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The 4G63 engine is a legendary powerplant that has earned its reputation in the world of performance tuning. Known for its robustness and potential for high horsepower, building a 4G63 to achieve 600+ horsepower is an exciting challenge for any enthusiast. In this article, we will explore the top upgrades and tuning tips necessary to reach this ambitious goal.
Understanding the 4G63 Engine
The 4G63 is a 2.0L inline-four engine that was produced by Mitsubishi. It features a DOHC design and has been widely used in various models, including the Mitsubishi Eclipse and Lancer Evolution. Its strong internals and turbocharged nature make it an ideal candidate for high-performance builds.
Essential Upgrades for 600+ HP
1. Turbocharger Upgrade
To achieve 600+ horsepower, upgrading the turbocharger is crucial. A larger turbo will provide more airflow and boost, which is essential for increasing power. Consider options like:
- Garrett GT30 or GT35 series turbochargers
- FP Black or FP Red turbochargers
- Precision Turbo PT6266
2. Fuel System Enhancements
To support the increased power, you need to upgrade the fuel system. This includes:
- High-flow fuel injectors (1000cc or larger)
- Upgraded fuel pump (such as AEM or Walbro 450)
- Adjustable fuel pressure regulator
3. Engine Internals
Strengthening the engine internals is vital for reliability at high horsepower levels. Recommended upgrades include:
- Forged pistons (e.g., Wiseco or CP Pistons)
- Forged connecting rods (e.g., Eagle or Manley)
- Upgraded crankshaft (consider a 2.4L stroker kit)
4. Engine Management System
A reliable engine management system is crucial for tuning and performance. Options include:
- ECU tuning solutions like AEM, Link, or Haltech
- Wideband O2 sensor for precise air-fuel ratio monitoring
- Data logging capabilities for tuning adjustments
5. Exhaust System
An efficient exhaust system helps reduce back pressure and improve turbo spool time. Consider:
- 3-inch turbo-back exhaust system
- High-flow catalytic converter or test pipe
- Quality muffler for sound and performance
6. Cooling System
Maintaining optimal temperatures is essential for performance. Upgrades should include:
- Upgraded intercooler (front-mount options are popular)
- High-performance radiator
- Oil cooler for engine longevity
Tuning Tips for Maximum Performance
Tuning is an art that requires careful consideration and adjustments. Here are some tips to help you achieve optimal performance:
1. Start with a Baseline Tune
Before making any significant changes, get a baseline tune to understand your engine’s current performance. This will help you track improvements as you upgrade.
2. Monitor Air-Fuel Ratios
Use a wideband O2 sensor to keep an eye on your air-fuel ratios. Aim for a safe range to prevent engine damage while maximizing power.
3. Adjust Timing
Timing adjustments can greatly impact power output. Use your engine management system to fine-tune ignition timing for optimal performance.
4. Regularly Check for Knock
Knock can be detrimental to engine health. Use knock detection tools to monitor for any signs of knock, especially under load.
5. Dyno Tuning
Once you have your upgrades in place, consider professional dyno tuning. This will provide precise adjustments for maximum horsepower and efficiency.
Conclusion
Building a 4G63 engine for 600+ horsepower is an achievable goal with the right upgrades and tuning. By focusing on essential components like the turbocharger, fuel system, and engine internals, along with careful tuning, you can unleash the full potential of this iconic engine. Happy tuning!