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Engine Compression

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
Amigo, Pickup & Rodeo
2.3L & 2.6L 8.3:1
3.1L 8.5:1
Impulse
Non-Turbo
1.6L 9.8:1
1.8L 9.7:1
Turbo 8.5:1
Stylus
SOHC 9.1:1
DOHC
1.6L 9.8:1
1.8L 9.7:1
Trooper
SOHC 9.3:1
DOHC 9.8:1
Compression Pressure
Amigo, Pickup & Rodeo
2.3L & 2.6L (1) 142-171 psi (9.9-12.0 kg/cm2 )
3.1L (2)
Impulse
1.6L
Non-Turbo (3) 185 psi (13.0 kg/cm2 )
Turbo 170 psi (12.0 kg/cm2 )
1.8L 185 psi (13.0 kg/cm2 )
Stylus
SOHC 178 psi (12.5 kg/cm2 )
DOHC 185 psi (13.0 kg/cm2 )
Trooper
SOHC 170 psi (12.0 kg/cm2 )
DOHC 178 psi (12.5 kg/cm2 )
(1) Minimum pressure is 114 psi (8.0 kg/cm2 ).
(2) Information is not available from manufacturer.
(3) Minimum pressure is 128 psi (9.0 kg/cm2 ).