1973 Pontiac Firebird 5.7 vs. 1973 Pontiac Firebird 7.5
To start off, both 1973 Pontiac Firebird 5.7 and 1973 Pontiac Firebird 7.5 were released in the same year (1973). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 7,462 cc (8 cylinders), 1973 Pontiac Firebird 7.5 is equipped with a bigger engine. In terms of performance, 1973 Pontiac Firebird 7.5 (296 HP @ 4000 RPM) has 138 more horse power than 1973 Pontiac Firebird 5.7. (158 HP @ 4400 RPM) In normal driving conditions, 1973 Pontiac Firebird 7.5 should accelerate faster than 1973 Pontiac Firebird 5.7. With that said, vehicle weight also plays an important factor in acceleration. 1973 Pontiac Firebird 7.5 weights approximately 165 kg more than 1973 Pontiac Firebird 5.7. 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, 1973 Pontiac Firebird 7.5 (563 Nm @ 3200 RPM) has 197 more torque (in Nm) than 1973 Pontiac Firebird 5.7. (366 Nm @ 2000 RPM). This means 1973 Pontiac Firebird 7.5 will have an easier job in driving up hills or pulling heavy equipment than 1973 Pontiac Firebird 5.7.
Compare all specifications:
1973 Pontiac Firebird 5.7 | 1973 Pontiac Firebird 7.5 | |
Make | Pontiac | Pontiac |
Model | Firebird | Firebird |
Year Released | 1973 | 1973 |
Body Type | Coupe | Coupe |
Engine Position | Front | Front |
Engine Size | 5792 cc | 7462 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Horse Power | 158 HP | 296 HP |
Engine RPM | 4400 RPM | 4000 RPM |
Torque | 366 Nm | 563 Nm |
Torque RPM | 2000 RPM | 3200 RPM |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | Rear |
Number of Seats | 4 seats | 4 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1585 kg | 1750 kg |
Vehicle Length | 4880 mm | 4870 mm |
Vehicle Width | 1870 mm | 1870 mm |
Vehicle Height | 1290 mm | 1290 mm |
Wheelbase Size | 2750 mm | 2750 mm |