NHTSA ID Number: 10130112
Manufacturer Communication Number: 122-L7V6H-03
TSB/Document Date: 2018-03-13
Summary
Information: Subsequent performance increase to 316 kW(430 HP) Engine Type: Standard engine MA103 with engine power of 294 kW (400 hp) General: A parts kit is available for increasing the performance of the standard engine. Increased performance is achieved by implementing the following measures on the engine: ? New cylinder heads with flow-optimized intake ports, valves and valve springs. ? New intake camshafts. ? New resonance intake manifold with switching flaps (material: aluminum sand cast). ? Modified maps for the DME control unit.
Installation and Conversion Instructions
911 (991)
45/12
ENU
1001
1
Power Kit (I-no. X51)
Revisions:
This bulletin replaces bulletin Group 1, #45/12, dated October 20, 2015.
Model Year:
As of 2012 up to 2016
Vehicle Type:
911 Carrera S (991)/911 Carrera 4S (991)/911 Targa S (991)/911 Targa 4S (991)/911 “50
Years” (991)
Information:
Subsequent performance increase to 316 kW (430 HP)
Engine Type:
Standard engine MA103 with engine power of 294 kW (400 hp)
General:
A parts kit is available for increasing the performance of the standard engine.
Increased performance is achieved by implementing the following measures on the engine:
•
•
•
•
New cylinder heads with flow-optimized intake ports, valves and valve springs.
New intake camshafts.
New resonance intake manifold with switching flaps (material: aluminum sand cast).
Modified maps for the DME control unit.
The following additional modifications are also required and the following preconditions must be met on
the vehicle side:
•
•
•
New engine cover with carbon inserts, painted Titanium Grey.
Sports exhaust system incl. tailpipes (if not already fitted).
Radiator –middle– (I-no. 153).
The higher-performance engine is also available as factory installed option for the new vehicles
mentioned above under Exclusive option No “X51”.
Software:
•
Minimum version 11.200 (updated on September 27, 2012)
Engine run-in:
Engine speeds greater than 5,000 rpmare not permitted over a distance of 310 miles (500 km). The
maximum engine power of 430 hp (316 kW) depends on the total mileage of the engine at the time of the
retrofit and is achieved from a total mileage of approx. 6,250 miles (10,000 km) or higher.
Warranty:
Information
In order to provide a warranty for the retrofit, the dealer must create "Power Kit (I-no. X51)" documentation for the relevant vehicle in the "Porsche
Quality Information System = PQIS".
Tequipment
May 31, 2016
Page 1 of 31
1
911 (991)
1001
ENU
45/12
Installation and Conversion Instructions
Retrofitting:
Warranty in accordance with the Repair Conditions and the Warranty Conditions for Original Porsche
Parts.
If the engine to be converted has a mileage of over 25,000 miles (40,000 km), the crankshaft main
bearings and connecting-rod bearings must also be replaced.
If there is obvious wear on the connecting-rod bushings (scores), the connecting rods must also be
replaced.
New vehicle with Power Kit (I-no. "X51"):
Vehicle warranty in accordance with Porsche guidelines.
Diagram:
Figure 1
A
B
C
D
E
Technical
Description:
–
–
–
–
–
Torque (Nm)
Engine speed (rpm)
Power (kW)
Standard engine
Engine with increased performance – 430 hp (316 kW at 7,500 rpm and 440 Nm at 5,750 rpm
Standard-production engine
Increased performance engine
MA103
MA103 S
6
6
Bore:
102 mm
102 mm
Stroke:
77.5 mm
77.5 mm
3,800 ccm
3,800 ccm
12.5 : 1 (-0.5)
12.5 : 1 (-0.5)
Engine type:
No. of cylinders:
Displacement:
Compression ratio:
May 31, 2016
Page 2 of 31
Tequipment
Installation and Conversion Instructions
Max. engine power
at engine speed:
911 (991)
45/12
ENU
1001
294 kW (400 hp)
7,400 rpm
316 kW (430 hp)
7,500 rpm
Max. torque
at engine speed:
440 Nm
5,600 rpm
440 Nm
5,750 rpm
Max. power output per litre:
77.4 kW/l
83.2 kW/l
Engine speed limitation at:1
7,800 rpm
7,800 rpm
Idle speed:
680 ± 25
680 ± 25
:2
304 km/h (188 mph)
308 km/h (191 mph)
vmax
1
Engine speed at operating temperature
2
Value for 911 Carrera 2 Coupé (manual transmission)
1
Information
Please inform your sales staff and customers about the engine “break-in” precautions.
Copy the first three pages of these Installation and Modification Instructions and give them to your
customers!
Parts Info:
991.044.100.003
Power Kit, 316 kW (430 hp), set
991.044.100.014
Power Kit, 316 kW (430 hp) incl. sport exhaust system (I-no.
176), set
Power Kit, 316 kW (430 hp) incl. sport exhaust system (I-no.
176), set
991.044.100.025
3
ONLY for vehicles with sports exhaust system (I-no. 176)!
4
ONLY for Japan/Porsche Asia Pacific (= PAP) vehicles!
5
ONLY for RoW/USA and Canada vehicles!
Order the following as required for set “Power Kit WITHOUT sport exhaust system (991.044.100.00)”:
991.111.481.01
2x
Clamp for muffler
997.111.520.00
2x
Clamping sleeve for main muffler
ONLY order for vehicles WITHOUT connector (6-pin, see Step 5.4) in the vehicle:
991.612.957.00
1x
Dummy connector, 6-pin
ONLY order for vehicles from model year 2015 (see Step 5.5):
991.612.944.00
1x
Adapter wiring harness
Tequipment
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Page 3 of 31
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911 (991)
1001
ENU
Installation and Conversion Instructions
45/12
Parts List:
Figure 2
Parts included for engine ( Figure 2):
May 31, 2016
Page 4 of 31
999.170.151.90
6x
Spark plug FGR 5NQE Figure 2 -1-
9A1.607.167.41
1x
9A1.607.091.00
1x
9A1.110.061.46
1x
Holder for wiring harness on lower part of intake-air distributor
(cylinder 4–6) Figure 2 -2Wiring harness for engine (with connection for transmission input
shaft sensor for manual transmission = I-no. 487) Figure 2 -3Vent line (fuel tank) Figure 2 -4-
991.504.990.00
1x
———
1x
Engine compartment cover with carbon badges, painted Titanium
Grey Figure 2 -5Intake-air distributor (ASSemblY = ASSY) Figure 2 -6-
9A1.107.506.45
1x
Vent line to cylinder head 1–3 Figure 2 -7-
9A1.107.017.45
1x
Engine oil filler neck Figure 2 -8-
9A1.107.505.47
1x
Crankcase vent line Figure 2 -9-
991.107.264.45
1x
Oil filling hose Figure 2 -10-
9A1.106.550.45
1x
Cooling water compensation line Figure 2 -11-
9A1.110.092.41
1x
9A1.110.859.41
1x
Pressure line (connecting line for fuel collection pipe, ASSY)
Figure 2 -12Fuel collection pipe for cylinder 1–3 Figure 2 -13-
Tequipment
Installation and Conversion Instructions
911 (991)
45/12
ENU
1001
9A1.110.860.41
1x
Fuel collection pipe for cylinder 4–6 Figure 2 -14-
9A1.104.911.45
1x
9A1.105.275.45
1x
Cylinder head 1–3, complete, ASSY (incl. valves and bearing
saddles for camshafts) Figure 2 -15Intake camshaft for cylinder 1–3 Figure 2 -16-
9A1.105.403.02
2x
Washer, 34.0 x 0.1 (exhaust camshaft sprocket, not shown)
9A1.105.403.10
2x
Washer, 33.4 x 0.5 (camshaft controller, not shown)
9A1.105.276.45
1x
Intake camshaft for cylinder 4–6 Figure 2 -17-
9A1.104.912.45
1x
Cylinder head 4–6, complete, ASSY (incl. valves and bearing
saddles for camshafts) Figure 2 -18-
1
Figure 3
Parts included for vacuum and fresh-air system (engine area Figure 3):
9A1.110.666.00
1x
Connecting piece (angled pipe) Figure 3 -1-
999.239.045.40
3x
Hose, 3.5 x 2.0 x 60 Figure 3 -2-
999.239.042.40
1x
Hose, 3.5 x 2.0 x 75 Figure 3 -3-
948.110.126.00
1x
Connecting piece (elbow) Figure 3 -4-
06E.133.794
9x
T-piece Figure 3 -5-
928.574.717.05
5x
Moulded hose (protective tube, bent) Figure 3 -6-
928.573.727.05
3x
Y-piece Figure 3 -7-
999.507.866.40
2x
Line bracket, 5.0 x 5.0 (Raymond) Figure 3 -8-
900.918.005.40
4m
Pipe, 5.0 x 1.0 x 4 m (running meter) Figure 3 -9-
999.181.445.40
6x
Protective tube, 5.0 x 200 Figure 3 -10-
000.043.205.01
- 6X better wear protection on critical engine parts than...
- 1.3X better sludge protection than industry standards*
- 3X Stronger against viscosity breakdown than leading full...
- Protection for 10,000 miles between oil changes
- Meets or exceeds the following specifications: API SP/SN...
- Formulated for engines with 75,000 miles or more, Valvoline...
- Delivers 20% better wear protection and 15% better sludge...
- Extra detergents safeguard against friction, corrosion and...
- Advanced friction-fighting additives help maximize...
- Provides performance benefits for high mileage, new and...
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TSB/Document ID: 122-L7V6H-03
Replacement Service Bulletin Number:
MFR Communication Date: 2018-02-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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