1985-89 I-Mark S, XS, and Sunsport

General Information
Manufacturer
Isuzu Motors, Ltd., Fujisawa, Japan
Importer
American Isuzu Motors, Inc., Whitier, California
Body Style
4-passenger two door hatchback or four door compact sedan
Drivetrain Layout
Front Engine, Front Drive
Body/Frame
Uni-body
Price
$7,779-9,379
Options
Three speed automatic transmission, power steering, air conditioning, stereo, alloy wheels, cruise control
Typical Market Competition
Geo Spectrum
Dimensions
Wheelbase
94.5 in / 2400 m
Track
Front
54.7 in
Rear
54.3 in
Length
Hatchback 157.4 in / 3997 mm
Sedan 160.2 in
Width
63.5 in / 1612 mm
Height
54.1 in / 1375 mm
Ground Clearance
6.6 in / 167 mm
Curb Weight
1923-2186
Weight Distribution
52/48
Cargo Capacity
16.9 cu ft
Fuel Capacity
11.1 gal
Weight/Power Ratio
28.57
Engine
Type
Inline 4, liquid cooled, cast iron block, cast aluminum head
Bore x Stroke
3.03 in x 3.11 in / 77.0 mm x 79.0 mm
Displacement
90 ci / 1471 cc
Compression Ratio
9.6:1
Valve Gear
SOHC 2 valves per cylinder
Fuel/Induction System
Two barrel carburetor
Horsepower
70 HP @ 5400 RPM
Torque
87 lb/ft @ 3400 RPM
Horsepower/Liter
Maximum Engine Speed
6000 RPM
Recommended Fuel
Unleaded Regular
Driveline
Transmission Type
Five speed manual
Gear Ratios
First
3.727
Second
2.043
Third
1.448, 1.333
Fourth
1.027, .923
Fifth
.829, .744
Axle Ratio
Final Drive Ratio
3.578
Chassis
Suspension
Front
Independent, MacPhereson struts with lower control arm, coil springs, anti-roll bar
Rear
Independent, shock absorber, trailing arm with coil springs
Steering
Type
Rack and pinion, manual or power assisted
Ratio
20.0:1 (Manual)
16.0:1 (Power)
Turns Lock to Lock
3.52 (20.0:1 Manual) 2.88 (16.0:1 Power)
Turning Circle
32.8 ft
Brakes
Front Type/Diameter
Discs, 8.86 in
Rear Type/Diameter
drums, 7.09 in
Anti-Lock
Not available
Wheels and Tires
Wheel Size
13 x 5 or 13 x 4.5
Wheel Type/Material
Steel
Tire Size
175/70R13 or 155/80R13
Tire Manufacturer and Model
Bridgestone

1987-89 I-Mark Trubo (1988 I-Mark RS, 1989 I-Mark LS)

General Information
Manufacturer
Isuzu Motors, Ltd., Fujisawa, Japan
Importer
American Isuzu Motors, Inc., Whitier, California
Body Style
4-passenger two door hatchback or four door compact sports sedan
Drivetrain Layout
Front Engine, Front Drive
Body/Frame
Uni-body
Price
Options
Recaro seats
Typical Market Competition
Acura Integra LS, Chevrolet Cavalier Z24, Dodge Shadow ES, Ford Escort GT, Mitsubishi Mirage Turbo, Pontiac Sunbird GT, Renault GTA, Toyota Corolla FX16, Volkswagen GTI 16V
Dimensions
Wheelbase
94.5 in / 2400 m
Track
Front
55.4 in / 1406 mm
Rear
54.6 in / 1386 mm
Length
157.4 in / 3997 mm
Width
63.5 in / 1612 mm
Height
54.1 in / 1375 mm
Ground Clearance
6.6 in / 167 mm
Curb Weight
1923-2186
Weight Distribution
52/48
Cargo Capacity
16.9 cu ft
Fuel Capacity
11.1 gal
Weight/Power Ratio
17.5
Engine
Type
Inline 4, liquid cooled, cast iron block, cast aluminum head
Bore x Stroke
3.03 in x 3.11 in / 77.0 mm x 79.0 mm
Displacement
90 ci / 1471 cc
Compression Ratio
8.0:1
Valve Gear
SOHC 2 valves per cylinder
Fuel/Induction System
Electronic Multipoint EFI, Turbocharged
Horsepower
110 HP @ 5400 RPM
Torque
120 lb/ft @ 3500 RPM
Horsepower/Liter
74.48
Maximum Engine Speed
6000 RPM
Recommended Fuel
Unleaded Premium
Driveline
Transmission Type
Five speed manual
Gear Ratios
First
3.500
Second
1.916
Third
1.333
Fourth
.923
Fifth
.744
Axle Ratio
Final Drive Ratio
3.833 (3.578 in 1987)
Chassis
Suspension
Front
Independent, MacPhereson struts with lower control arm, coil springs, anti-roll bar
Rear
Independent, shock absorber, trailing arm with coil springs, anti-roll bar
Steering
Type
Rack and pinion, power assisted
Ratio
16.0:1
Turns Lock to Lock
2.88
Turning Circle
32.8 ft
Brakes
Front Type/Diameter
Vented discs, 9.02 in
Rear Type/Diameter
drums, 7.09 in
Anti-Lock
Not available
Wheels and Tires
Wheel Size
14 x 5
Wheel Type/Material
Cast alloy
Tire Size
185/60R14
Tire Manufacturer and Model
Bridgestone

1989 I-Mark RS

General Information
Manufacturer
Isuzu Motors, Ltd., Fujisawa, Japan
Importer
American Isuzu Motors, Inc., Whitier, California
Body Style
4-passenger two door hatchback or four door compact sports sedan
Drivetrain Layout
Front Engine, Front Drive
Body/Frame
Uni-body
Price
$9,359-11,068
Options
Recaro seats
Typical Market Competition
Mazda 323 GTX, Mitsubishi Mirage Turbo, Volkswagen GTI 16V
Dimensions
Wheelbase
94.5 in / 2400 m
Track
Front
55.4 in / 1406 mm
Rear
54.6 in / 1386 mm
Length
157.9 in / 4011 mm
Width
63.6 in / 1616 mm
Height
54.1 in / 1375 mm
Ground Clearance
Curb Weight
2167
Weight Distribution
65/35
Cargo Capacity
16 cu ft / 29.7 cu ft
Fuel Capacity
11.1 gal
Weight/Power Ratio
17.34
Engine
Type
Inline 4, liquid cooled, cast iron block, cast aluminum head
Bore x Stroke
3.15 in x 3.11 in / 80.0 mm x 79.0 mm
Displacement
97 ci / 1588 cc
Compression Ratio
9.8:1
Valve Gear
DOHC 4 valves per cylinder
Fuel/Induction System
Electronic Multipoint EFI
Horsepower
125 HP @ 6800 RPM
Torque
102 lb/ft @ 5400 RPM
Horsepower/Liter
78.72
Maximum Engine Speed
7800 RPM
Recommended Fuel
Unleaded Regular
Driveline
Transmission Type
Five speed manual
Gear Ratios
First
3.727
Second
2.043
Third
1.448
Fourth
1.027
Fifth
.829
Axle Ratio
Final Drive Ratio
4.117
Chassis
Suspension
Front
Independent, MacPhereson struts with lower control arm, coil springs, anti-roll bar
Rear
Independent, shock absorber, trailing arm with coil springs, anti-roll bar
Steering
Type
Rack and pinion, power assisted
Ratio
16.1:1
Turns Lock to Lock
2.88
Turning Circle
32.8 ft
Brakes
Front Type/Diameter
Vented discs, 9.02 in
Rear Type/Diameter
drums, 7.09 in
Anti-Lock
Not available
Wheels and Tires
Wheel Size
14 x 5
Wheel Type/Material
Cast alloy
Tire Size
185/60R14
Tire Manufacturer and Model
Bridgestone Potenza RE88