Section 8 (Engine Mechanical (STI)): General Description: Specification: Notes
WARNING: This page is about a different variant/trim than selected.
ENGINE MECHANICAL SPECIFICATION
| Engine | Model | 2.5 L | ||||
| Cylinder arrangement | Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine |
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| Valve system mechanism | Belt driven, double overhead camshaft, 4-valve/cylinder | |||||
| Bore x Stroke | mm (in) | 99.5 x 79.0 (3.92 x 3.11) | ||||
| Displacement | cm3 (cu in) | 2, 457 (150) | ||||
| Compression ratio | 8.2 | |||||
| Compression pressure (at 200 - 300 r/min) | kPa (kg/cm2 , psi) | Standard | 981 - 1, 177 (10 - 12, 142 - 171) | |||
| Number of piston rings | Compression ring: 2 Oil ring: 1 |
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| Intake valve timing | Open | Max. retard | ATDC 5° | |||
| Min. advance | BTDC 47° | |||||
| Close | Max. retard | ABDC 65° | ||||
| Min. advance | ABDC 13° | |||||
| Exhaust valve timing | Open | Max. retard | BBDC 28° | |||
| Min. advance | BBDC 72° | |||||
| Close | Max. retard | ATDC 32° | ||||
| Min. advance | BTDC 12° | |||||
| Valve clearance | mm (in) | Inspection value | Intake | 0.20+0.04-0.06 (0.0079+0.0016-0.0024 ) | ||
| Exhaust | 0.35±0.05 (0.0138±0.0020) | |||||
| Adjustment value | Intake | 0.20+0.01-0.03 (0.0079+0.0004-0.0012 ) | ||||
| Exhaust | 0.35±0.02 (0.0138±0.0008) | |||||
| Idle speed (Gear shift lever is in neutral) | r/min | No load | Standard | 700±100 | ||
| A/C ON | Standard | 750±100 | ||||
| Ignition order | 1 → 3 → 2 → 4 | |||||
| Ignition timing | BTDC/{r/min} | Standard | 15°±10°/700 | |||