1975 Pontiac Firebird 4.1 vs. 1975 Pontiac Firebird 5.7

To start off, both 1975 Pontiac Firebird 4.1 and 1975 Pontiac Firebird 5.7 were released in the same year (1975). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,792 cc (8 cylinders), 1975 Pontiac Firebird 5.7 is equipped with a bigger engine. In terms of performance, 1975 Pontiac Firebird 5.7 (158 HP @ 4400 RPM) has 50 more horse power than 1975 Pontiac Firebird 4.1. (108 HP @ 3600 RPM) In normal driving conditions, 1975 Pontiac Firebird 5.7 should accelerate faster than 1975 Pontiac Firebird 4.1. With that said, vehicle weight also plays an important factor in acceleration. 1975 Pontiac Firebird 5.7 weights approximately 115 kg more than 1975 Pontiac Firebird 4.1. 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, 1975 Pontiac Firebird 5.7 (366 Nm @ 2000 RPM) has 129 more torque (in Nm) than 1975 Pontiac Firebird 4.1. (237 Nm @ 1600 RPM). This means 1975 Pontiac Firebird 5.7 will have an easier job in driving up hills or pulling heavy equipment than 1975 Pontiac Firebird 4.1.

Compare all specifications:

1975 Pontiac Firebird 4.1 1975 Pontiac Firebird 5.7
Make Pontiac Pontiac
Model Firebird Firebird
Year Released 1975 1975
Body Type Coupe Coupe
Engine Position Front Front
Engine Size 4093 cc 5792 cc
Engine Cylinders 6 cylinders 8 cylinders
Engine Type in-line V
Horse Power 108 HP 158 HP
Engine RPM 3600 RPM 4400 RPM
Torque 237 Nm 366 Nm
Torque RPM 1600 RPM 2000 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 1470 kg 1585 kg
Vehicle Length 4880 mm 4880 mm
Vehicle Width 1870 mm 1870 mm
Vehicle Height 1290 mm 1290 mm
Wheelbase Size 2750 mm 2750 mm


 

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