1981 Porsche 928 Technical Specifications
The Porsche Model 928 was launched in 1977 and was powered by a water-cooled V-8 engine. Porsche upgraded the engine from mechanical to electronic fuel injection in 1980 for US models, although power remained the same. Below are the specifications and performance for the 1981 model year 928.
| Model Year & Variant | 1981 928 |
| Model Year | 1981 |
| Model Variant | 928 |
| Type | V8 |
| Induction | Normally-aspirated |
| Cooling | Water-cooled |
| Valvetrain | Single overhead camshafts |
| Injection | Port injection |
| Bore & Stroke | 3.74 in/95.0 mm x 3.12 in/78.9 mm |
| Displacement | 272.91 ci/4,474 cc |
| Power | 231 @ 5500 rpm |
| Torque | 265 lb-ft @ 4000 rpm |
| Max RPM | 6000 rpm |
| Compression Ratio | 9.0:1 |
| Transmission | 5-speed manual, 3-speed auto |
| Layout | Front-engined, rear-wheel drive |
| Curb Weight | CURB WEIGHT3,197 lbs. manual/3,285 lbs. auto |
| Height | 51.61 in/1,311 mm |
| Ground Clearance | 4.69 in/119 mm |
| Length | 175.67 in/4,462 mm |
| Wheelbase | 98.43 in/2,500 mm |
| Width | 72.28 in/1,836 mm |
| Track Front | 61.06 in/1,551 mm |
| Track Rear | 60.24 in/1,530 mm |
| Drag Coefficient | 0.38 |
| Wheel Size Front | 16 x 7 |
| Wheel Size Rear | 16 x 7 |
| Tire Size Front | 225/50VR-16 |
| Tire Size Rear | 225/50VR-16 |
| Brake Caliper Front | Floating 1-piston |
| Brake Caliper Rear | Floating 1-piston |
| Brake Disc Type Front | Ventilated discs |
| Brake Disc Type Rear | Ventilated discs |
| Brake | 11.10 in/282 mm x .81 in/20.6 mm |
| Brake Disc Size Rear | 11.42 in/290 mm x .81 in/20.6 mm |
| 0 to 60 mph time | N/A |
| Top Speed (Automatic) | 143 mph manual/140 mph automatic |
| Top Speed (Manual) | |
| MPG City | N/A |
| MPG Highway | N/A |
| MPG Combined | N/A |
| Fuel Tank Capacity | 22.7 U.S. gallons |
| Required Octane | Premium unleaded (91+) |
