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The 4G63 turbo motor is a popular choice among performance enthusiasts, particularly for those looking to achieve high horsepower levels. Building a 4G63 motor capable of producing over 700 horsepower requires careful planning, quality parts, and a solid understanding of internal strengthening techniques and upgraded bearings.
Understanding the 4G63 Turbo Motor
The 4G63 engine is a 2.0-liter inline-four engine that was originally produced by Mitsubishi. It has gained a reputation for its robust design and tuning potential, especially in turbocharged configurations. To reach the 700+ horsepower mark, several modifications are necessary.
Internal Strengthening Techniques
To handle the increased power and boost levels, internal strengthening of the 4G63 engine is crucial. The following modifications are commonly recommended:
- Forged Pistons: Upgrading to forged pistons is essential for withstanding high boost pressures and heat.
- Reinforced Connecting Rods: Using stronger connecting rods can prevent bending and breaking under extreme conditions.
- Upgraded Crankshaft: A forged crankshaft provides better durability and strength compared to stock options.
- Block Sleeving: Sleeving the engine block can increase the cylinder wall thickness, improving strength and reducing the risk of cracking.
- Balanced Rotating Assembly: Ensuring that the rotating assembly is balanced minimizes vibrations and enhances engine longevity.
Upgraded Bearings for Performance
Upgrading the bearings in a 4G63 engine is critical when aiming for high horsepower. Stock bearings may not withstand the increased loads and heat generated at higher power levels. Consider the following options:
- High-Performance Main Bearings: These bearings are designed to handle higher loads and provide better oil retention.
- Rod Bearings: Upgrading to performance rod bearings ensures improved durability and reduced friction.
- Clearance Adjustments: Adjusting bearing clearances can optimize oil flow and improve lubrication under high-stress conditions.
Choosing the Right Components
Selecting the right components for your 4G63 build is essential for achieving your horsepower goals. Here are some key components to consider:
- Turbocharger: A larger turbocharger can significantly increase airflow, allowing for more power.
- Fuel System: Upgrading the fuel injectors and fuel pump is necessary to support higher horsepower levels.
- ECU Tuning: Proper tuning of the engine management system is critical for maximizing performance and reliability.
Building the Engine
Once you have gathered all the necessary components, the actual building process begins. Follow these steps for a successful build:
- Disassembly: Carefully disassemble the engine, labeling parts for easy reassembly.
- Inspection: Inspect all components for wear and damage, replacing any parts that do not meet specifications.
- Assembly: Assemble the engine, ensuring that all torque specifications are followed and that proper lubrication is applied.
- Dyno Tuning: After the engine is built, dyno tuning is essential to ensure optimal performance and reliability.
Conclusion
Building a 4G63 turbo motor for 700+ horsepower is an ambitious but achievable goal. By focusing on internal strengthening techniques and upgrading bearings, you can create a reliable and powerful engine. With the right components and careful assembly, your 4G63 can deliver impressive performance on the track or street.