LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 1996 >> Supra 3.0 E >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications >> Mechanical Checks >> Engine Compression
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Compression

Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
Non-Turbo 10.0:1
Turbo 8.5:1
Compression Pressure
Non-Turbo 185 psi (13.0 kg/cm2 )
Turbo 156 psi (10.9 kg/cm2 )
Minimum Compression Pressure
Non-Turbo 156 psi (10.9 kg/cm2 )
Turbo 128 psi (9.0 kg/cm2 )
Maximum Variation Between Cylinders 14 psi (1.0 kg/cm2 )