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The 4G63 engine, known for its robust performance and tuning potential, has been a favorite among car enthusiasts, especially in the Mitsubishi community. Achieving 400 horsepower on a budget is a challenge that many gearheads undertake, often turning to reputable brands like AMS and HKS for their aftermarket parts. In this article, we will explore the strategies, parts, and considerations for building a cost-effective 4G63 engine that can deliver impressive power without breaking the bank.
Understanding the 4G63 Engine
The 4G63 is a 2.0L inline-four engine that has been used in various Mitsubishi models, including the Eclipse, Talon, and Galant. It features a DOHC design and has a reputation for being highly tunable. The engine’s strength lies in its forged internals, making it capable of handling significant power increases with the right modifications.
Setting a Budget for Your Build
Before diving into the specifics of parts and modifications, it’s essential to set a realistic budget for your 4G63 build. A well-planned budget can help you prioritize essential upgrades and avoid overspending. Here are some tips for setting a budget:
- Determine your overall budget, including labor and parts.
- Research the cost of essential components.
- Allocate funds for unexpected expenses.
- Consider purchasing used parts to save money.
Essential Upgrades for Achieving 400 HP
To achieve 400 horsepower, several key upgrades are necessary. Below are the essential components and modifications that will help you reach your power goals with AMS or HKS parts.
Turbocharger Upgrade
The turbocharger is one of the most critical components in your build. Upgrading to a larger turbo from AMS or HKS can significantly increase airflow and boost pressure. Options like the HKS GT series or AMS 2.0 Turbo can provide the necessary power increase.
Fuel System Enhancements
A robust fuel system is vital for supporting higher horsepower levels. Upgrading to a larger fuel pump, such as the AMS fuel pump, and larger injectors will ensure your engine receives the necessary fuel. Consider using:
- AMS 255 LPH Fuel Pump
- HKS 850cc Fuel Injectors
Engine Management System
Proper tuning is essential for maximizing performance. An aftermarket engine management system, such as the HKS F-Con or AMS standalone ECU, will allow for precise tuning of fuel and ignition maps, ensuring your engine runs efficiently at higher power levels.
Exhaust System
Upgrading the exhaust system is crucial for improving airflow and reducing back pressure. Consider using an HKS or AMS cat-back exhaust system for optimal performance. Additionally, a high-flow catalytic converter can further enhance exhaust flow.
Intercooler Upgrade
An efficient intercooler is essential for reducing intake temperatures, allowing for more power. Both AMS and HKS offer high-performance intercoolers that can handle increased boost levels while maintaining optimal temperatures.
Supporting Mods for Reliability
While achieving 400 horsepower is exciting, ensuring the reliability of your build is equally important. Here are some supporting modifications to consider:
- Upgraded head gasket for improved sealing.
- ARP head studs for added strength.
- Performance camshafts for better airflow.
- Aftermarket oil cooler to maintain engine temperatures.
Building for Longevity
To ensure your 4G63 engine remains reliable at 400 horsepower, regular maintenance and monitoring are crucial. Here are some tips for maintaining your build:
- Regular oil changes with high-quality synthetic oil.
- Monitor boost levels and engine temperatures.
- Inspect components regularly for wear and tear.
- Keep an eye on fuel quality and tuning adjustments.
Conclusion
Building a cost-effective 4G63 engine that achieves 400 horsepower is entirely possible with the right approach and parts from AMS or HKS. By focusing on essential upgrades, supporting modifications, and maintaining your engine, you can enjoy the thrill of high-performance driving without overspending. With careful planning and execution, your 4G63 can become a powerful and reliable machine.