🔧 Porsche M96/M97 3.4–3.8L Flat-6
The M96 and M97 flat-six engines powered the Porsche 996 and 997 911, Boxster 986/987, and Cayman 987 from 1997 to 2012. Controversial for their "Intermediate Shaft Bearing" (IMS) failure on some early units, the basic architecture was outstanding — lightweight, rev-happy, and delivering up to 381 hp in Turbo S form. Porsche addressed the IMS issue in later production.
Engine
المواصفات التقنية
| Type | DOHC flat-6 |
|---|---|
| Displacement | 3,387–3,800 cc |
| Bore_stroke | 96 × 78 mm (3.4L) |
| Compression | 11.3:1 (3.6L) |
| Horsepower | 296–381 hp range |
| Torque | 340–420 Nm |
| Valvetrain | DOHC 4 valves/cyl VarioCam |
| Block | Aluminium |
| Head | Aluminium |
| Redline | 7,800 rpm |
| Oil Capacity | 8.75 L |
| Weight | 210 kg (dry) |
| Msrp | $7,000–$14,000 (remanufactured, IMS upgrade included) |