fuel MITSUBISHI LANCER EVOLUTION VIII 2004 Workshop Manual

001GENERAL – TECHNICAL FEATURES
SECTION 0
GENERAL
CONTENTS
Vehicle Identification ..............................01
Implementation Code .............................01Development Aims .................................01
Overview of Lancer Evolution VIII MR. 02
Model lineup
Note
= Continued model
Applied vehicles
GHCT9A: CT9A0300001 ~
Development Aims
The launch of the Lancer Evolution VIII MR is the result of our pursuit of further advances and improvements based on the
Lancer Evolution VIII, with the aim of maintaining and strengthening the Mitsubishi Evolution brand.
ModelVersion’04 ModelGradeEngine ModelTransmissionFuel System
GHCT9ASNDFZ
SJDFZ
SJGFZ

RS
RS
GSR4G63
(2 000 DOHC 16 valve
intercooler turbo)W5M51 (4WD, 5M/T)
W6MAA (4WD, 6 M/T)MPI

11ENGINE (4G6) – GENERAL
SECTION 1
ENGINE (4G6)
CONTENTS
General ....................................................11
1. Major Specifications ....................................11
2. Engine Performance Curve.........................12
Base Engine (6 M/T) ...............................12
1. Cylinder head gasket...................................12
2. Pistons ..........................................................13
3. Piston rings (2nd) ........................................134. Oil rings ........................................................14
5. Counterbalance shaft .................................14
6. Camshaft.......................................................15
Intake / Exhaust System (6 M/T)............16
1. Exhaust system ...........................................16
Control system (6 M/T) ...........................18
1. Supercharging pressure control ..............110
General
The 4G63T/C engine fitted in the Lancer Evolution VIII MR is basically the same as the 4G63T/C engine used in the Lancer
Evolution VIII.
The basic structure is the same in both the 6M/T (6speed) and 5M/T (5speed) versions, but the following improvements have
been made to the 6M/T version, in order to achieve higher performance.
• Adoption of 5ply cylinder head gasket
• Addition of Vshaped groove in piston , and modified shape in cooling channel
• Reduced oil consumption by increasing tension in piston rings and reducing endtoend gap
•Extra durability and reduced oil consumption by using new treatment on outer surface of oil ring side rail, and altering
thickness
•Lighter counterbalance shaft
• Increased output at high engine speeds by modifying intake cams
Major Specifications
Item 6 M/T5M/T
Total Displacement cc1997
Combustion chamberPentroof type
Bore x stroke (mm)85.0 x 88.0
Compression ratio8.8
Camshaft arrangementDOHC4 valve
FuelPremium unleaded
Max. output (kW/rpm)206/6500
Max. torque (Nm/rpm)400/3500392/3500
Fuel systemElectronic controlled multipoint fuel injection
Ignition systemElectronic controlled twocoil
Lash adjusterEquipped

ENGINE (4G6) – GENERAL, BASE ENGINE (6 M/T)18
Control system (6M/T)
The following changes have been made, based on the control system in the 4G63DOHCT/C engine fitted in the current
Lancer Evolution VIII.
* Addition of wastegate solenoid valve (1 valve –> 2 valves)
System Block Diagram
Air flow sensor (AFS)
Air temperature sensor
Atmospheric pressure sensor
Water temperature sensor
Throttle position sensor (TPS)
A/C switch
A/C load signal
Cam position sensor
Crank angle sensor
Alternator FR terminal
Vehicle speed sensor
Power steering fluid pressure
switch
Knock sensor
Intercooler water spray (auto)
Intercooler water spray (manual)
O
2sensor
Ignition switch –IG
Ignition switch –STPower supplyEngine ECU
Fuel injection control
Idle speed control (ISC)
Ignition timing control
Engine control relay control
Fuel pump relay control
A/C relay control
Fan motor control (radiator)
Fan relay control (A/C
condenser)
Alternator control
Air flow sensor filter reset
control
Fuel pressure control
Supercharging pressure
control
Secondary air controlIntercooler water spay control
Engine warning light control
O
2sensor heater control
Purge control
Diagnosis output
RAM data transmissionNo. 1 indicator
No. 2 indicator
No. 3 indicatorNo. 4 indicator
ISC servo (stepper motor)
Ignition coil A (No.1 – No.4)
Ignition coil B (No.2 – No.3)
Engine control relay
Fuel pump relay 2
Fuel pump relay 3
A/C relay
Fan controller (radiator fan)
Fan motor relay (HI, LOW)
(A/C condenser)
Alternator G terminal
Air flow sensor
Fuel pressure control valve
No. 1 wastegate solenoid valve
No. 2 wastegate solenoid valve
Secondary air control solenoid
valve
Intercooler water spray relay
Intercooler water spray lamp
Tachometer
Engine warning lights O
2sensor heater
Purge control solenoid valve
Diagnosis output terminal
Diagnosis output terminal (for
MUTII)

ENGINE (4G6) – GENERAL, BASE ENGINE (6 M/T)19
1. O2 sensor2. Air flow sensor3. Air intake sensor4. Throttle position
sensor
5. Cam position sensor6. Crack angle sensor7. Atmospheric pressure
sensor
8. Water temperature
sensor
9. Knock sensor•Power supply
• Ignition switch IG
•Ignition switch ST
•Vehicle speed sensor
• A/C switch
1. Injector2. ISC servo (stepper
motor)
3. Fuel pressure control
solenoid valve
4. No.1 wastegate solenoid
valve
5. No.2 wastegate solenoid
valve
6. Purge control solenoid
valve
7. Secondary air control
solenoid valve•Engine control relay
•Fuel pump relay 2, 3
•A/C relay
•Ignition coil
• Fan controller
Engine ECU
6. Purge control
solenoid valveCanister
7. Secondary air
control solenoid valveFrom fuel tank
Secondary
air valveBypass
valve
1. O2sensor
3. Fuel pressure
control solenoid valve
4. Throttle
position
sensor
7. Atmospheric pressure
sensor
3. Air intake
sensor2. Air flow sensor
4. No.1
wastegate
solenoid valve
5. No.2 wastegate
solenoid valve
Only operates on 6M/TWastegate actuatorFuel pressure
regulator
1. Injector5.Cam position sensor8.Water temperature sensor
9.Knock sensor
Crack angle sensor
Catalytic converter Air
intakeCheck
valve
2. ISC servo
Vacuum
tank
From fuel
pump To fuel
tank
Control system diagram

REFERENCE MA
TERIAL – MAIN SPECIFICATIONS / DETAILED SPECIFICATIONS84
GHCT9AItem
SNDFZSJDFZSJGFZ
Minimum ground clearance m0.140¨¨
Max. speed (estimated) km/h180¨¨
Fuel consumption km/l (10/15 mode)9.69.7¨
Braking distance m (initial speed in
km/h) È49 (100)
[Vehicle with15" brakes]
43 (100)
[Vehicle with17" brakes]¨¨
Performance
Min. turning radius m5.9¨¨
Bore x stroke mm85.0 X 88.0¨¨
Compression ratio8.8 (Unleaded
Premium)¨¨
Max. output net [k/W r.p.m.]206 / 6500
(net)¨¨
Max. torque N•m/rpm.392 / 3500
(net)400 / 3500
(net) Ȩ
OpenBTDC 21˚BTDC 17˚
ȨIntake
ClosedABDC 59˚ABCD 63˚
Ȩ
OpenBBDC 58˚¨¨
Engine
Valve or
port timing
Exhaust
ClosedATDC 18˚¨¨
Fuel tank capacity (litres)50¨55
Type and performance of ignition
equipmentElectronic:
20˚~ 45˚¨¨
Type of spark plugsIGR7A,
IGR7AG,S22PRA7,VW22PRDA7¨¨
Battery capacity Ah34 (5), 48 (5)
or 52 (5)¨¨
Electrical
Equipment
Alternator output VA12 – 58, 90,
100 or 105¨¨
Detailed Specifications
These Detailed Specifications are based on submitted data, and may therefore differ from the actual equipment.
The
symbol indicates specifications which have changed from the previous model.

REFERENCE MA
TERIAL – MAIN EQUIPMENT86
Main Equipment
The “” symbol indicates standard equipment, and the “” symbol indicates a manufacturer’s option. The equipment may change, depending on the time of manufacture.
4WD
RSGSR
Equipment
5M/T6M/T
Aluminium turbollr
Intercooler water spray systemlll
W/out Intercooler water spray systemrr
Engine
Engine oil coolerlll
5speed manual (short stroke, high gear
ratio)l
6speed manual (short stroke)ll
Gear leverLeather
Front LSDHelical
Rear LSDMechanical
l
lll
Active Centre Differential (ACD)lll
Power
Train
Active Yaw Control Differential (AYC)rll
Bilstein shock absorbersrrl
Front strut tower barslll
205/65R15 94HlTyres
235/45ZR17rll
T125/70D16lSpare
tyre
T125/70D17rll
Steel (5hole)
(Offset : 46 mm)
(PCD:
114.3mm)15inch
¥ 6.0JJ
silverl
17inch
¥ 8.0JJrllSteel (5hole)
(Offset : 38 mm)
(PCD:114.3mm)
17inch
¥ 8.0JJ
(BBS)
rrr
Steel (5hole)
(Offset : 40 mm)
(PCD:
114.3mm)4.0T•
16inchl
Wheel
Steel (5hole)
(Offset : 30 mm)
(PCD:114.3mm)4.0T•
17inch
rll
Centre capBlackl
Power steeringlll
MOMOllSteering wheel (leather
type ; 3spoke; airbag)
MOMO
(black
spokes)
rrl
Tilt steering mechanism
Full cover
lll
Release switch
(gloss)
Parking brake
lever
Leather grip
l
15inch ventilated
disclFront
17inch ventilated
disc (BREMBO)rll
15inch ventilated
disc (drum in)l
Drive
Control
Brake
Rear
16inch ventilated
disc (drum in)(BREMBO)
rll
Note:
In the wheel columns, “PCD” is an abbreviation of “Pitch
Circle Diameter”, referring to the diameter of the pitch circle
of the installation holes.
4WD
RSGSR
Equipment
5M/T6M/T
4 ABS (sports ABS)rll
Pressure control valve (PCV)l
Drive
Control
Electronic Brake Force Distribution
System (EBD)rll
Central door lockingrrl
Boot lid openerlll
Fuel filler flap opener
Child protection
lll
Multimode keyless entryl
BlackllOuter door handles
Body colourl
Inside door handlesColouredlll
Power windows with safety mechanismsrrl
Windscreen (laminated glass)Green
Front door windows (UV absorbing
glass)lll
Greenll
Green, with sun
shadel
Rear window
glass (with
heating element)
Privacy glassr
GreenlllRear door
windows
Privacy glassr
GreenlllRear static
windows
Privacy glassr
BonnetAluminiumAir outlet
WingAluminium
RoofAluminium
lll
Body
Rear end crossbarll
Exclusive
front bumperBody colour
Exclusive
rear bumperBody colour
Windscreen
Rear window
Pillar, roof
Mouldings
(black)
Belt line
lll
Manual type (black)llDoor mirror
Electric stowable
remote control door
mirror (body colour)l
Front air damExclusive
extension
Rear air dam
lll
Exterior
Rear spoiler (large size)lll

REFERENCE MATERIAL – MAIN EQUIPMENT87
4WD
RSGSR
Equipment
5M/T6M/T
Seat finishFabriclll
Standard typell
Recaro seatr*1r*1l
SlideAdjustment
mechanism
Reclining
lll
Front
Seat
Headrest
Low back bench seat (fixed)
ll
High back bench seat (fixed)
Rear
Seat
Centre arm rest (with cup
holder)
l
2 ¥ 3point with
ELR
With pretensioner
(driver’s seat &
front passenger
seat)
Front
Adjustable
seatbelt anchor
SRS
airbags
Rear2 ¥ 3point with
ELR / ALR + 1 ¥ 2
point belt
lll
Driver’s seatlllSRS
airbags
Front passenger’s seatrrl
Accessories box (1 DIN)ll
Parcel box (with lid)l
Parcel
boxes
Coin box
Glove box
lll
Standard typell
Large typeWith lidl
Shift boot ringl
Front seatlllAshtray
Rear seatl
Floor
console
Cup holder (front seat)lll
Centre panel (unique type)ll
2 DIN typel
HeadliningClothlll
Moulded type (soft)Front door
trim
Door pocket (driver’s
seat, front passenger’s
seat)
Interior
Rear doorMoulded type (soft)
lll
4WD
RSGSR
Equipment
5M/T6M/T
Boot interior trim
Boot interior
floor carpetNeedle punch
l
¥ 1 (front passenger’s seat)llRetractable
assistance
straps
¥ 3 (front passenger’s seat,
rear seats)l
Driver’s seatlll
Front passenger’s seatrrl
Ticket holder (driver’s seat)lll
Sun
visors
Vanity mirror (with lid)l
Internal
mirrorDay / night switchable
Interior
Foot rests
lll
44B20LlllBattery
55B24Lrrr
Halogen (low and
high beam)ll
Discharge (low
beam)
Halogen (high
beam)
Fog lamps
(halogen)
rrl
Position lightslll
Automatic lightsl
Headlight levellingrrl
Extension (black)rrl
Rear combination
lights
(clear type *2)lll
External
lightsHeadlight
assembly
(Clear
type *2)
Extension (black)rrl
High mount stop
lightRear shelf mounting
(bulb type)
Front cabin lights (with map light)
lll
Rear cabin lightslll
Interior
lights
Boot interior light
Combination meterSpecial type
Electric type analogue
speedometer
Twin type trip meter
Tachometer
Water temperature
Meter
gauge
Fuel
lll
Fog lightsrrl
High beam
Turn signal and hazard lights
Equip
ment
Indicator
lights
ACD
lll
Note : *1: 4point seatbelt asymmetric type seat*2: Turn signal lamps coloured amber

REFERENCE MA
TERIAL – MAIN EQUIPMENT, COLD CLIMATE SPECIFICATIONS88
4WD
RSGSR
Equipment
5/MT6/MT
ABSrll
SRS airbags
Fuel level
Parking brake
Charge
Brake fluid
Engine check
Warning
lights
Door not properly closed
Lighting monitor warningBuzzer
Ignition key reminder warning
lll
Fixed time
intermittentll
Variable
intermittent(speed
sensitive)l
Windscre
en wipers2 speed
Mist spray
Equip
ment
Windscreen washer (synchronized with
wiper, 4jet)
lll
4WD
RSGSR
Equipment
5/MT6/MT
Rear
windowwiper /
washerFixed time intermittent,
synchronized with (R) gearpositionl
AM/FM tuner radio + MD player
+ DVDMMCS (DVD navigation
Mitsubishi MultiCommunication
System)r
Roof aeriallll
Roof and window aerial (diversity
aerial)r
W/out audiolll
Audio
parts
6 speakers (2 DIN compatible)r*3
Digital clock
Immobiliser system
lll
Manual heater
Air conditioning kit
ll
Equip
ment
Air
conditioning
Fully automatic air
conditioningl
Notes:
*3: Brackets for an aerial and radio are installed as standard.
Cold Climate Specifications
4WD
RSGSR
Equipment
5M/T6M/T
Battery
Weather strip silicon coating
Rear seat heater duct
Cold Climate Specification label
rrr
Door mirrors with heating elementsr

01
GENERAL MODEL LINEUP , APPLIED VEHICLES
SECTION 0
GENERAL
CONTENTS
Model lineup
Note
= Continued model
Applied vehicles
GHCT9A: CT9A0300001 ~
Model lineup...........................................01
Applied vehicle numbers .......................01Main specifications.................................02
ModelVersion’04 ModelGradeEngine ModelTransmissionFuel System
GHCT9ASNDFZ
SJDFZ
SJGFZ

RS
RS
GSR4G63
(2 000 DOHC 16 valve
intercooler turbo)W5M51 (4WD, 5M/T)
W6MAA (4WD, 6 M/T)MPI

SERVICE MANUAL
LANCER
EVOLUTION VIII
MR
FOREWORD
This manual contains details of the main changes to
the 2004 model Lancer Evolution VIII MR. Only
differences to the current Lancer Evolution VIII are
included, so please use this manual in conjunction with
the related information specified on the next page.
Please ensure that proper servicing is carried out
promptly, and that the information contained in the
relevant manuals is carefully read and understood
before doing any servicing work.
This information relates to the current vehicle (February2004).Since specifications will change, some of the
information contained here will inevitably besuperseded.
Note that SI units are used in this manual. Old units are
not shown alongside them.
(However, old units are used for some figures we have
taken from existing documents).
Any opinions, requests, or questions concerning
this manual,should be written on the ‘Servicing
Comments Form’ at the end, and sent to us by fax.
February 2004
MITSUBISHI MOTOR CORPORATION
This manual is printed on recycled paper.
CONTENTS
General ..........................................
Fuel ................................................
Intake, Exhaust .............................
Manual Transmission ...................
Front Suspension.........................
Rear Suspension ..........................
Exterior..........................................
00
13
15
22
33
34
51