Table of Contents
The Subaru WRX has long been a favorite among automotive enthusiasts, known for its performance and tuning potential. In this article, we will explore the cost comparison between a stock WRX and an E85 conversion with a 400 horsepower build. This analysis will help you understand the financial implications of upgrading your vehicle for enhanced performance.
Understanding the Stock WRX
The stock Subaru WRX comes equipped with a turbocharged engine that provides a thrilling driving experience. However, many enthusiasts look to enhance performance through modifications. Before diving into costs, it’s essential to understand the baseline performance and features of a stock WRX.
- Engine: 2.0L turbocharged flat-four
- Power Output: Approximately 268 hp
- Transmission: 6-speed manual or CVT
- Drivetrain: All-wheel drive
The E85 Conversion
Converting a WRX to run on E85 fuel can significantly increase power output due to the higher octane rating and cooling properties of the fuel. This section will cover the components and costs associated with an E85 conversion.
- Fuel System Upgrades:
- High-flow fuel pump
- Fuel injectors
- Fuel lines and fittings
- Tuning:
- ECU remapping
- Dyno tuning session
- Miscellaneous:
- Flex fuel sensor
- Additional cooling modifications
Cost Breakdown for E85 Conversion
To provide a clear picture of the financial investment required for an E85 conversion, we will break down the costs associated with each component.
- High-flow fuel pump: $300 – $600
- Fuel injectors: $400 – $800
- Fuel lines and fittings: $100 – $200
- ECU remapping: $200 – $500
- Dyno tuning session: $300 – $600
- Flex fuel sensor: $150 – $300
- Additional cooling modifications: $200 – $500
Total Estimated Costs
Based on the components listed above, the total estimated cost for an E85 conversion on a Subaru WRX can range from approximately $1,850 to $3,500. This investment can yield significant performance gains, particularly when aiming for a 400 horsepower build.
Building to 400 Horsepower
Achieving 400 horsepower in a WRX requires additional modifications beyond the E85 conversion. Below are the key components necessary for reaching this power level.
- Upgraded turbocharger
- Intercooler upgrade
- Performance exhaust system
- Upgraded engine internals (pistons, rods)
- High-performance clutch
Cost Breakdown for 400 HP Build
The following is a breakdown of the costs associated with building a WRX to achieve 400 horsepower.
- Upgraded turbocharger: $1,000 – $2,500
- Intercooler upgrade: $500 – $1,200
- Performance exhaust system: $500 – $1,000
- Upgraded engine internals: $1,500 – $3,000
- High-performance clutch: $300 – $600
Total Estimated Costs for 400 HP Build
The total estimated cost for building a WRX to 400 horsepower can range from approximately $4,800 to $8,400. This includes the costs of the E85 conversion and additional performance upgrades.
Comparing Stock WRX vs E85 Conversion with 400 HP Build
Now that we have outlined the costs associated with both the stock WRX and the E85 conversion with a 400 horsepower build, let’s compare the two options.
- Stock WRX Cost: Approximately $28,000
- E85 Conversion Cost: $1,850 – $3,500
- 400 HP Build Cost: $4,800 – $8,400
- Total Investment for E85 and 400 HP: $34,650 – $39,900
Conclusion
In conclusion, converting a stock Subaru WRX to run on E85 and building it to 400 horsepower can be a worthwhile investment for performance enthusiasts. While the initial cost of a stock WRX is significant, the potential for increased power and driving enjoyment may justify the expense. Careful consideration of the costs involved will help you make an informed decision on your automotive journey.