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The BMW E39 M5 is a legendary performance sedan, known for its powerful V8 engine and exceptional handling. For enthusiasts looking to push the limits of this iconic vehicle, achieving over 600 horsepower is a thrilling goal. This article explores the various forced induction options and supporting upgrades necessary to build a 600+ HP E39 M5.
Understanding Forced Induction
Forced induction refers to the process of increasing an engine’s power output by forcing more air into the combustion chamber. This can be achieved through supercharging or turbocharging. Both methods have their benefits and drawbacks, and choosing the right one for your E39 M5 is crucial for achieving your horsepower goals.
Supercharging vs. Turbocharging
When considering forced induction, it’s important to understand the differences between supercharging and turbocharging:
- Supercharging: Provides immediate power increase and throttle response, driven by the engine’s crankshaft.
- Turbocharging: Utilizes exhaust gases to spin a turbine, offering greater efficiency and power but with a potential lag in throttle response.
Supercharging Options for the E39 M5
Supercharging the E39 M5 can significantly enhance performance. Here are some popular supercharger kits available:
- ESS Tuning Supercharger Kit: Known for its reliability and impressive power gains, this kit can push the E39 M5 to over 600 HP.
- Vortech Supercharger System: Offers a significant boost in horsepower and torque, while maintaining factory-like drivability.
Turbocharging Options for the E39 M5
If you prefer the benefits of turbocharging, there are several options to consider:
- Active Autowerke Turbo Kit: A comprehensive kit designed for maximum performance, capable of exceeding 600 HP with the right supporting mods.
- Boost Logic Turbo Kit: Known for its high-quality components and impressive power output, this kit can transform your E39 M5 into a true powerhouse.
Supporting Upgrades for Forced Induction
To safely achieve and maintain 600+ HP, several supporting upgrades are necessary. These modifications ensure the engine can handle the increased power and maintain reliability.
Fuel System Upgrades
A robust fuel system is essential for high horsepower builds. Consider the following upgrades:
- High-Flow Fuel Injectors: Upgrading to larger injectors ensures adequate fuel delivery under higher boost.
- Upgraded Fuel Pump: A high-performance fuel pump will maintain proper fuel pressure and volume.
Cooling System Enhancements
Increased power leads to higher temperatures. Proper cooling is vital:
- Upgraded Intercooler: A larger intercooler helps reduce intake temperatures, improving performance and engine longevity.
- High-Performance Radiator: An aftermarket radiator can improve cooling efficiency, especially during high-performance driving.
Engine Internals
For those pushing the limits, upgrading engine internals may be necessary:
- Forged Pistons: Stronger pistons can handle higher boost levels and prevent failure.
- Upgraded Rods: Forged connecting rods provide the strength needed for high horsepower applications.
Conclusion
Building a 600+ HP E39 M5 is an exciting project that requires careful planning and execution. By choosing the right forced induction system and supporting upgrades, you can transform your M5 into a formidable performance machine. Whether you opt for a supercharger or turbocharger, ensure that your upgrades work harmoniously to achieve the desired power while maintaining reliability.