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Engine Compression Isuzu Impulse I

Test compression with engine at normal operating temperature, spark plugs removed, throttle valve wide open and engine at cranking speed (300 RPM).

ApplicationSpecification
Compression Ratio
1.9L9.2:1
2.0L Turbo7.9:1
Compression Pressure178 psi (12.5 kg/cm 2 )
Minimum Compression Pressure125 psi (8.8 kg/cm 2 )
Maximum Variation Between Cylinders7 psi (0.6 kg/cm 2 )

COMPRESSION SPECIFICATIONS