frs stage 2 clutch

3 min read 30-11-2024

Upgrading Your FR-S/BRZ: A Deep Dive into Stage 2 Clutches

The Subaru BRZ and Scion FR-S (now Toyota GR86) twins are beloved for their nimble handling and engaging driving experience. But for many enthusiasts, the factory clutch's limitations become apparent as power modifications increase. This article is a comprehensive guide to Stage 2 clutches for your FR-S/BRZ, covering everything from why you might need one to choosing the right option for your build.

Why Upgrade Your FR-S/BRZ Clutch?

The stock clutch in the FR-S/BRZ is designed for everyday driving. It's perfectly adequate for a bone-stock car, but it quickly becomes a weak point when you start modifying your engine. Adding performance modifications like upgraded intakes, exhausts, and engine tuning significantly increases torque output. This extra torque puts immense stress on the factory clutch, leading to several issues:

Slippage: The most common problem. Increased torque causes the clutch to slip, resulting in a loss of power and a burning smell.
Premature Wear: Constant high-torque use will wear down the clutch disc far faster than normal. This leads to frequent replacements and unnecessary expenses.
Clutch Chatter: This annoying noise is a sign of wear and tear, often accompanied by a rough engagement.

Stage 2 Clutch: This is a significant upgrade from the stock clutch. It's designed to handle significantly more torque than the factory unit, typically 300-400 lb-ft or more, accommodating moderate to high-performance modifications.

Choosing the Right Stage 2 Clutch for Your FR-S/BRZ

Selecting the perfect Stage 2 clutch depends on your driving style and modifications:

Factors to Consider:

Torque Capacity: Match the clutch's rated torque capacity to your vehicle's expected output. Overestimating is better than underestimating; a clutch that's too weak will still slip.
Engagement Feel: Some clutches have a heavier, more aggressive engagement than others. Consider your preference and experience level. A smoother engagement is generally better for street driving.
Noise Levels: Some higher-performance clutches can be noisier than the stock unit. If noise is a major concern, look for clutches with a reputation for quiet operation.
Daily Drivability: While performance is key, consider how the clutch will feel in everyday driving. A clutch that's too stiff or grabby can be fatiguing in stop-and-go traffic.

Popular Stage 2 Clutch Options:

(Note: This is not an exhaustive list, and specific recommendations can change based on current product availability and reviews. Always research current options and read user reviews before purchasing.)

Exedy Stage 2: Often cited for a good balance of performance and drivability.
ACT (Advanced Clutch Technology): Known for high-performance clutches, some models may be less street-friendly.
Clutch Masters: Another strong contender offering a range of options for different power levels.

Installation: DIY or Professional?

Installing a Stage 2 clutch is a significant undertaking requiring mechanical skill and specialized tools. Unless you have substantial experience working on vehicles, it's highly recommended that you have a professional mechanic perform the installation. Improper installation can lead to damage to your transmission or other components.

Beyond the Clutch: Supporting Modifications

Upgrading your clutch is only part of the equation. To maximize the lifespan and performance of your new clutch, consider these supporting modifications:

Lightweight Flywheel: Reduces rotational inertia, resulting in quicker acceleration and improved throttle response. However, it can also increase engine vibrations.
Short Throw Shifter: Improves shifting precision and feel.

Maintaining Your Stage 2 Clutch

Even a high-performance clutch requires proper care. Avoid harsh launches and excessive slipping. Smooth shifting and proper driving techniques will significantly extend its life.

Conclusion: A Powerful Upgrade

Upgrading to a Stage 2 clutch is a worthwhile investment for any FR-S/BRZ owner pushing the limits of their car's performance. By carefully considering your needs and choosing the right clutch, you can enjoy significantly improved power delivery, reduced slippage, and a more satisfying driving experience. Remember to always prioritize professional installation to ensure the longevity and safety of your vehicle.