Mitsubishi Lancer Evolution 8 MR. Manual — part 4
ENGINE (4G6) – GENERAL, BASE ENGINE (6 M/T)
1-9
★
1. O2 sensor
★
2. Air flow sensor
★
3. Air intake sensor
★
4. Throttle position
sensor
★
5. Cam position sensor
★
6. Crack angle sensor
★
7. Atmospheric pressure
sensor
★
8. Water temperature
sensor
★
9. Knock sensor
• Power supply
• Ignition switch IG
• Ignition switch ST
• Vehicle speed sensor
• A/C switch
• A/C load signal
• Power steering fluid
pressure switch
• Alternator FR signal
• Intercooler water spray
switch (auto)
• Intercooler water spray
switch (manual)
✩
1. Injector
✩
2. 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
• Condenser fan relay (HI)
• Condenser fan relay
(LOW)
• Engine warning lamp
• Diagnosis output
• Alternator G terminal
• Intercooler water spray
relay
• Intercooler water spray
lamp
Engine ECU
✩
6. Purge control
solenoid valve
Canister
✩
7. Secondary air
control solenoid valve
From fuel tank
Secondary
air valve
By-pass
valve
★
1. O
2
sensor
✩
3. Fuel pressure
control solenoid valve
★
4. Throttle
position
sensor
★
7. Atmospheric pressure
sensor
★
3. Air intake
sensor
★
2. Air flow sensor
✩
4. No.1
wastegate
solenoid valve
✩
5. No.2 wastegate
solenoid valve
Only operates on 6M/T
Wastegate actuator
Fuel pressure
regulator
✩
1. Injector
★
5.Cam position sensor
★
8.Water temperature sensor
★
9.Knock sensor
Crack angle sensor
Catalytic converter
Air
intake
Check
valve
✩
2. ISC servo
Vacuum
tank
From fuel
pump
To fuel
tank
Control system diagram
ENGINE (4G6) – CONTROL SYSTEM (6 M/T)
1-10
1. Supercharging pressure control
The maximum torque has been increased, compared to the 4G63-DOHC-T/C engine in the current Lancer Evolution VIII, by
installing an additional wastegate solenoid valve (increased from 1 to 2 valves).
By adding a parallel No.2 wastegate solenoid valve to the previous system, provides extra relief capacity for the pressure
applied to the wastegate actuator thus increasing the range of supercharging pressure..
The engine ECU raises the supercharging pressure even further, thus raising the maximum torque, by driving the No.2
wastegate solenoid valve when the engine approaches maximum torque.
The No.1 wastegate solenoid valve is essentially controlled in the same way as previously.
Air flow
sensor
Knock
sensor
Engine
ECU
Battery
Secondary air
control solenoid
valve
Secondary
air valve
Ignition
switch
Air
intake
Bypass valve
Vacuum tank
Intercooler
Turbocharger
Wastegate
actu-
ator
No. 1
wastegate
solenoid
valve
No. 2 wastegate
solenoid valve
Crank angle
sensor
2-1
Power Train – Differential
SECTION 2
CONTENTS
Differential . . . . . . . . . . . ..2-1
Differential
The following changes have been made to the Super AYC differential.
•
Reduced weight: The weight of the differential has been reduced by building the clutch case from aluminium, rather than
steel, and partially revising the thickness of the clutch discs.
•
Improved strength and durability: Strength and durability have been raised by adopting special high-strength steel for the
hypoid gears (pinion gear and drive gear), instead of the cast steel used previously.
•
Improved control when ABS is operating: Revisions to the communications with the ABS-ECU and the control procedure
during ABS operation, as well as active ACD/AYC control in high friction road surfaces, such as circuits, have led to
increased steerability and stability.
Structural Diagram
Hypoid gears
Clutch case
Clutch discs
3-1
DRIVE CONTROL – Front suspension, Rear suspension, Wheels, Tyres
SECTION 3
CONTENTS
Front suspension. . . . . . . . . 3-1
Rear suspension. . . . . . . . . .3-1
Wheels and Tyres . . . . . . . . ...3-1
Front suspension
Road-holding has been improved by the adoption of Bilstein shock absorbers.
(GRS: Standard; RS: Optional)
Notes :
* Bilstein are one of the world’s leading manufacturers of shock absorbers, and their products are used in racing vehicles
worldwide.
Rear suspension
•
Road-holding has been improved by the adoption of Bilstein shock absorbers.
(GRS: Standard; RS: Optional)
•
The specifications of the coil springs have been changed. (GSR)
Specifications
Item
Lancer Evolution VIII MR GSR
Lancer Evolution VIII GSR
Wire diameter mm
12
←
Average diameter mm
88
←
Free length mm
277
287
Wheels and Tyres
BBS lightweight forged alloy wheels are provided as an option,
which reduces the unsprung weight. Fitting these BBS lightweight
wheels allows the Bilstein shock absorbers to display their full
range of performance.
Note:
See “Section 8 Main Equipment” for detailed specifications.
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