Engine Design - Porsche 996 TT Repair Manual

at engine speed
Max. torque
as per 80/1269/EEC
Net torque as per SAE J1349
at engine speed
Max. litre output
Engine speed limitation
by fuel cutoff at
Idle speed
Automatic transmission
Engine weight as per
DIN 70020 A, kg
* including ZMS (double−mass flywheel)
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Engine design

Engine design
Type
Crankcase
Cylinder housing
Crankshaft
Crankshaft bearings
Connecting rods
Con−rod bearings
Piston
Cylinder
Cylinder head
Camshaft housing
Valve guide
Valve arrangement
Valve control
Camshaft
Engine design
einordnung
6000
560 (57.08)
415
2700 to 4600
85.8 (116.6)
HP/l
6750
740 ± 40
740 ± 40
Manual transmission
260* (572.7)
6−cylinder aluminium opposed−cylinder engine,
water cooled, bi−Turbo
Vertically divided crankcase made from cast light
alloy, separate cylinder housing
Cast light alloy with wet light alloy bushings
inserted, Nikasil coating
Forged, supported by 8 bearings
Plain bearings
Forged
Plain bearings
Pressed light alloy
Nikasil cylinder lining
Light alloy
Aluminium alloy
Pressed in
2 inlet valves suspended in parallel V arrangement
2 exhaust valves suspended in parallel V
arrangement
Via flat−base tappets
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.
rpm
Nm (ftlb.)
ftlb.
rpm
kW/l (HP/l)
(115.3)
rpm
rpm
rpm
Automatic transmission
253 (557.27)
4