching blue carpets.

    £4250, Warminster

    Read more...

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Porsche 928 Engine information PDF Print E-mail
Engine specifications across the European models

M28.01/02
928

M28.09/10
928

M28.11/12
928S

M28.21/22
928S2

M28.41/42
928S4

M28.41SP
928CS/SE

M28.47
928GT

 M28.49/50
928GTS

Cylinders

8

8

8

8

8

8

8

 8

Valves

16

16

16

16

32

32

32

 32

Capacity

4474

4474

4664

4664

4957

4957

4957

 5397

Stroke

78.9

78.9

78.9

78.9

78.9

78.9

78.9

 85.9

Bore

95

95

97

97

100

100

100

 100

Compression Ratio

8.5:1

10.0:1

10.0:1

10.4:1

10.0:1

10.0:1

10.0:1

 10.4:1

Max Power

240

240

300

310

320

320

330

 350

at engine speed

5500

5250

5900

5900

6000

6000

6200

 5700

Max Torque

250

271

263

263

317

317

317

 369

at engine speed

3600

4000

4500

4100

3000

3000

4100

 4250

Cut Off Speed

6300

6200

6500

6400

6600

6600

6800

 6600

Idle Speed

 

 

 

700

675

675

775

 675

Dry Weight kg

245

245

261

261

264

264

264

 266

 

Design

8 cylinder, 4 stroke, internal combustion V engine

Crankcase

2 piece, light alloy crankcase without cylinder liners

Crankshaft

Forged with 5 plain bearings

 8 bearings

Rods

Sinter-forged steel

Pistons

Light alloy - cast, contact surface iron coated

Camshaft

Cast, without bearing shells, running in camshaft housing

Camshaft drive

Toothed belt

Toothed belt and internal chain

Valves

1 intake, 1 exhaust in line overhead

2 intake, 2 exhaust suspended in V

Timing

Overhead camshaft  and hydraulic tappets

2 overhead camshafts per bank and hydraulic tappets

Valve Play

Self adjusting

Valve Timing

Intake opens

8

12

9

6

11

3

3

  

Intake closes

55

48

52

54

36

42

42

  

Exhaust opens

38

32

37

43

17

30

30

  

Exhaust closes

2

6

2

4

2

5

5

  

 

 

 

 

 

 

 

 

  

Cooling

Closed coolant-filled system

Fans

mechanical fan + electric fan and thermal switch

2 electric fans with thermal switches

Lubrication

Forced oil circulation with crescent pump

Oil Filter

Full flow type

Oil pressure @ 4000rpm

5 bar when oil temp between 80 and 100 degC

Oil consumption

up to 2.4 litres per 1000 miles

Exhaust

Continuous twin pipe with primary, intermediate and final mufflers

Continuous twin pipe with 3 way catalytic converter, intermediate and final mufflers

Emissions

Secondary air injection

3 way catalytic converter and secondary air injection

Heater

warm water heater with heat exchanger and fan

Fuel Delivery

1 electric fuel pump

2 electric fuel pumps
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