S2000 Ap2 Turbo Build: from Stock to 300+ Hp with $4,000 in Upgrades

The Honda S2000 is a beloved sports car known for its high-revving engine and exceptional handling. However, many enthusiasts seek to unlock even more performance from this already impressive vehicle. In this article, we will explore how to build an S2000 AP2 turbo setup, transforming it from stock to over 300 horsepower with a budget of $4,000 in upgrades.

Understanding the S2000 AP2

The S2000 AP2, produced from 2004 to 2009, features a 2.2-liter F22C1 engine. This engine produces around 240 horsepower and is known for its high-revving capabilities. While the stock performance is impressive, many owners look to turbocharging as a means to significantly increase horsepower and torque.

Setting a Budget

Before diving into the build, it’s essential to establish a clear budget. With a limit of $4,000, careful planning and prioritization of upgrades will be crucial. Here’s a breakdown of the expected costs:

  • Turbocharger kit: $2,000
  • Fuel system upgrades: $800
  • ECU tuning: $600
  • Exhaust modifications: $400

Essential Upgrades for Turbocharging

1. Turbocharger Kit

The heart of any turbo build is the turbocharger itself. A quality turbo kit designed specifically for the S2000 is essential for achieving reliable power gains. Look for kits that include:

  • Turbocharger
  • Manifold
  • Intercooler
  • Piping and hoses

2. Fuel System Upgrades

Increased horsepower requires more fuel. Upgrading the fuel system is critical to support the turbocharger. Key components to consider include:

  • High-flow fuel injectors
  • Upgraded fuel pump
  • Fuel pressure regulator

3. ECU Tuning

After installing the turbo and fuel upgrades, it’s essential to tune the ECU. This process optimizes the engine’s performance and ensures safe operation. Options include:

  • Custom tuning by a professional
  • ECU reflash or standalone ECU

4. Exhaust Modifications

A free-flowing exhaust system is crucial for maximizing turbo performance. Consider upgrading to:

  • High-performance cat-back exhaust
  • Downpipe

Installation Process

Installing a turbo kit can be a complex process. Here’s a general overview of the steps involved:

  • Remove the stock intake and exhaust components.
  • Install the turbo manifold and turbocharger.
  • Connect the intercooler and piping.
  • Upgrade the fuel injectors and pump.
  • Install the upgraded exhaust components.
  • Tune the ECU for optimal performance.

Expected Performance Gains

With the upgrades completed, you can expect substantial gains in horsepower and torque. Here’s a general idea of what to anticipate:

  • Stock horsepower: 240 HP
  • Target horsepower after upgrades: 300+ HP
  • Improved torque for better acceleration

Conclusion

The S2000 AP2 turbo build is an exciting way to enhance the performance of this iconic sports car. With careful planning and the right upgrades, achieving over 300 horsepower is possible within a $4,000 budget. Always remember to prioritize reliability and safety in your build to enjoy the full potential of your turbocharged S2000.