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The Nissan S14 240SX is a beloved platform among car enthusiasts, especially those looking to build a reliable and powerful drift car or street machine. Achieving 300 wheel horsepower (WHP) is a common goal for many S14 owners, and with the right parts from reputable brands like HKS and Garrett, this goal is attainable. In this article, we will break down the costs associated with building an S14 240SX to reach that 300 WHP mark.
Understanding the S14 240SX Platform
The S14 240SX, produced from 1995 to 1998, features a lightweight chassis and a rear-wheel-drive layout, making it an ideal candidate for performance modifications. The stock engine, the KA24DE, is a 2.4-liter inline-four that can be built to handle increased power with the right modifications.
Key Components for Achieving 300 WHP
- Turbocharger
- Fuel System Upgrade
- ECU Tuning
- Exhaust System
- Intercooler
- Intake System
1. Turbocharger
The turbocharger is the heart of your performance build. For this setup, a Garrett GT2871R turbo is a popular choice, known for its ability to produce significant power while maintaining reliability.
Cost: Approximately $1,200
2. Fuel System Upgrade
To support the increased power output, an upgraded fuel system is crucial. This includes larger fuel injectors and a high-flow fuel pump. HKS offers quality injectors that can handle the demands of a turbocharged setup.
Cost: Around $600
3. ECU Tuning
Proper tuning is essential to maximize performance and ensure engine safety. An aftermarket ECU or a tuning solution, such as an HKS F-Con, will allow for precise adjustments to fuel maps and ignition timing.
Cost: Approximately $800
4. Exhaust System
A free-flowing exhaust system helps reduce back pressure and improves turbo efficiency. An HKS Hi-Power exhaust is a popular choice among enthusiasts for its performance and sound.
Cost: About $700
5. Intercooler
To keep intake temperatures low and prevent knock, an efficient intercooler is necessary. A Garrett front-mount intercooler is an excellent option to ensure optimal performance.
Cost: Roughly $500
6. Intake System
An upgraded intake system, including a high-flow air filter and intake piping, will help the engine breathe better, further enhancing performance.
Cost: Approximately $300
Additional Costs
In addition to the main components, there are other costs to consider when building your S14 240SX to 300 WHP.
- Labor Costs: $1,000 (if not DIY)
- Miscellaneous Parts (hoses, clamps, etc.): $200
- Dyno Tuning Session: $300
Total Cost Breakdown
Now that we have outlined the major components and additional costs, let’s summarize the total investment required to achieve 300 WHP on an S14 240SX.
- Turbocharger: $1,200
- Fuel System Upgrade: $600
- ECU Tuning: $800
- Exhaust System: $700
- Intercooler: $500
- Intake System: $300
- Labor Costs: $1,000
- Miscellaneous Parts: $200
- Dyno Tuning Session: $300
Total Estimated Cost: $5,600
Conclusion
Achieving 300 WHP on an S14 240SX is a challenging yet rewarding endeavor. With careful planning, the right parts from HKS and Garrett, and a commitment to quality, you can transform your S14 into a powerful machine. Understanding the costs involved will help you budget effectively and ensure a successful build.