1001IN Technical data for Cayenne V8 4.8-litre DFI naturally aspirated and turbo engines

WM 1001IN Technical data for Cayenne V8 4.8-litre DFI naturally aspirated and turbo engines

Information

Cayenne Turbo automatic transmission

Engine data

Engine type M48/51

No. of cylinders 8

Valves/cylinder 4

Turbocharging Twin-turbo

Displacement 4,806 cm3 (293.3 in3)

Bore 96 mm (3.78 in)

Stroke 83 mm (3.27 in)

Max. engine power (EU) 368 kW (500 HP)

Net power as per SAE J1349 368 kW (493 HP)

at engine speed 6000 rpm

Max. torque (EU) 700 Nm (kpm)

Max. torque (USA) 700 Nm (kpm)

at engine speed 2250-4500 rpm

Net torque as per SAE J1349 516 ftlb.

Max. litre output 76.6 kW/l (104 HP/l)

Max. litre output 102.6 HP/l

Compression 10.5 (-0.6)

Idle speed 550 rpm (with gear engaged), 580 rpm (in neutral)

Max. engine speed, rpm limit 6700 rpm

Engine speed limitation via electronic accelerator and fuel cutoff
Engine design

Type 8-cylinder, 90° V-engine

Crankcase Aluminium, in two parts (bed plate)

Crankshaft Forged, supported by 5 bearings

Crankshaft bearing Binary bearings, dia. 64 mm (2.36 in)

Connecting rod Forged, l = 157.4 mm (6.46 in.)

Connecting-rod bearing Binary bearings, dia. 54 mm (2.13 in)

Piston Aluminium, forged

Cylinder Aluminium/silicon running surface, silicon particles mechanically exposed

Cylinder head Aluminium, single-part, cross-flow cooling

Number/arrangement of intake valves per cylinder 2/suspended in parallel

Number/arrangement of outlet valves per cylinder 2/suspended in parallel

Intake valve diameter 38.3mm (1.51 in)

Outlet valve diameter 33 mm (1.30 in)

Intake valve lift 9.85 mm (0.39 in)

Outlet valve lift 9.85 mm (0.388 in)/9.20 mm (0.368 in)

Valve control Hydraulic flat-base tappets with intake-valve lift switching

Valve clearance Hydraulic valve clearance compensation

Camshaft Chilled cast iron, hollow-cast

Camshaft drive Duplex chain

Intake camshaft adjustment Rotary vane actuator, 25° camshaft, continuously adjustable

Timing: Intake valve opens 26.5° before TDC/19.5° after TDC

Timing: Intake valve closes 8.5° after BDC/59.5° after BDC

Timing: Outlet valve opens 33.5° before BDC/23.5° before TDC

Timing: Outlet valve closes 6.5° before TDC/6.5° after TDC

Switching rpm Map-controlled

Intake system Plastic intake manifold
Engine cooling

Cooling system type/installation position Front radiator

No. of radiators 1

Fans 1 DC + 1 DC
Engine lubrication

Type Integrated dry sump

Oil cooling Oil/water heat exchanger

Oil filter On pressure side behind oil pump

Oil pressure at n = 5000 rpm; at approx. 90 °C (194 °F) 4.5 bar (65.27 psi)

Oil pressure indicator Oil pressure warning light

Oil consumption 1.0 l/1000 km
Exhaust system

Exhaust system design Twin-pipe exhaust system with 2 pre- and 2 main catalytic converters, front and rear silencers (USA: 80 dB exhaust system)
Emission control system

EURO IV M1G (passenger vehicle) Oxygen sensor closed-loop control; post-catalytic converter control (4 sensors); 3-way catalytic converter with 2 pre- and 2 main catalytic converters (bank 1-4 and 5-8); (pre-and main catalytic converter metal carrier) EOBD

USA FED TIER 2 CAL LEV 2 Different from EURO IV LEV 2/LEV OBD II/ ORVR
Fuel system

Injection system DME Siemens EMS SDI 4.1

Fuel supply 2 electric fuel pumps with requirement-/filling-capacity-dependent activation of second pump, 2 supply-driven sucking jet pumps

Fuel system Returnless
Electrical system

Nominal voltage 12 V

Battery capacity 110 Ah (520 A)

Starter power 1.9 kW

Generator power 2660
Engine control

Engine control unit Siemens SDI 4.1

Ignition Single-spark ignition modules

Firing order 1-3-7-2-6-5-4-8

Spark plugs Bosch 14F5 MPUR 03

Electrode gap 0.8 mm (0.031 in)

Electronic accelerator Bosch DVE 5 electronic accelerator

USA LEV version On-Board Diagnosis II (OBD II)

EURO IV EURO IV On-Board Diagnosis (EOBD)
Engine weight

Engine weight as per DIN 70020 236.4 kg (521.2 lbs)
Filling capacities

Engine oil specification, Europe 0W-40 Mobil 1 (Porsche approval list)

Engine oil specification, USA/RoW 0W-40 Mobil 1 (Porsche approval list)

Engine oil change quantity 8.5 l (1.76 imp. gal)

Engine oil change quantity with filter change 9.0 l (1.87 imp. gal)

Fuel tank incl. reserve 100 l (22.00 imp. gal)

Fuel tank reserve 15 l (3.30 imp. gal)

Cooling water 18 l to 21 l (3.96 imp. gal to 4.62 imp. gal) (depending on equipment)