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The 4G63 engine, known for its performance and tuning potential, has been a favorite among car enthusiasts, particularly in the Mitsubishi Eclipse. Achieving over 700 horsepower from this robust engine is an exciting challenge that requires careful planning and the right upgrades. This article explores the best forced induction options and supporting modifications to reach that impressive horsepower mark.
Understanding the 4G63 Engine
The 4G63 engine is a 2.0L inline-four engine that has been widely used in various Mitsubishi models, particularly the Eclipse. Its strong construction and turbocharged variant make it a prime candidate for high-performance builds. To achieve significant horsepower increases, it is essential to understand the engine’s capabilities and limitations.
Best Forced Induction Options
When it comes to forced induction, there are several options available for the 4G63 engine. Each option has its benefits and drawbacks, depending on the desired power output and driving characteristics.
Turbochargers
Turbocharging is the most common method for increasing horsepower in the 4G63. Here are some of the best turbo options:
- Garrett GT35R: Known for its ability to support over 700 horsepower, the GT35R is a popular choice among tuners.
- FP Black: This turbo is designed for high horsepower applications and provides excellent spool characteristics.
- Holset HX35: A budget-friendly option that can still deliver impressive power numbers.
Superchargers
While less common than turbocharging, supercharging can also be an effective way to increase horsepower. Here are some options:
- Vortech V3: A centrifugal supercharger that provides a linear power band and can support high horsepower builds.
- Magnuson TVS: Known for its efficiency and ability to produce significant power while maintaining drivability.
Supporting Upgrades for 700+ HP
To safely achieve and maintain 700+ horsepower, several supporting upgrades are necessary. These modifications help ensure the engine can handle the increased power and maintain reliability.
Fuel System Upgrades
Proper fuel delivery is crucial for high horsepower builds. Consider these upgrades:
- Fuel Injectors: Upgrade to high-flow injectors capable of delivering the necessary fuel for 700+ hp.
- Fuel Pump: A high-performance fuel pump is essential to maintain adequate fuel pressure.
- Fuel Pressure Regulator: Helps ensure consistent fuel pressure under high load conditions.
Engine Internals
To handle the increased power, upgrading engine internals is often necessary:
- Pistons: Forged pistons can withstand higher pressures and temperatures.
- Rods: Upgrading to forged connecting rods provides additional strength.
- Crankshaft: A forged crankshaft can handle the increased stress from high horsepower.
Cooling System Enhancements
High horsepower applications generate more heat, making an efficient cooling system vital:
- Upgraded Radiator: A larger, more efficient radiator helps keep engine temperatures in check.
- Intercooler: A high-performance intercooler reduces intake temperatures, improving performance.
- Oil Cooler: Helps maintain optimal oil temperatures during high-performance driving.
Exhaust System Upgrades
A free-flowing exhaust system is essential for maximizing horsepower:
- Downpipe: An upgraded downpipe reduces back pressure and improves turbo response.
- Cat-Back Exhaust: A performance exhaust system enhances exhaust flow and sound.
Tuning for Maximum Performance
After completing the necessary upgrades, proper tuning is essential for achieving and maintaining 700+ horsepower. A professional tuner can optimize fuel maps, ignition timing, and boost levels to ensure the engine runs efficiently and reliably.
Conclusion
Achieving 700+ horsepower with a 4G63 Eclipse is an ambitious goal that requires careful selection of forced induction options and supporting upgrades. By investing in the right components and ensuring proper tuning, enthusiasts can unleash the full potential of the 4G63 engine and enjoy the thrill of high-performance driving.