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The BMW E30, particularly when equipped with an M50 engine swap, is a popular choice among track enthusiasts. One of the most critical upgrades for enhancing performance on the track is the braking system. Upgrading to big brakes and lightweight rotors can significantly improve stopping power and reduce unsprung weight, leading to better handling. In this article, we will explore the best brake upgrades for a track-focused E30 M50 swap.
Understanding Brake Upgrades
Before diving into specific upgrades, it’s essential to understand the different components of a braking system and how they affect performance. The key components include:
- Brake Calipers
- Brake Rotors
- Brake Pads
- Brake Lines
- Master Cylinder
Big Brake Kits
Big brake kits are designed to increase the surface area of the brake components, which leads to better heat dissipation and improved stopping power. Here are some of the top big brake kits for the E30 M50 swap:
- StopTech Big Brake Kit: Known for its excellent performance and quality, this kit features larger calipers and rotors, providing superior stopping power.
- Brembo GT Brake Kit: A high-performance option that offers a significant upgrade in braking performance, ideal for track use.
- Wilwood Big Brake Kit: Lightweight and highly effective, this kit is perfect for those looking for performance without added weight.
Lightweight Rotors
Upgrading to lightweight rotors can reduce unsprung weight, improving handling and acceleration. Here are some recommended lightweight rotors for the E30:
- DBA 5000 Series Rotors: These rotors are designed for high performance and are significantly lighter than stock options.
- AP Racing Rotors: Known for their durability and performance, these rotors are a great choice for track-focused builds.
- StopTech Slotted Rotors: These rotors provide excellent cooling and performance while being lighter than traditional options.
High-Performance Brake Pads
Choosing the right brake pads is crucial for achieving optimal performance on the track. Here are some high-performance brake pads that pair well with big brake kits:
- Hawk Performance HP Plus: These pads offer excellent bite and fade resistance, making them suitable for track use.
- Ferodo DS2500: Known for their consistent performance, these pads provide a great balance of grip and longevity.
- EBC Yellowstuff: Designed for track use, they offer high friction levels and are engineered to handle high temperatures.
Upgrading Brake Lines
Upgrading to stainless steel brake lines can improve pedal feel and responsiveness. They are less prone to expansion under pressure compared to rubber lines. Here are some options:
- Goodridge Stainless Steel Brake Lines: These lines are known for their durability and performance, providing a firmer pedal feel.
- StopTech Stainless Steel Brake Lines: Designed for high performance, these lines improve braking response and consistency.
- OEM BMW Stainless Steel Lines: A direct replacement that offers improved performance over stock rubber lines.
Master Cylinder Upgrades
Upgrading the master cylinder can enhance brake feel and performance, especially when paired with a big brake kit. Consider these options:
- Wilwood Master Cylinder: Known for its reliability and performance, this master cylinder is a popular choice among track enthusiasts.
- BMW M3 E30 Master Cylinder: A direct upgrade option that improves brake performance and pedal feel.
- AP Racing Master Cylinder: Offers excellent modulation and is designed for high-performance applications.
Conclusion
Upgrading the braking system on your E30 M50 swap is essential for achieving optimal performance on the track. By investing in big brake kits, lightweight rotors, high-performance brake pads, stainless steel lines, and a suitable master cylinder, you can significantly enhance your vehicle’s stopping power and handling. These upgrades not only improve safety but also contribute to a more enjoyable driving experience on the track.