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The H22 engine is a popular choice among car enthusiasts looking to build a powerful turbocharged setup. With the right components, achieving 400+ horsepower is not only possible but can also provide an exhilarating driving experience. In this article, we will delve into the essential components required for a successful H22 turbo build.
Understanding the H22 Engine
The H22 engine, known for its high-revving capabilities and solid performance, comes from Honda’s family of engines. It features a DOHC design and is commonly found in models like the Honda Prelude and Accord. The engine’s robust internals make it a great candidate for turbocharging.
Key Components for a Turbo Build
- Turbocharger: The heart of your turbo build, choose a turbo that can support 400+ hp.
- Fuel System: Upgraded fuel injectors and a high-flow fuel pump are essential.
- Engine Management: A standalone ECU or a reflash is necessary for tuning.
- Intercooler: An efficient intercooler will help reduce intake temperatures.
- Exhaust System: A high-flow exhaust will improve turbo efficiency.
Choosing the Right Turbocharger
Selecting the right turbocharger is crucial for achieving your horsepower goals. Look for a turbo that matches your desired power output and has a suitable response time. Popular options for H22 builds include:
- Garrett GT30
- Precision 6266
- BorgWarner EFR 7670
Upgrading the Fuel System
To support increased horsepower, your fuel system needs to be upgraded. This includes:
- Fuel Injectors: Choose high-flow injectors rated for at least 1000cc/min.
- Fuel Pump: A high-performance fuel pump, such as the AEM 340, is recommended.
Engine Management Solutions
An efficient engine management system is key to optimizing performance and reliability. Options include:
- Standalone ECU: Systems like the AEM Infinity provide extensive tuning capabilities.
- Reflash Options: Hondata and Ktuner offer reflash solutions for easier tuning.
Supporting Modifications
In addition to the main components, several supporting modifications can enhance your H22 turbo build:
- Forged Internals: Upgrading to forged pistons and rods can improve reliability.
- Head Work: Porting and polishing the cylinder head can increase airflow.
- Aftermarket Camshafts: Performance camshafts can improve power delivery.
Conclusion
Building a turbocharged H22 engine capable of producing 400+ horsepower requires careful selection of components and modifications. By investing in the right turbocharger, fuel system, and engine management, along with supporting upgrades, you can create a powerful and reliable setup that delivers thrilling performance.