1968 Triumph 2.5 vs. 1978 Pontiac Firebird
To start off, 1978 Pontiac Firebird is newer by 10 year(s). Which means there will be less support and parts availability for 1968 Triumph 2.5. In addition, the cost of maintenance, including insurance, on 1968 Triumph 2.5 would be higher. At 4,942 cc (8 cylinders), 1978 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1978 Pontiac Firebird (200 HP @ 4000 RPM) has 50 more horse power than 1968 Triumph 2.5. (150 HP @ 5500 RPM) In normal driving conditions, 1978 Pontiac Firebird should accelerate faster than 1968 Triumph 2.5. With that said, vehicle weight also plays an important factor in acceleration. 1978 Pontiac Firebird weights approximately 452 kg more than 1968 Triumph 2.5. 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, 1978 Pontiac Firebird (459 Nm @ 2000 RPM) has 237 more torque (in Nm) than 1968 Triumph 2.5. (222 Nm @ 3500 RPM). This means 1978 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1968 Triumph 2.5.
Compare all specifications:
1968 Triumph 2.5 | 1978 Pontiac Firebird | |
Make | Triumph | Pontiac |
Model | 2.5 | Firebird |
Year Released | 1968 | 1978 |
Engine Position | Front | Front |
Engine Size | 2498 cc | 4942 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Horse Power | 150 HP | 200 HP |
Engine RPM | 5500 RPM | 4000 RPM |
Torque | 222 Nm | 459 Nm |
Torque RPM | 3500 RPM | 2000 RPM |
Engine Bore Size | 74.7 mm | 101.6 mm |
Engine Stroke Size | 95 mm | 76.2 mm |
Engine Compression Ratio | 9.5:1 | 7.5:1 |
Fuel Type | Gasoline | Gasoline |
Top Speed | 171 km/hour | 190 km/hour |
Drive Type | Rear | Rear |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1133 kg | 1585 kg |
Vehicle Length | 4420 mm | 4880 mm |
Vehicle Width | 1660 mm | 1870 mm |
Wheelbase Size | 2700 mm | 2750 mm |