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Lotus Service Notes Section TDP
GENERAL
Type designation - All except Elise S 2ZZ-GE
- Elise S 1ZZ-FE
Configuration & no. of cylinders in-line 4 -
Capacity 1796 cm
3
1794 cm³
Bore 82.00 mm 79.00 mm
Stroke 85.00 mm 91.50 mm
Camshafts Chain driven DOHC -
Valves 4VPC in pentroof -
chambers
Valve control - inlet Variable timing & lift Variable timing
- exhaust Variable lift -
Valve timing - inlet - low & medium speed - open 33° BTDC to all speeds 48° BTDC
to 10° ATDC to 5° BTDC
- close 15° ATDC to all speeds 12° ATDC
58° ATDC to 55° ATDC
- high speed - open 58° BTDC to
15° BTDC
- close 54° ABDC to
97° ABDC
- exhaust - low & medium speed - open 14° BBDC all speeds 42° BBDC
- close 34° ATDC all speeds 2° ATDC
- high speed - open 36° BBDC
- close 60° ATDC
Compression ratio 11.5:1 10.0:1
Compression pressure (250 rpm) - new 1400 kPa (203 psi) 1500 kPa (218 psi)
- service limit 1000 kPa (145 psi) -
Firing order 1,3,4,2 -
Spark plugs NGK IFR6A11 NGK BKR5EYA-11
Spark plug gap 1.1 mm 1.0 ± 0.05 mm
Maximum continuous engine speed 8000 rpm 6,800 rpm
Maximum transient engine speed 8500 rpm 7,000 rpm
Idle speed 850 rpm -
Ignition system Direct ignition using -
individual H.T. coils
for each cylinder
Fuel system Fully sequential -
indirect fuel injection,
Lotus T4 controller
Fuel requirement (minimum) Unleaded 95 RON -
Peak power (1999/99/EC) 141 kW (192 PS) 100 kW (136 PS)
@ 7,800 rpm @ 6,200 rpm
Peak torque (1999/99/EC) 181 Nm 172 Nm
@ 6,800 rpm @ 4,200 rpm
Exhaust emissions - CO 0.42 g/km 0.23 g/km
- HC 0.078 g/km 0.050 g/km
- NOx 0.0121 g/km 0.0217 g/km
- HC + NOx 0.0792 g/km 0.0717 g/km
- CO2 208 g/km 196 g/km
CYLINDER BLOCK
Material Aluminium alloy, Aluminium alloy,
MMC cylinder bores cast iron liners
Deck face flatness tolerance 0.05 mm -
Cylinder bore diameter 82.000 - 82.013 mm 79.000 - 79.013 mm