Porsche Boxster 1999 Technical Manual page 70

Entire vehicle -General
Boxster
Valve control
DOHC with camshaft adjustment NarioCam}
Valve arrangement per combustion chamber
2 inlet, 2 exhaust suspended in parallel V arrangement
Valve clearance
hydraulic valve clearance compensation
Timing with 1 mm valve travel Inlet opens 140 after TOC
Inlet closes 600 after BOC
Outlet opens 1410 after TOC
Outlet closes 60 before TOC
Engine cooling
Type
Liquid cooling, two electric fans, controlled in two stages
Motor lubrication
Integrated dry sump
Via oil-water heat exchanger
Oil cooling
Oil pressure at 5000 rpm
Oil temperature 90 °C
Approx. 5
bar
Up to 1.0 1/1000 km
Oil consumption
ME 7.2 with sequential fuel injection
Fuel system
1 electr. fuel pump
Fuel supply
bar
3.6 4.0
System pressure without vacuum
min. 98/88
Fuel RON/MON
0 Technical data Boxster S (3.2 I)
Printed in Gem1any -35, 1999
0 -66
986O_65