1978 Porsche 928 Technical Specifications
The Porsche Model 928 was launched in 1977 and was powered by a water-cooled V-8 engine. Not only was it a different design compared to the 911 model, but its engine was also cooled differently. Originally displacing 4.5 L and featuring a single overhead camshaft design, it was rated at 219 hp (163 kW; 222 PS) for the North American market and 240 PS (177 kW; 237 hp) in other markets.
| Model Year & Variant | 1978 928 |
| Model Year | 1978 |
| 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 | 230 @ 5250 rpm |
| Torque | 253 lb-ft @ 3600 rpm |
| Max RPM | 6000 rpm |
| Compression Ratio | 8.5:1 |
| Transmission | 5-speed manual, 3-speed auto |
| Layout | Front-engined, rear-wheel drive |
| Curb Weight | 3,197 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+) |
