The 911 Turbo and 911 Turbo S

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Expansion intake manifold. More power for less fuel. What sounds absurd is sometimes quite simple. You just have to have the nerve to question prin ciples that are seemingly written in stone. The 911 Turbo and 911 Turbo S models have an innovative expansion intake manifold that was used for the first time on the 2008 911 GT2. Its unique operating principle is unlike anything ever featured on existing induction systems. Our “expansion” intake manifold is a radical development that is the polar opposite of the resonance principle used on conventional turbocharged engines. A resonance manifold increases engine output by forcing additional air into the combustion chambers. To do this, the manifold is designed in such a way that the air—which vibrates due to the action of the valves— is in a compression phase as it passes through the inlet ports. Unfortunately, compression not only increases air volume—it also increases air temperature, and this has a negative effect on ignition. Our expansion manifold simply turns that principle around. The internal geometry is radically different from that of a resonance intake system. Key modifications include a longer distributor pipe, with a smaller diameter, and shorter intake pipes. As a result, the air is in the expansion phase as it enters the combustion chambers. Since expansion always cools, the air/fuel temperature is lower and ignition is significantly improved, resulting in increased performance. Of course, the amount of air that enters the engine under expansion is less than it would be under compression. To compensate for this, we’ve simply increased the boost pressure. The resulting increase in temperature is again through compression · 37 · and is immediately offset by the uprated intercoolers. So, instead of hot compressed air entering the combustion chambers, we now have cooler air generating more power and torque, while improving engine efficiency and therefore lowering fuel consumption, even under heavy loads and at high revs. As we said, sometimes you just have to question established ideas.
Exhaust system. The exhaust system is made from stainless steel. Its catalytic converters are extremely heatresistant yet quick to reach temperature—and thus optimal performance—when the engine is started from cold. Servicing. The 911 Turbo and 911 Turbo S models are designed for a long life. A self-adjusting belt drives the generator, power-steering pump, and air-conditioning compressor. Valve clearances are adjusted hydraulically, thus avoiding the need for any adjustment work. The camshafts are driven by timing chains that require no maintenance. · 38 · Performance | Engine 911 Turbo engine and exhaust system Also the ignition system, with the exception of the spark plugs, is maintenance-free. Both cars come with a two-year unlimited mileage warranty. The long service intervals keep costs and labor times down, which saves resources, since fewer service products and consumable parts are used.
Page 1: The 911 Turbo and 911 Turbo S Coupe
Page 4 and 5: The 911 Turbo concept · 3 ·
Page 6 and 7: The 911 Turbo models. Efficiency an
Page 8 and 9: The 911 Turbo was made technically
Page 10 and 11: Dreamers. Idealists. Environmental
Page 12 and 13: 911 Turbo model range. The Porsche
Page 14 and 15: In turbulent times we need a calm p
Page 16 and 17: You don’t have to depart this lif
Page 18 and 19: The 911 Turbo S. The 911 Turbo S is
Page 20 and 21: The 911 Turbo Cabriolet and the 911
Page 22 and 23: Cabriolet top. The fully automatic
Page 24 and 25: Performance · 23 ·
Page 26 and 27: 1 1. Radiator module (left) 2. Radi
Page 28 and 29: Handling pressure demands composure
Page 30 and 31: Direct Fuel Injection (DFI). On the
Page 32 and 33: Lightweight design. An alloy engine
Page 34 and 35: Variable Turbine Geometry (VTG). Th
Page 36 and 37: VarioCam Plus. VarioCam Plus is a v
Page 40 and 41: Calm. Power. Which way ‘round is
Page 42 and 43: This double clutch provides an alte
Page 44 and 45: Six-speed manual gearbox. The stand
Page 46 and 47: Porsche Traction Management (PTM).
Page 48 and 49: Porsche Torque Vectoring (PTV). Por
Page 50 and 51: What’s the advantage of being wel
Page 52 and 53: Steering. Sensitive and direct, the
Page 54 and 55: Porsche Stability Management (PSM).
Page 56 and 57: Sport Chrono Package Turbo with dyn
Page 58 and 59: The second function is the motorspo
Page 60 and 61: Responsibility · 59 ·
Page 62 and 63: With the 911 Turbo’s power comes
Page 64 and 65: Brakes. On a 911 Turbo, there is on
Page 66 and 67: Porsche Ceramic Composite Brakes (P
Page 68 and 69: 5 Bodyshell structure. 1 1 5 The re
Page 70 and 71: Porsche Side Impact Protection (POS
Page 72 and 73: What’s urgently expected of today
Page 74 and 75: Fuel consumption and recycling. Int
Page 76 and 77: Personality · 75 ·
Page 78 and 79: Because a comfortable driver is a b
Page 80 and 81: Comfort Seats. The Comfort Seats fi
Page 82 and 83: HomeLink ® . The standard programm
Page 84 and 85: Porsche Communication Management (P
Page 86 and 87: Bose ® Surround Sound system. The
Page 88 and 89:
Why it’s worth letting your imagi
Page 90 and 91:
911 Turbo with Aerokit Turbo and 19
Page 92 and 93:
Option Interior. • Sport seats A
Page 94 and 95:
Interior in two-tone combination (B
Page 96 and 97:
Option Audio and communication. •
Page 98 and 99:
Porsche Tourist Delivery Imagine to
Page 100 and 101:
Summary The 911 Turbo S. The 911 Tu
Page 102 and 103:
Technical data Engine 911 Turbo / 9
Page 104 and 105:
Engine 911 Turbo S / 911 Turbo S Ca
Page 106 and 107:
Index Option Page A Air conditionin
Page 108 and 109:
Standard interior colors. Leather/s
Page 110 and 111:
Natural leather interior. Leather/s
Page 112:
Porsche Cars North America, Inc. 98
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The 911 Turbo and 911 Turbo S

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