What To Know
- As you can see from the table above, the EJ25 has a larger displacement and higher power output than the EJ20.
- The EJ20 is more fuel-efficient and has a better power-to-weight ratio, while the EJ25 is more powerful and has a higher top speed.
- If you are looking for a more powerful engine with a higher top speed, the EJ25 is a better choice.
The Subaru Legacy is a mid-size sedan that has been produced by the Japanese automaker Subaru since 1989. The Legacy has been available with a variety of engines over the years, but two of the most popular have been the EJ20 and EJ25. These two engines are both flat-four designs, but they have different displacements and power outputs.
EJ20 vs. EJ25: Specifications
| Feature | EJ20 | EJ25 |
| — | — | — |
| Displacement | 2.0 liters | 2.5 liters |
| Bore | 92.0 mm | 99.5 mm |
| Stroke | 75.0 mm | 79.0 mm |
| Compression ratio | 10.0:1 | 10.5:1 |
| Horsepower | 148 hp @ 6000 rpm | 175 hp @ 5600 rpm |
| Torque | 145 lb-ft @ 4800 rpm | 166 lb-ft @ 4000 rpm |
| Redline | 7000 rpm | 6500 rpm |
As you can see from the table above, the EJ25 has a larger displacement and higher power output than the EJ20. This is due to its larger bore and stroke. The EJ25 also has a higher compression ratio, which means that it can extract more power from each combustion cycle.
EJ20 vs. EJ25: Performance
The EJ25 is the more powerful engine, but it is also the heavier engine. This means that the EJ20 has a better power-to-weight ratio than the EJ25. This gives the EJ20 a slight advantage in acceleration and handling.
However, the EJ25 has a higher top speed than the EJ20. This is due to its higher redline. The EJ25 also has more torque than the EJ20, which makes it better suited for towing and hauling.
EJ20 vs. EJ25: Fuel Economy
The EJ20 is the more fuel-efficient engine. This is due to its smaller displacement and lower compression ratio. The EJ20 also has a more efficient valvetrain than the EJ25.
EJ20 vs. EJ25: Reliability
Both the EJ20 and EJ25 are generally reliable engines. However, the EJ20 has a few known issues, including:
- Head gasket failure
- Piston ring failure
- Timing belt failure
The EJ25 is less prone to these issues, but it can still experience them.
Which Engine is Right for You?
The EJ20 and EJ25 are both good engines. The EJ20 is more fuel-efficient and has a better power-to-weight ratio, while the EJ25 is more powerful and has a higher top speed. Ultimately, the best engine for you will depend on your individual needs and preferences.
If you are looking for a fuel-efficient and sporty engine, the EJ20 is a good choice. If you are looking for a more powerful engine with a higher top speed, the EJ25 is a better choice.
EJ20 vs. EJ25: Conclusion
The EJ20 and EJ25 are two of the most popular engines ever used in the Subaru Legacy. Both engines have their own strengths and weaknesses, so it is important to choose the right one for your needs.
FAQ
Q: What is the difference between the EJ20 and EJ25 engines?
A: The EJ25 has a larger displacement and higher power output than the EJ20. This is due to its larger bore and stroke. The EJ25 also has a higher compression ratio.
Q: Which engine is more fuel-efficient?
A: The EJ20 is more fuel-efficient than the EJ25. This is due to its smaller displacement and lower compression ratio.
Q: Which engine is more reliable?
A: Both the EJ20 and EJ25 are generally reliable engines. However, the EJ20 has a few known issues, including head gasket failure, piston ring failure, and timing belt failure. The EJ25 is less prone to these issues, but it can still experience them.