Porsche 996 TT, Repair Manual

Page: 67 / 2099

at engine speed 6000 rpm
Max. torque
as per 80/1269/EEC 560 (57.08) Nm (ftlb.)
Net torque as per SAE J1349 415 ftlb.
at engine speed 2700 to 4600 rpm
Max. litre output 85.8 (116.6)
HP/l kW/l (HP/l)
(115.3)
Engine speed limitation
by fuel cutoff at
6750 rpm
Idle speed 740 ± 40 rpm
Automatic transmission 740 ± 40 rpm
Engine weight as per
DIN 70020 A, kg Manual transmission
260* (572.7) Automatic transmission
253 (557.27)
* including ZMS (double−mass flywheel)
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Engine design
Engine design
Type 6−cylinder aluminium opposed−cylinder engine,
water cooled, bi−Turbo
Crankcase Vertically divided crankcase made from cast light
alloy, separate cylinder housing
Cylinder housing Cast light alloy with wet light alloy bushings
inserted, Nikasil coating
Crankshaft Forged, supported by 8 bearings
Crankshaft bearings Plain bearings
Connecting rods Forged
Con−rod bearings Plain bearings
Piston Pressed light alloy
Cylinder Nikasil cylinder lining
Cylinder head Light alloy
Camshaft housing Aluminium alloy
Valve guide Pressed in
Valve arrangement 2 inlet valves suspended in parallel V arrangement
2 exhaust valves suspended in parallel V
arrangement
Valve control Via flat−base tappets
Camshaft From the crankshaft via a gear wheel to the
intermediate shaft, and from there to the exhaust and
inlet camshafts via one double chain each.
einordnung
Engine design 4