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2
3
6
5
8
7
4
20
1
3.4-litre six-cylinder Boxer engine in the Boxster S
1. High pressure pump
6. Inlet camshaft
2. High pressure injector
7. Inlet valve
3. Ignition rod module
8. Valve spring
4. Camshaft controller
9. Combustion chamber with
5. Tappets with integral valve
Alusil running surface
play compensation
16
15
19
9
12
11
21
14
13
10. Forged aluminium pistons
11. Forged connecting rod
12. Crankshaft
13. Water pump
14. Vibration damper
· 30 ·
17
10
20
18
15. Resonance valve
16. Twin flow valve
17. Intake distributor with
integral acoustic volume
18. Vacuum pump
280
260
240
220
200
180
160
140
290 Nm
120
100
80
60
40
1000
1500
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
Engine speed (rpm)
Boxster: 290 Nm between 4,400 and 6,000 rpm, 188 kW (255 HP) at 6,400 rpm
280
260
240
220
360 Nm
200
180
160
140
120
100
80
60
40
1000
1500
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
Engine speed (rpm)
Boxster S: 360 Nm between 4,400 and 5,500 rpm, 228 kW (310 HP) at 6,400 rpm
19. Cooling jacket
20. Crankshaft breather
21. Timing chain
· 31 ·
Boxster |
Drive
440
420
400
380
188 kW (255 hp)
360
340
320
300
280
260
240
220
200
7500
440
420
228 kW (310 hp)
400
380
360
340
320
300
280
260
240
220
200
7500
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