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The 4G63 engine has become a legendary powerhouse in the automotive world, especially among Mitsubishi Eclipse enthusiasts. Known for its robust design and tuning potential, a fully built 4G63 motor can unleash impressive power figures. In this article, we’ll explore the max power potential of a 4G63 Eclipse and what you can expect from a fully built motor.
Understanding the 4G63 Engine
The 4G63 is a 2.0-liter inline-four engine that has been widely used in various Mitsubishi models, notably the Eclipse. It features a DOHC design and is known for its turbocharged variants, which provide a solid foundation for tuning and performance upgrades.
Stock Power Output
In its stock form, the 4G63 engine produces around 190 to 200 horsepower, depending on the specific model and year. While this is respectable for a compact car, many enthusiasts seek to push these numbers much higher.
Building the 4G63 for Maximum Power
A fully built 4G63 engine involves several modifications and upgrades to achieve its maximum power potential. Here are some key components to consider:
- Forged Internals: Upgrading to forged pistons, rods, and crankshafts can significantly increase the engine’s durability and allow for higher boost levels.
- Upgraded Turbocharger: A larger turbocharger can provide more air and fuel, leading to greater power output.
- High-Performance Fuel System: An upgraded fuel pump and injectors are essential to supply the necessary fuel for higher horsepower levels.
- ECU Tuning: Proper tuning of the engine’s ECU is crucial to optimize performance and ensure reliability.
- Improved Cooling System: A better intercooler and radiator help manage the increased heat generated by higher power levels.
Expected Power Figures
With a fully built 4G63 engine, power figures can vary significantly based on the modifications made and the tuning process. Here’s what you can typically expect:
- Street Builds: Many enthusiasts report power outputs ranging from 400 to 500 horsepower on street setups.
- Track Builds: For those focused on track performance, builds can exceed 600 horsepower with the right combination of parts and tuning.
- Extreme Builds: In some cases, fully built 4G63 engines have achieved over 800 horsepower, but these require extensive modifications and are not street-friendly.
Factors Influencing Power Output
Several factors play a crucial role in determining the final power output of a fully built 4G63 engine:
- Quality of Parts: Using high-quality aftermarket parts can lead to better performance and reliability.
- Tuning Expertise: A skilled tuner can extract more power and ensure the engine runs smoothly and reliably.
- Boost Levels: Increasing boost can significantly enhance power, but it also requires careful tuning and quality parts to prevent engine failure.
- Fuel Quality: Higher octane fuel allows for more aggressive tuning and can contribute to greater power output.
Conclusion
The 4G63 engine, when fully built, has the potential to deliver exhilarating power and performance. With the right modifications and tuning, enthusiasts can expect impressive horsepower figures that make the Mitsubishi Eclipse a formidable contender on the road and the track. Whether you aim for a street-friendly setup or an all-out race machine, the possibilities with a fully built 4G63 are virtually limitless.