1986 Porsche 928 vs. 1981 Porsche 911
To start off, 1986 Porsche 928 is newer by 5 year(s). Which means there will be less support and parts availability for 1981 Porsche 911. In addition, the cost of maintenance, including insurance, on 1981 Porsche 911 would be higher. At 4,957 cc (8 cylinders), 1986 Porsche 928 is equipped with a bigger engine. In terms of performance, 1986 Porsche 928 (321 HP @ 6000 RPM) has 89 more horse power than 1981 Porsche 911. (232 HP @ 5900 RPM). In normal driving conditions, 1986 Porsche 928 should accelerate faster than 1981 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 1986 Porsche 928 weights approximately 290 kg more than 1981 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1986 Porsche 928 (430 Nm @ 3000 RPM) has 146 more torque (in Nm) than 1981 Porsche 911. (284 Nm @ 4800 RPM). This means 1986 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1981 Porsche 911.
Compare all specifications:
| 1986 Porsche 928 | 1981 Porsche 911 | |
| Make | Porsche | Porsche |
| Model | 928 | 911 |
| Year Released | 1986 | 1981 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 4957 cc | 3164 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 321 HP | 232 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 430 Nm | 284 Nm |
| Torque RPM | 3000 RPM | 4800 RPM |
| Engine Bore Size | 100 mm | 95 mm |
| Engine Stroke Size | 78.9 mm | 74.4 mm |
| Engine Compression Ratio | 10.0:1 | 10.3:1 |
| Top Speed | 274 km/hour | 246 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1550 kg | 1260 kg |
| Vehicle Length | 4450 mm | 4300 mm |
| Vehicle Width | 1840 mm | 1660 mm |
| Vehicle Height | 1290 mm | 1330 mm |
| Wheelbase Size | 2510 mm | 2270 mm |
