1961 Triumph TR3 vs. 1977 Triumph TR7
To start off, 1977 Triumph TR7 is newer by 16 year(s). Which means there will be less support and parts availability for 1961 Triumph TR3. In addition, the cost of maintenance, including insurance, on 1961 Triumph TR3 would be higher. At 2,138 cc (4 cylinders), 1961 Triumph TR3 is equipped with a bigger engine. In terms of performance, 1977 Triumph TR7 (104 HP @ 5500 RPM) has 3 more horse power than 1961 Triumph TR3. (101 HP @ 4600 RPM) In normal driving conditions, 1977 Triumph TR7 should accelerate faster than 1961 Triumph TR3. With that said, vehicle weight also plays an important factor in acceleration. 1977 Triumph TR7 weights approximately 141 kg more than 1961 Triumph TR3. 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, 1961 Triumph TR3 (172 Nm @ 3350 RPM) has 11 more torque (in Nm) than 1977 Triumph TR7. (161 Nm @ 3500 RPM). This means 1961 Triumph TR3 will have an easier job in driving up hills or pulling heavy equipment than 1977 Triumph TR7.
Compare all specifications:
| 1961 Triumph TR3 | 1977 Triumph TR7 | |
| Make | Triumph | Triumph |
| Model | TR3 | TR7 |
| Year Released | 1961 | 1977 |
| Body Type | Roadster | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2138 cc | 1996 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 101 HP | 104 HP |
| Engine RPM | 4600 RPM | 5500 RPM |
| Torque | 172 Nm | 161 Nm |
| Torque RPM | 3350 RPM | 3500 RPM |
| Engine Bore Size | 86 mm | 90.3 mm |
| Engine Stroke Size | 92 mm | 78 mm |
| Engine Compression Ratio | 9.0:1 | 9.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 904 kg | 1045 kg |
| Vehicle Length | 3840 mm | 4070 mm |
| Vehicle Width | 1420 mm | 1690 mm |
| Vehicle Height | 1280 mm | 1270 mm |
| Wheelbase Size | 2240 mm | 2170 mm |
| Fuel Tank Capacity | 53 L | 55 L |
