Technical Data
Technical data for Cayenne V8 4.8-litre DFI naturally aspirated and turbo engines
Information
Cayenne Turbo S
Engine data
Engine type M48/51S
No. of cylinders 8
Valves/cylinder 4
Turbocharging Twin-turbo
Displacement 4,806 cm3 (293.3 in3)
Bore 96 mm (3.78 in)
Stroke 96.4 mm (3.8 in)
Max. engine power (EU) 397 kW (540 bhp)
at engine speed 6000 rpm
Max. torque (EU) 750 Nm (kpm)
Max. litre output 82.7 kW/l (112.4 bhp/l)
Compression 12.25 (-0.5)
Idle speed 680 rpm
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 Aluminum, in two parts (bed plate)
Crankshaft Forged, supported by 5 bearings
Crankshaft bearing Binary bearings, dia. 64 mm (2.52 in)
Connecting rod steel, cracked rod, forged, l = 157.4 mm (6.2 in.)
Connecting-rod bearing Three-component bearings, dia. 54 mm (2.13 in)
Piston Aluminum, forged
Cylinder Aluminum/silicon running surface, silicon particles mechanically exposed
Cylinder head Aluminum, 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 11 mm (0.43 in)
Outlet valve lift 11 mm (0.43 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, 26° 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 EC
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
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 2,660 W
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 Beru 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)