Prelude H22 Turbo Build: How to Reach 250+ Hp with Garret Gtx Series Turbochargers

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The Prelude H22 Turbo Build is an exciting journey for car enthusiasts looking to enhance their vehicle’s performance. With the right components and tuning, reaching over 250 horsepower is achievable using Garrett GTX series turbochargers. This article will guide you through the essential steps and considerations for a successful build.

Understanding the H22 Engine

The Honda H22 engine is a popular choice for turbo builds due to its robust design and performance potential. It features a DOHC design and is known for its high-revving capabilities. Before diving into the turbo build, it’s crucial to understand the engine’s characteristics.

  • Engine Type: 2.2L DOHC I4
  • Stock Horsepower: Approximately 190 hp
  • Stock Torque: Around 160 lb-ft

Choosing the Right Turbocharger

Garrett GTX series turbochargers are renowned for their efficiency and performance. Selecting the right turbocharger is crucial for achieving your horsepower goals. Consider the following factors when making your choice:

  • Turbo Size: Choose a turbo that matches your power goals.
  • Compressor Efficiency: Look for a turbo with high efficiency ratings.
  • Response Time: Consider how quickly the turbo spools up.

Here are some recommended Garrett GTX turbochargers for the H22 build:

  • Garrett GTX2867R
  • Garrett GTX3071R
  • Garrett GTX3582R

Supporting Modifications

To maximize the performance of your turbo setup, supporting modifications are essential. These upgrades will help ensure your engine can handle the increased power and boost.

  • Fuel System Upgrades: High-flow fuel injectors and a larger fuel pump.
  • Exhaust System: A high-performance exhaust manifold and downpipe.
  • Intercooler: A front-mounted intercooler for better charge air cooling.
  • Tuning: A reliable ECU tune to optimize performance.

Installation Process

The installation process for a turbocharger on the H22 engine requires careful planning and execution. Here’s a general outline of the steps involved:

  • Remove the stock intake and exhaust components.
  • Install the turbocharger and associated piping.
  • Upgrade the fuel system components.
  • Install the intercooler and associated plumbing.
  • Connect all electrical components and sensors.
  • Ensure proper oil and coolant lines are installed.

Tuning Your Prelude H22

Once the turbocharger and supporting modifications are installed, tuning is the next critical step. Proper tuning ensures that your engine runs efficiently and reliably. Here are key points to consider:

  • Use a reputable tuner experienced with turbocharged Honda engines.
  • Monitor air-fuel ratios and boost levels during tuning.
  • Make adjustments based on performance data and feedback.

Maintaining Your Turbocharged Prelude

After completing your turbo build, regular maintenance is vital to ensure longevity and performance. Here are some maintenance tips:

  • Regular oil changes with high-quality synthetic oil.
  • Inspect and clean the air filter regularly.
  • Check turbocharger and intercooler for leaks.
  • Monitor boost levels and engine performance.

Conclusion

The Prelude H22 turbo build is an exhilarating project that can yield impressive horsepower gains with the right components and tuning. By following the steps outlined in this guide, you can achieve over 250 hp and enjoy the thrilling performance of your turbocharged Prelude.