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The world of high-performance engines offers various options for enthusiasts looking to maximize power and performance. Among these options, the Subaru EJ257 and a fully built 700 HP race engine stand out. This article will provide a comprehensive cost comparison between the stock EJ257 engine and a fully built 700 HP race engine, highlighting the key factors that influence overall expenses.
Understanding the EJ257 Engine
The EJ257 is a turbocharged flat-four engine commonly found in Subaru models like the WRX and STI. Known for its reliability and tuning potential, the EJ257 serves as a strong foundation for performance builds. However, it has its limitations when it comes to achieving extreme power levels.
Stock EJ257 Specifications
The stock EJ257 engine typically produces around 300 horsepower and 300 lb-ft of torque. Here are some key specifications:
- Displacement: 2.5 liters
- Configuration: Flat-four (Boxer)
- Turbocharged: Yes
- Fuel system: Direct injection
Cost of a Stock EJ257 Engine
The cost of a stock EJ257 engine can vary based on several factors, including condition, mileage, and sourcing location. Here’s a breakdown of typical costs:
- Used engine: $1,500 – $3,000
- Rebuilt engine: $3,000 – $5,000
- Installation costs: $500 – $1,500
Transitioning to a Fully Built 700 HP Race Engine
A fully built 700 HP race engine represents a significant upgrade over the stock EJ257. This engine is designed for high-performance applications and can withstand the stresses of competitive racing. However, the costs associated with building such an engine can be substantial.
Key Components of a Fully Built Race Engine
To achieve 700 horsepower, several components must be upgraded or replaced. Here are some of the essential parts:
- Forged internals (pistons, rods, crankshaft)
- High-performance turbocharger
- Upgraded fuel injectors and fuel pump
- Aftermarket engine management system
- High-flow intercooler
- Performance exhaust system
Cost Breakdown of a Fully Built 700 HP Race Engine
The costs associated with building a fully built 700 HP race engine can add up quickly. Here’s a detailed breakdown:
- Base engine (EJ257): $1,500 – $3,000
- Forged internals: $2,000 – $4,000
- Turbocharger: $1,500 – $3,000
- Fuel system upgrades: $1,000 – $2,000
- Engine management: $1,000 – $2,000
- Installation and tuning: $1,500 – $3,000
- Miscellaneous parts (gaskets, fluids, etc.): $500 – $1,000
Total Cost Comparison
When comparing the total costs, it becomes evident that building a fully built 700 HP race engine is a significant investment. Here’s a summary of the costs:
- Stock EJ257 total cost: $2,000 – $6,500
- Fully built 700 HP race engine total cost: $10,000 – $20,000
Conclusion
Choosing between a stock EJ257 engine and a fully built 700 HP race engine involves weighing the costs against performance goals. While the stock engine offers a more budget-friendly option, the fully built engine provides unparalleled power and performance for racing enthusiasts. Ultimately, the decision will depend on individual preferences, budget, and intended use.