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The 4G63 engine, known for its performance potential, is a popular choice among car enthusiasts looking to achieve high horsepower. In this guide, we will take you through the step-by-step process of building a 4G63 engine capable of producing 700 horsepower, along with cost estimates for each stage of the build.
Understanding the 4G63 Engine
The 4G63 is a turbocharged inline-four engine that has gained a reputation for its ability to handle significant power upgrades. Originally found in vehicles like the Mitsubishi Eclipse and Eagle Talon, this engine can be modified extensively to meet high-performance goals.
Step 1: Assessing the Base Engine
Before diving into modifications, it’s essential to assess the condition of your base 4G63 engine. This step will help determine whether you need to rebuild or replace any components.
- Check for oil leaks and wear on gaskets.
- Inspect the cylinder walls for scoring or damage.
- Test compression and leak-down to gauge engine health.
Step 2: Internal Engine Modifications
To achieve 700 horsepower, significant internal modifications are necessary. This includes upgrading pistons, rods, and the crankshaft.
- Pistons: Upgrade to forged pistons for better strength. Estimated cost: $600.
- Connecting Rods: Use forged rods to withstand increased power. Estimated cost: $700.
- Crankshaft: Consider a forged crankshaft for durability. Estimated cost: $800.
Step 3: Cylinder Head Upgrades
The cylinder head is critical for airflow and performance. Upgrading the head can significantly enhance power output.
- Valves: Upgrade to larger valves for improved airflow. Estimated cost: $400.
- Cams: Install performance camshafts for better timing. Estimated cost: $600.
- Porting and Polishing: Improve airflow by porting the head. Estimated cost: $500.
Step 4: Turbocharger and Fuel System
A high-performance turbocharger is essential for reaching 700 horsepower. Additionally, an upgraded fuel system is necessary to support the increased demands.
- Turbocharger: Choose a turbo capable of supporting 700 hp. Estimated cost: $1,200.
- Fuel Injectors: Upgrade to high-flow injectors. Estimated cost: $600.
- Fuel Pump: Install a high-capacity fuel pump. Estimated cost: $300.
Step 5: Engine Management and Tuning
Proper engine management is vital for optimizing performance and reliability. A tuning solution will help manage the increased power effectively.
- ECU Upgrade: Use an aftermarket ECU for better control. Estimated cost: $800.
- Tuning: Professional tuning to optimize performance. Estimated cost: $500.
Step 6: Supporting Modifications
To handle the power of a 700 hp engine, additional supporting modifications are necessary. These will ensure reliability and performance.
- Intercooler: Upgrade to a larger intercooler for better cooling. Estimated cost: $500.
- Exhaust System: Install a high-flow exhaust system. Estimated cost: $700.
- Transmission Upgrade: Consider a stronger transmission to handle the power. Estimated cost: $1,500.
Cost Summary
Here’s a summary of the estimated costs for each step in the build process:
- Internal Engine Modifications: $2,100
- Cylinder Head Upgrades: $1,500
- Turbocharger and Fuel System: $2,100
- Engine Management and Tuning: $1,300
- Supporting Modifications: $2,700
Total Estimated Cost
The total estimated cost for building a 4G63 engine to 700 horsepower is approximately $9,700. This investment will result in a powerful and reliable engine capable of delivering an exhilarating driving experience.
Conclusion
Building a 4G63 engine to reach 700 horsepower is a challenging yet rewarding endeavor. By following this step-by-step guide and understanding the costs involved, you can make informed decisions that will lead to a successful build.