1951 Alvis TB 21 vs. 1987 Pontiac Firebird
To start off, 1987 Pontiac Firebird is newer by 36 year(s). Which means there will be less support and parts availability for 1951 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TB 21 would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1987 Pontiac Firebird (133 HP @ 5100 RPM) has 42 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1987 Pontiac Firebird should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1987 Pontiac Firebird (230 Nm) has 26 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1987 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TB 21.
Compare all specifications:
1951 Alvis TB 21 | 1987 Pontiac Firebird | |
Make | Alvis | Pontiac |
Model | TB 21 | Firebird |
Year Released | 1951 | 1987 |
Engine Position | Front | Front |
Engine Size | 2993 cc | 2825 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 91 HP | 133 HP |
Engine RPM | 4000 RPM | 5100 RPM |
Torque | 204 Nm | 230 Nm |
Engine Bore Size | 84 mm | 88.9 mm |
Engine Stroke Size | 90 mm | 75.9 mm |
Engine Compression Ratio | 7.1:1 | 8.5:1 |
Fuel Type | Gasoline | Gasoline |
Number of Seats | 5 seats | 4 seats |
Vehicle Length | 4430 mm | 4850 mm |
Vehicle Width | 1680 mm | 1860 mm |
Wheelbase Size | 2750 mm | 2580 mm |