911 Targa 4S (997) F6-3.8L (2007)
Technical Service Bulletin # 17/05
Date: 070412
Engine Controls - Performance Kit Installation
Tequipment
7/05 ENU 1001 1
Performance Increase Kit Installation Instructions (I-no. X51)
Note:
This Technical Information replaces the previous Technical Information dated April 5, 2006..
Changes/additions compared to the previous TI:
>
Additional vehicle types added
Vehicle Type:
911 Carrera S (997)/911 Carrera 4S (997)/911 Targa 4S (997)
Model Year:
As of 2006
Engine Type:
Standard engine M97/01 with engine power of 261 kW (355 HP)
Concerns:
Subsequent performance increase to 280 kW (381 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:
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new cylinder heads with flow-optimized intake and exhaust ports;
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exhaust ports and exhaust valves with larger cross-section and stronger exhaust valve springs;
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new exhaust manifolds with larger cross-section and optimized flow behavior;
^
new intake manifolds with modified cross-section (material: aluminum sand cast);
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new throttle housing (referred to below as electronic throttle adjuster) with larger cross-section (previously: 76 mm diameter: new: 82 mm diameter);
^
new air cleaner housing made of carbon with two intake channels;
^
modified maps for the DME control unit;
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increased engine speed.
Certain modifications are also required and the following preconditions must be met on the vehicle side:
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sports exhaust system including chrome-plated tailpipes;
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new underbody cover in the rear area;
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additional radiator together with an additional air inlet in the front apron - not for vehicles with Tiptronic transmission (I-no. 249).
The higher-performance engine is also available as an factory option for the new vehicles specified above under Exclusive option No. "X51".
Software:
In September 2005, the software for the PIWIS Tester was updated to version 11.0.
After completing the programming of the DME control unit, the control unit is given a new part number for the respective country or variant (see also
Step 8). The new number can be read out under the menu item "Identification".
Engine run-in: