Endless N35S Brake Pads: Rally Ready?

When it comes to motorsport, particularly the gruelling discipline of rallying, the choice of braking components is absolutely paramount. Drivers need a setup that can withstand immense heat, provide consistent stopping power across varied surfaces and conditions, and offer the confidence to push the limits. You've asked specifically about the Endless N35S brake pads and their suitability for rally use. Let's delve into what makes these pads tick and whether they are indeed a viable option for the rally stage.

Understanding the Endless N35S Compound

The Endless N35S compound is a semi-metallic material specifically designed with performance in mind. Its core characteristics are its high friction coefficient, stated to be between 0.40 and 0.43, and its intended purpose as a Rally & Race material. This immediately suggests that it's engineered for applications where extreme braking performance is a necessity.

The provided information highlights several key attributes:

• High Braking Power: The N35S is positioned as having one of the highest braking powers available on the market.
• Disc-Friendly: Crucially, it's noted that these pads do not punish brake discs, which is vital for longevity and reducing unsprung weight in a racing scenario.
• Temperature Stability: A significant claim is its stability at temperatures above 650°C. This is an exceptionally high threshold, indicating a compound built to endure the intense heat generated during prolonged, hard braking, a common occurrence in rallying.
• Durability: The pads can withstand long stages without fatigue, a testament to their construction and material properties.
• Response and Bite: The N35S offers high response with significant initial bite, meaning the brakes engage quickly and powerfully when the pedal is applied.
• Lubrication and Stability at High Temps: At elevated temperatures, it maintains its effectiveness through good lubrication and stable performance.

Rally Application: Why These Traits Matter

Rallying is a unique form of motorsport that places extreme demands on all vehicle components, especially the braking system. Unlike circuit racing where tracks are generally smooth and predictable, rally stages can encompass tarmac, gravel, mud, snow, and ice, often within the same event. This means brakes must perform reliably under a vast array of conditions.

The high friction coefficient and initial bite of the N35S are beneficial for quick deceleration, essential for navigating tight hairpins and avoiding obstacles. The ability to remain stable and effective at extreme temperatures is perhaps the most critical factor for rally use. A brake pad that fades under sustained heat can lead to catastrophic failure, putting the driver and co-driver at risk. The claim of stability above 650°C suggests that the N35S is designed to operate at the upper limits of performance, where standard road pads would quickly disintegrate.

Furthermore, the statement that these pads are "the most used in WRC, R5 or N5 cars" is a powerful endorsement. These are the pinnacle categories of rally, where performance is everything and component reliability is non-negotiable. If the top-tier rally cars are relying on the N35S, it's a strong indicator of their suitability for the discipline.

Endless N35S vs. ME25: A Comparative Look

The provided information also offers a brief comparison between the N35S and the ME25 compound. This helps to further clarify the N35S's position in Endless's range and its intended application.

The key difference highlighted is:

• N35S: Slightly higher initial bite, straighter line between initial bite and brake power.
• ME25: Implied to have a slightly lower initial bite and potentially a more progressive, less aggressive initial application of braking force.

For rally driving, where immediate and decisive braking can be crucial for maintaining momentum and correcting trajectory, the N35S's sharper initial bite could be advantageous. The "straighter line between initial bite and brake power" suggests a more linear and predictable build-up of braking force once the initial bite is achieved, which can help a driver modulate the brakes effectively.

Models Supported by Endless N35S

The availability of the Endless N35S for specific models further illustrates its performance-oriented application. The list includes a range of potent vehicles, many of which have a history or potential for performance driving and motorsport:

The inclusion of models like the Lancia Delta Integrale HF Evoluzione, Ford Focus RS, and various high-performance Alfas and Peugeots strongly suggests that these pads are targeted at vehicles that are either used in motorsport or are capable of very spirited driving where enhanced braking is a priority. The fact that the N35S is available for the legendary Lancia Delta Integrale, a car synonymous with rally heritage, further bolsters its credentials.

Considerations for Rally Use

While the N35S appears to be an excellent choice for rally, it's important to consider the full braking system and the specific demands of the rally car and stage.

• Brake System Balance: The N35S is just one part of the braking system. The effectiveness of these pads will also depend on the quality of the brake discs, calipers, brake fluid, and the overall brake bias of the car.
• Operating Temperature: While the N35S is stable at high temperatures, it's crucial to ensure the rest of the system can also cope. Overheating brake fluid, for instance, can lead to brake fade regardless of the pad material.
• Surface Conditions: Rally driving involves a wide range of surface grip levels. While the N35S provides high bite, drivers need to be mindful of how this translates to low-grip surfaces. Some drivers may prefer a compound with a slightly more progressive initial feel on loose gravel or wet conditions to avoid locking up wheels. However, the claim of good lubrication at high temperatures might mitigate some of these concerns.
• Bedding-in Procedure: Like all high-performance brake pads, the N35S will require a proper bedding-in procedure to achieve its optimal performance and longevity. This typically involves a series of moderate to hard stops from increasing speeds, allowing the pads and discs to mate correctly.

Frequently Asked Questions

Q1: Are Endless N35S pads suitable for daily driving?

A1: While they are designed for performance, the N35S can be used for daily driving. However, they are a performance-focused compound. They may produce more dust and noise than standard road pads, and their optimal performance is achieved at higher temperatures, meaning they might not feel as sharp during gentle, low-speed braking in everyday traffic.

Q2: Will Endless N35S pads wear out my brake discs quickly?

A2: The information provided explicitly states that the N35S pads "do not punish the brake discs." This suggests they are formulated to offer high performance without excessive wear on the disc surface, which is a common issue with some aggressive race compounds.

Q3: How do the N35S compare to other rally brake pad brands?

A3: Without direct comparative data from other brands, it's difficult to make a definitive statement. However, the claim that they are "the most used in WRC, R5 or N5 cars" is a very strong indicator of their competitiveness against other top-tier rally brake pad manufacturers.

Q4: What is the recommended operating temperature range for Endless N35S pads?

A4: The key figure provided is their stability above 650°C. While this is an extreme limit, performance brake pads generally have a wider optimal operating window than standard pads. For detailed specifics on the ideal temperature range for maximum performance and longevity, consulting Endless's technical documentation or a specialist supplier would be advisable.

Conclusion

Based on the provided information, the Endless N35S brake pads are indeed highly suitable for rally use. Their high friction coefficient, exceptional temperature stability, and proven track record in top-tier rally categories like WRC, R5, and N5 cars make them a compelling choice for drivers seeking maximum braking performance and reliability under extreme conditions. The compound's ability to offer strong initial bite and consistent power without excessively damaging brake discs further solidifies their position as a premium option for the demanding world of rallying.