Porsche 911 GT3 Cup 2008 Note de version

911 GT3 Cup

Technical Handbook, 2008 Model

Forward

This technical information will give you the possibility to reference

data, adjustment values and working procedures and make the

maintenance and repair work on the vehicle easier.

We wish you every success with your 911 GT3 Cup.

Dr.Ing.h.c. F. Porsche

Aktiengesellschaft

Vertrieb Sonder- und

Rennfahrzeuge

911GT3 Cup 2008 Model competition car

This car is specifically designed for participation in one-make cup

competitions.

For obvious reasons, measurements referring to bodywork

dimensions of the production cars cannot be used as reference.

Porsche accepts no guarantee that the vehicle conforms to the

regulations.

The car can not be registered for road use and does not comply

with German road traffic regulations.

Illustrations, descriptions and schematic drawings serve

exclusively as presentation for the text. Porsche Motorsport

accepts no liability for the completeness and conformity of the

contents of this brochure with respect to the legality of the

current regulations.

For guarantee refer to sales contract

Project Management

Manager Porsche Michelin Supercup Mr. Jens Walther Tel. 0711 911-84042

Assistant Fr. Jennifer Biela 0711 911-84096

Fax:0711 911-82920

Service Mr. Stefan Rometsch Tel:0711 911-84613

Fax:0711 911-82052

Manager International Cup Mr. Gerd Schmid Tel. 0711 911 82684

Assistant Mr. Rene’ C. Maier 0711 911 82683

Technical assistance Mr. Rolf Huber 0711 911 82690

Fax 0711 911 82022

Manager Porsche Carrera Cup Mr. Helmut Greiner 0711 911 84074

Assistant Mrs. Andrea Hagenbach 0711 911 84041

Fax 0711 911 82920

Service Mr. Rainer Sauter Tel. 0711 911 84994

Fax 0711 911 82022

Sport parts sales

Mr. Kienle Tel. 0711 911 82923

Mr. Lenzner 0711 911 82423

Mr. Müller Bernd 0711 911 82687

Mr. Müller Christian 0711 911 89175

Mr. Scozzaro 0711 911 83738

Mr. Wöhr 0711 911 83363

Fax 0711 911 82808

The delivery of parts is made only against payment in cash or cash in advance.

Contents

General technical data 1

Technical engine data 2

Engine 3

Valve train / cam timing 7

Throttle reset 12

Engine tightening torques 13

Clutch 14

Gearbox 15

Gear ration chart 16

Gearbox disassembly 18

Gearbox assembly 22

Gear lever 30

Gearbox special tools . 32

Fluid capacities 33

Suspension 34

Maintenance and settings 35

Steering 36

Chassis tightening torques 39

Cooling system 42

Brake system 44

PCCB Brake system 47

Bodywork 50

Dashboard and electronic 51

Modas 58

Fire extinguisher 74

Safety instructions

Important safety instructions are markad in bold page

numbers

Only for Service CD:

To jump directly to a specific chapter click on the appropriate

line.

By using the arrow keys on the keyboard it is possible to page

through the chapter.

By pressing the “BACK” button at the bottom of every page it

is possible to return to the contents page.

General Technical Data

Chassis number: from WPO ZZZ 99 Z8S 7 98001

Car model: 997 830

Engine model: M 97/75

Gearbox model: G 97/ 60

Number of gears: 6

Weight

Dry weight: approx. 1170 kg

Dry weight Supercup (PCCB) approx. 1130 kg

Dimensions

Overall length (mm) 4450

Maximum width (mm) 1815

Wheelbase (mm) 2355

Front track width (mm) 1516

Rear track width (mm) 1561

Engine Technical Data

Engine model M97/75

Construction Six-cylinder boxer

Type of cooling water cooled

Number of cylinders 6

Cylinder bore (mm) 99.98

Stroke (mm) 76.4

Actual cubic capacity 3598 cm³

Compression ratio 12.0 (- 0.4):1

Maximum power 309 kW / 420 PS

Maximum power at 7500 r.p.m.

Maximum torque 410 Nm

Maximum torque at 6500 r.p.m.

Maximum engine revs in 1st to 6th gears 8400 r.p.m.

Valve timing

Inlet valve diameter (mm) 41

Inlet valve lift (mm) 12.5

Exhaust valve diameter (mm) 35.5

Exhaust valve lift (mm) 11.1

Maximum inlet valve lift 105° after TDC

Maximum exhaust valve lift 115° before TDC

Camshaft adjustment:

Set the camshaft timing with the camshaft timing and adjustment

tools.

Camshafts:

Inlet valve camshaft:Engine M 97/75 race component

Exhaust valve camshaft 911 GT3 RS

Camshaft housing:

Engine M 97/75 modified 911 GT3 RS production component

Piston/cylinder:

Piston clearance 0.02 – 0.05 mm

Crankcase:

Crankshaft: The two-piece aluminium alloy crankcase is a production

911 GT3 RS component. The forged crankshaft has 8 bearings.

Crankshaft bearings:

The crankshaft bearings are the same as those used in the 911GT3 RS

engine.

Notice:

The term 911 GT 3 RS refers to the production car version.

Connecting rod:

Because the connecting rods have a shot peened surface care must

be taken that no visible damage occurs when removing or fitting.

The connecting rod must not be polished.

Connecting rod bolts:

Attention: The connecting rod bolts must always be renewed

when the engine is completely overhauled. The surface of the

mating faces must not be damaged.

Tightening procedure:

Attention: The threads and mating faces must be lubricated with

engine oil.

Initial torque: 30 Nm +/- 10 % (mating torque)

Final torque: 1 x 60° +/- 2° torque angle

Piston:

The light-alloy pistons are 99.95 mm in diameter. The position of the

inlet valve pocket should be noted when fitting the piston. The

underside of the piston crown is cooled by sprayed oil. The weight

difference between all the piston/connecting rod assemblies must not

be greater than 5 grams.

Cylinder:

The cylinders are manufactured from a high-strength light-alloy with

Nicasil coating and have a bore of 99.98 mm.

Cylinder head:

The cylinder head is a GT3 RS production component.

Engine lubrication:

The 911 GT3 Cup engine is fitted with a dry sump lubrication system.

The oil tank is mounted to the engine.

An oil/water heat-exchanger is mounted to the engine (production GT3

RS).

1 – Oil tank 9 – Piston cooling

2 – Pressure pumps 10 – Timing chain tensioner

3 – Safety valve 11 – Camshafts

4 – Oil filter 12 – Hydraulic valve lifter

5 – Oil pressure gauge (Production) 13 – Crankcase scavenge pump

6 – Oil/water heat-exchanger 15 – Balance shaft

7 – Pressure relief valve 16 – Cylinder head supply pump

8 – Main bearing

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