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The 4G63 engine is a legendary powerplant that has gained a cult following among automotive enthusiasts, especially those in the Mitsubishi and DSM (Diamond Star Motors) communities. Known for its robust design and tunability, the 4G63 can be modified to produce impressive horsepower figures without breaking the bank. In this article, we will explore how to build a reliable 350 horsepower on a budget using MAP and DSM parts.
Understanding the 4G63 Engine
The 4G63 is a 2.0-liter inline-four engine that was used in various Mitsubishi models, including the Eclipse, Talon, and Galant. This engine features a DOHC design and a turbocharger, making it a prime candidate for performance upgrades. Its strong internals and aftermarket support make it possible to achieve high horsepower numbers.
Setting Goals for Your Build
Before diving into modifications, it’s crucial to set clear goals for your build. Aim for a target of 350 horsepower while maintaining reliability and drivability. Here are some essential considerations:
- Budget constraints
- Intended use of the vehicle (daily driver, track, etc.)
- Desired modifications and upgrades
Essential Upgrades for 350 HP
To achieve 350 horsepower, several key upgrades are necessary. Below is a list of components to consider:
- Turbocharger: Upgrade to a larger turbo, such as the MAP 68HTA turbo, which offers improved flow and efficiency.
- Fuel System: Install larger fuel injectors (e.g., 650cc) and an upgraded fuel pump to support increased fuel demands.
- ECU Tuning: Utilize a standalone ECU or a tuning solution like the DSMlink to optimize engine performance.
- Exhaust System: A high-flow exhaust system will reduce back pressure and improve turbo spool.
- Intake System: A performance intake manifold and a high-flow air filter will enhance airflow to the engine.
- Intercooler: Upgrade to a larger front-mount intercooler to reduce intake temperatures and improve performance.
MAP and DSM Parts Overview
Using MAP and DSM parts can help you achieve your power goals without overspending. Here’s a closer look at some recommended parts:
- MAP Performance Turbo Kits: These kits come with everything needed for a turbo upgrade, including the turbo, manifold, and gaskets.
- MAP Fuel System Upgrades: MAP offers a variety of fuel pumps and injectors designed specifically for the 4G63.
- DSMlink Tuning Software: This software allows for precise tuning of your engine, ensuring optimal performance.
- MAP Intercoolers: High-quality intercoolers that provide excellent cooling efficiency.
Building the Engine
When building your engine for 350 horsepower, it’s essential to ensure that your engine internals can handle the increased power. Consider the following:
- Pistons: Upgrade to forged pistons for added strength and durability.
- Rods: Consider using forged connecting rods to withstand higher power levels.
- Head Work: Porting and polishing the cylinder head can improve airflow, contributing to better performance.
Tuning for Performance
After all modifications are complete, proper tuning is crucial for achieving your horsepower goals. Here are some tips:
- Use a wideband O2 sensor to monitor air-fuel ratios.
- Adjust ignition timing for optimal performance.
- Test and adjust boost levels to ensure reliability.
Maintaining Reliability
While aiming for high horsepower, maintaining reliability is equally important. Here are some strategies:
- Regularly check and change engine oil to ensure proper lubrication.
- Monitor coolant levels and temperatures to prevent overheating.
- Perform routine maintenance on the fuel system and ignition components.
Conclusion
Building a 4G63 engine to achieve 350 horsepower on a budget is entirely feasible with the right parts and knowledge. By utilizing MAP and DSM components, you can maximize performance while keeping costs manageable. Remember to set clear goals, choose the right upgrades, and maintain your engine for long-lasting reliability. Happy tuning!