Lotus Evora - General; Cylinder Block

Lotus Service Notes Section TDT
Page 2
GENERAL
Type designation 2GR-FE
Configuration V6
Capacity 3456 cm³ (210.9 in
3
)
Bore 94.0 mm (3.70 in
3
)
Stroke 83.0 mm (3.27 in
3
)
Valve configuration 4 VPC in pentroof chamber
Camshaft configuration DOHC per bank
Camshaft drive Single chain drive to both inlet camshafts.
Secondary chain linking each inlet camshaft
to its neighbouring exhaust camshaft.
All 4 camshafts use hydraulically activated
variable timing sprocket hubs under ECU
control
Valve operation Finger followers with hydraulic pivot posts
Siamese ports
Compression ratio 10.8:1
Compression pressure - new minimum 1,400 kPa (14 kgf/cm
2
, 199 psi)
- service minimum 980 kPa (10.0 kgf/cm
2
, 142 psi)
- cyl/cyl max. variance 100 kPa (1.0 kgf/cm
2
, 15 psi)
Firing order 1,2.3,4,5,6
Spark plugs Denso FK20HR11 (Iridium)
Spark plug gap 1.0 - 1.1 mm (0.040 - 0.045 in)
Engine management Lotus T4e controller
Ignition system Direct ignition using individual plug top coils
Fuel system Port injection.
Sychronous and non-synchronous operation
Hot wire airflow sensor
Fuel requirement Minimum 95 RON
Intake system Single throttle valve
2 stage intake tract length
Maximum continuous engine speed - std 6,600 rpm
- Sport mode 7,000 rpm
Maximum transient engine speed - std 6,800 rpm
- Sport mode 7,200 rpm
Normal warm idle speed - a.c. off 640 rpm
- a.c. on 690 rpm
Net power (ECE 85) 206 kW @ 6,400 rpm
Net torque (ECE 85) 350 Nm @ 4,600 rpm
Exhaust emissions (ECE 83.05) - CO 0.169 g/km
- HC 0.049 g/km
- NOx 0.016 g/km
- HC + NOx 0.065 g/km
- CO
2
- Urban 293 g/km
- Extra urban 154 g/km
- Combined 205 g/km
CYLINDER BLOCK
Material Aluminium alloy with 'cast in' cast iron
cylinder liners
Configuration 60°V, right hand bank offset 36.6mm forward
RH bank; cylinders 1,2,3 from front
LH bank; cylinders 4,5,6 from front
Bore diameter - std 94.000 to 94.012 mm (3.7008 to 3.7013 in.)
- service limit 94.200 mm (3.7087 in.)
Deck face flatness tolerance 0.07 mm (0.0028 in.)