1
2
3
3
4
5
6
7
8
9
10
11
12
13
1415
15
16
17
18
19
20
1
2
3
3
4
5
6
7
8
9
10
11
12
13
1415
15
16
17
18
19
20
VarioCam.
The upgraded VarioCam system is an
engine timing concept that distinguishes
bet ween various engine speeds and
load states so that timing can be adapted
to suit the current power demand. It
regulates not only the adjustment of the
intake camshafts but also the exhaust
camshafts in order to deliver increased
power and torque.
Adjustments are controlled imperceptibly
by the new electronic engine manage
ment. The results are extremely smooth
running, better fuel economy, low emis
sions and, above all, high power and
torque across the entire engine speed
range.
Dry-sump lubrication.
The engine oil supply is vital at the limits
of sporty performance, especially
in the presence of the powerful lateral
and longitudinal forces that can be
experienced on the racetrack.
Two oil scavenge pumps per cylinder
head and t wo scavenge pumps in the
crankcase return the engine oil quickly
and efficiently to the external tank.
In conjunction with the electronically
controlled oil pressure pump, this means
that the engine has a reliable supply
of oil to the crankshaft drive and both
cylinder banks. The new 911
GT3 is factory filled with
Mobil 1 fully synthetic high performance
oil. The excellent lubrication properties of this oil ensure a reliable cold start, even
at ver y low temperatures, and contribute
not least to the durabilit y of the engine.
1. Cylinder head
2. Intake camshaft
3. VarioCam intake and exhaust
camshaft controller
4. Timing chain
5. Valve spring
6. Intake valves
7. Follower
8. High-pressure injector
(direct fuel injection)
9. High-pressure pump
(direct fuel injection)
10. Crankshaft
11. Cylinder with Alusil liner surface
12. Forged aluminium piston
13. Forged titanium connecting rod
14. Variable intake manifold
15. Resonance flap
16. Electronically controlled
throttle valve
17. Air-conditioning compressor
18. Water pump
19. Water thermostat
20. Separate engine oil tank
(dry-sump lubrication)
For fuel consumption, CO2 emissions and efficiency class, please refer to page 91.
911 GT3: 350 kW (475 hp) at 8,250 rpm, 440 Nm at 6,250 rpm
360
340 320
300 280260 240
220
200 18 016 0
14 0
120 10 0 8060
40
1000 15 0 02000 25003000 35004000 45005000 55006000 65007000 7500 80008500 9000 950010000 520
500
480 460
440 420
400 380360
340 320
300 280260 240
220
200
Torque (Nm) Power (kW)
Engine speed (rpm)
440 Nm
350 kW (475 hp)
20 I Thrust
