24/01/2012
Elevate Your AE86's Stopping Power: The AP Racing 15" Front Brake Kit
The Toyota AE86, affectionately known as the 'Hachi-Roku', is a legendary chassis celebrated for its superb handling and engaging driving experience. While its lightweight and balanced nature are undeniable strengths, for many enthusiasts, the original braking system can feel somewhat lacking, especially when pushing the car to its limits or modifying it for performance driving. This is where a significant upgrade like the AP Racing 15" front brake kit comes into play, offering a substantial improvement in both performance and feel, and allowing you to truly unlock the full potential of your classic Corolla.
This comprehensive kit is designed to be a direct or near-direct fit for the AE86 platform, minimising the complexities often associated with aftermarket brake conversions. It's a testament to meticulous engineering, aiming to provide superior stopping power, increased fade resistance, and a more confident pedal feel. Whether you're a track day regular, a spirited road driver, or simply someone who appreciates the finer details of automotive performance, investing in an upgraded braking system like this AP Racing kit is one of the most impactful modifications you can make.
Why Upgrade Your AE86 Brakes?
The original AE86 braking system, while adequate for its era and intended use, was not designed for the demands of modern performance driving. Factors such as:
- Increased Power: Many AE86s are fitted with more potent engines, requiring a braking system capable of handling the higher speeds and forces involved.
- Track Use: Repeated hard braking during track sessions generates significant heat. Stock brakes can quickly suffer from 'brake fade', where their effectiveness diminishes dramatically, posing a serious safety risk.
- Aggressive Driving: Even spirited road driving can push the limits of the original components, leading to a less predictable and confidence-inspiring pedal feel.
- Weight: While the AE86 is light, performance driving often involves heavier, wider wheels and tyres, which can increase rotational inertia and demand more from the brakes.
- Aesthetics: Larger, performance brake kits often look impressive behind aftermarket wheels, contributing to the overall visual appeal of a modified vehicle.
What Does the AP Racing 15" Front Brake Kit Typically Include?
While specific kit configurations can vary slightly, a high-quality AP Racing 15" front brake kit for the AE86 is generally a comprehensive package designed for optimal performance. Key components usually include:
| Component | Description |
|---|---|
| Brake Discs/Rotors | Typically larger diameter, often 2-piece floating discs. These offer improved thermal capacity and reduced unsprung weight. They might be drilled or slotted to aid cooling and gas expulsion. For a 15" wheel fitment, the disc diameter will be carefully chosen to clear the wheel whilst maximising braking surface. |
| Brake Calipers | AP Racing is renowned for its high-performance calipers. This kit will likely feature multi-piston (e.g., 4-piston or 6-piston) billet aluminium calipers. These offer increased clamping force, more even pad wear, and superior heat dissipation compared to standard single-piston calipers. |
| Brake Caliper Brackets/Housings | Precision-machined brackets are essential to correctly position the larger AP Racing calipers onto the AE86 hub assembly. These are often made from high-strength aluminium or steel. |
| Brake Pads | The kit will usually come supplied with a set of high-performance brake pads. These are typically formulated for track or fast-road use, offering excellent initial bite and fade resistance. |
| Braided Hoses | Stainless steel braided brake hoses replace the standard rubber hoses. These are much more resistant to expansion under pressure, leading to a firmer and more consistent pedal feel. |
| Fixings and Hardware | All necessary bolts, nuts, washers, and sometimes even specific hub adaptors required for installation. |
The Benefits of AP Racing Technology
AP Racing is a name synonymous with motorsport excellence. Their components are developed and proven in the most demanding racing environments, translating directly into tangible benefits for your AE86:
- Superior Stopping Power: The combination of larger discs, multi-piston calipers, and high-performance pads significantly increases the braking force the system can generate.
- Enhanced Fade Resistance: The larger surface area of the discs, coupled with better caliper cooling and construction, allows the brakes to dissipate heat more effectively, dramatically reducing the likelihood of brake fade during prolonged use.
- Improved Pedal Feel: Braided hoses and stiffer, more rigid calipers result in a firmer, more responsive pedal. You'll feel more connected to the braking system, allowing for finer modulation and greater confidence.
- Reduced Wear: More pistons in the caliper distribute pressure more evenly across the brake pad, leading to more consistent pad wear and potentially longer pad life compared to single-piston systems.
- Weight Savings: While the overall kit might be heavier than the original small brakes, the use of lighter materials like billet aluminium for calipers and 2-piece discs can help offset this, and importantly, reduce unsprung weight in the right places.
Fitment Considerations for 15" Wheels
The '15"' designation in the kit's name refers to the minimum wheel diameter that can accommodate the larger brake components. It's crucial to understand that this is not just about the wheel's nominal size, but also its internal clearance. Even with a 15" wheel, the caliper and disc assembly must physically fit within the wheel's spokes and barrel. Therefore, before purchasing:
- Verify Wheel Clearance: Always check the specific clearance requirements provided by the kit manufacturer against your chosen 15" wheels. Some wheels, even if 15 inches, may have designs that prevent larger calipers from fitting.
- Consider Offset: Wheel offset can also play a role in clearance.
- Consult Manufacturer: If in doubt, contact the supplier or manufacturer to confirm compatibility with your specific wheels.
Installation and Maintenance
While this kit is designed for a relatively straightforward installation on the AE86, it is still a critical safety system. It's highly recommended that installation is carried out by a qualified mechanic or an experienced individual familiar with brake systems. Proper bleeding of the brake system after installation is paramount to ensure optimal performance and safety. Regular maintenance, including checking pad and disc wear, ensuring proper fluid levels, and inspecting hoses for any damage, will keep your upgraded braking system performing at its peak.
The Loyalty Points System: Rewarding Your Passion
Investing in quality performance parts is a significant commitment, and we believe in rewarding our loyal customers. With our unique loyalty points system, every Euro you spend earns you points. For every Euro spent, you receive one point, and each point is valued at one cent (€0.01). This means that 500 points equate to €5 that you can redeem on your next purchase. This allows your investment in your AE86 to become even more cost-effective over time. Let your points accumulate towards future upgrades, or use them to offset the cost of your next order. It’s our way of saying thank you for choosing us to help you enhance your beloved vehicle.
Frequently Asked Questions (FAQs)
Q1: Will this kit fit my specific AE86 model (e.g., GT-S, Levin, Trueno)?
A: Generally, AE86 chassis components are similar. However, it's always best to confirm with the kit supplier based on your exact model year and body style to ensure perfect fitment.
Q2: Do I need to change my master cylinder?
A: In some cases, with a significant increase in caliper piston area, a larger bore master cylinder might be recommended to maintain proper brake pedal feel and efficiency. Check the kit's specific recommendations.
Q3: What kind of brake fluid should I use?
A: For performance applications, a high-temperature DOT 4 or DOT 5.1 brake fluid is recommended to maximise resistance to fade under heavy use.
Q4: Can I use my existing brake lines?
A: While sometimes possible with adapters, it's strongly recommended to use the supplied braided stainless steel lines for optimal performance and safety, as they resist expansion under pressure much better than rubber lines.
Q5: How much improvement can I expect?
A: You can expect a dramatic improvement in stopping distance, fade resistance, and pedal feel. The exact percentage improvement varies, but it will be substantial compared to the stock setup.
Conclusion
The AP Racing 15" front brake kit represents a significant leap forward in braking performance for the Toyota AE86. It’s an investment in safety, control, and the overall driving enjoyment of your classic machine. By upgrading to a system built with motorsport-derived technology, you ensure your AE86 can not only keep pace with its improved power and handling but also stop with the confidence and precision it deserves. Remember to take advantage of our loyalty points system to make this performance upgrade even more rewarding!
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