1975 Triumph TR7 vs. 1963 Triumph Herald
To start off, 1975 Triumph TR7 is newer by 12 year(s). Which means there will be less support and parts availability for 1963 Triumph Herald. In addition, the cost of maintenance, including insurance, on 1963 Triumph Herald would be higher. At 1,998 cc (4 cylinders), 1975 Triumph TR7 is equipped with a bigger engine. In terms of performance, 1975 Triumph TR7 (104 HP @ 5500 RPM) has 66 more horse power than 1963 Triumph Herald. (38 HP @ 4500 RPM). In normal driving conditions, 1975 Triumph TR7 should accelerate faster than 1963 Triumph Herald. With that said, vehicle weight also plays an important factor in acceleration. 1975 Triumph TR7 weights approximately 265 kg more than 1963 Triumph Herald. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1975 Triumph TR7 (161 Nm @ 3500 RPM) has 78 more torque (in Nm) than 1963 Triumph Herald. (83 Nm @ 2250 RPM). This means 1975 Triumph TR7 will have an easier job in driving up hills or pulling heavy equipment than 1963 Triumph Herald.
Compare all specifications:
| 1975 Triumph TR7 | 1963 Triumph Herald | |
| Make | Triumph | Triumph |
| Model | TR7 | Herald |
| Year Released | 1975 | 1963 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1147 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 38 HP |
| Engine RPM | 5500 RPM | 4500 RPM |
| Torque | 161 Nm | 83 Nm |
| Torque RPM | 3500 RPM | 2250 RPM |
| Engine Bore Size | 90.3 mm | 69.3 mm |
| Engine Stroke Size | 78 mm | 76 mm |
| Engine Compression Ratio | 9.3:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1045 kg | 780 kg |
| Vehicle Length | 4070 mm | 3890 mm |
| Vehicle Width | 1690 mm | 1530 mm |
| Vehicle Height | 1270 mm | 1510 mm |
| Wheelbase Size | 2170 mm | 2320 mm |
| Fuel Tank Capacity | 63 L | 29 L |
