A Comprehensive Guide for
Choosing the Ideal Clutch
JPP
24 January 2024
Clutches Blog Page 1
Japanese Performance Clutches: A Comprehensive Guide
for Choosing the Ideal Clutch by Jap Performance Parts
Introduction:
Embarking on the journey of upgrading your Japanese performance car’s clutch is a significant step toward enhancing its
overall performance. At Jap Performance Parts, we understand that navigating the world of clutches can be daunting,
especially for those new to the intricacies of tuning upgrades. In this comprehensive guide, we will delve into the detailed
aspects of clutches, providing extensive information to empower you in making an informed decision that aligns perfectly
with your driving style and performance aspirations.
Key considerations when choosing a clutch:
- Understanding the Basics of Clutches
1.1 Clutch Functionality:
Understanding how the clutch system functions is essential for making an informed decision. Delve into the following
aspects:
1.1.1 Engagement and Disengagement:
- Comprehend how the clutch engages and disengages the engine from the transmission. This fundamental
functionality influences the start, stop, and shifting processes of your vehicle.
1.1.2 Friction and Clutch Disc: - Explore the role of friction between the clutch disc and the flywheel during engagement. The clutch disc is a
crucial component that transfers power from the engine to the transmission, enabling smooth gear changes.
1.1.3 Pressure Plate Operation: - Learn about the pressure plate’s function in applying and releasing pressure on the clutch disc. This mechanism
influences the speed and efficiency of clutch engagement.
Understanding the intricacies of clutch functionality provides a solid foundation for evaluating different types and models,
ensuring that the chosen clutch aligns seamlessly with your driving needs.
1.2 Types of Clutches:
Explore the diverse types of clutches available in the market, each catering to specific driving scenarios:
1.2.1 Organic Clutches: - Ideal for daily driving, organic clutches offer smooth engagement and are well-suited for street applications.
1.2.2 Ceramic Clutches: - Geared towards better performance, ceramic clutches handle increased stress and heat, making them suitable for
a mix of street and track driving.
1.2.3 Paddle Clutches: - Tailored for track-focused applications, paddle clutches allow for rapid gear changes, essential for highperformance driving.
1.2.4 Carbon Clutches: - Representing the pinnacle of performance-oriented materials, carbon clutches deliver extreme heat resistance,
lightweight construction, and race-ready performance. They are ideal for aggressive driving styles and track
applications where heat buildup is a concern.
Understanding the distinctions between these types helps in selecting a clutch that aligns with your driving style and
intended use of the vehicle.
1.3 OEM vs. Aftermarket:
Distinguish between original equipment manufacturer (OEM) clutches and aftermarket clutch options:
1.3.1 OEM Clutches:
Clutches Blog Page 2 - These are the clutches that come standard with the vehicle. They are designed for average driving conditions and
may lack the performance characteristics of aftermarket options.
1.3.2 Aftermarket Clutches: - Tailored to specific performance needs, aftermarket clutches offer enhancements in torque capacity, materials,
and overall durability. They are ideal for enthusiasts seeking improved performance.
- Assessing Your Needs
2.1 Primary Use and Driving Styles:
Understanding the primary use of your vehicle is fundamental to selecting the right clutch. If your car serves as a daily
driver, striking a balance between performance and comfort is essential. For this purpose, we recommend the Heavy Duty
or Extra Heavy Duty Single Organic clutch, known for its reliability and smooth engagement. Tailoring your clutch to
your driving style ensures optimal performance and longevity.
2.2 Horsepower Level and Torque Requirements:
The power your vehicle generates significantly influences the type of clutch required. Clutches are designed to handle
varying levels of torque and specific power ranges, and as such, our 230mm Twin Plate Organic clutch is tailored for
vehicles with a horsepower rating above 400 HP, ensuring optimal performance and durability.
2.3 Vehicle Weight:
Recognising the impact of your car’s weight on clutch selection is crucial for optimal performance. Consider the following
elements:
- Torque Capacity Requirements: Heavier vehicles typically exert more load on the clutch system. It’s essential to
choose a clutch with sufficient torque capacity to handle the additional weight. This ensures that the clutch can
effectively transfer power without slipping or premature wear. - Driving Dynamics: The weight of your vehicle influences its overall dynamics, affecting aspects such as
acceleration, braking, and cornering. A well-matched clutch accounts for the vehicle’s weight, contributing to a
balanced and responsive driving experience. - Performance Upgrades: If you’re planning significant performance upgrades that may increase your vehicle’s
weight, factor this into your clutch selection. Upgraded engines or modifications that add weight to the car can
alter the demands on the clutch system.
Choosing a clutch based on your vehicle’s weight ensures that it operates optimally within the specified parameters,
contributing to longevity and reliable performance. Whether you drive a lightweight sports car or a heavier performance
vehicle, aligning the clutch with your specific weight considerations enhances overall driving satisfaction.
2.4 Future Performance Goals and Turbo Upgrades:
Consider your performance goals and potential future modifications, such as turbo upgrades and engine enhancements.
Future-proof your clutch choice by aligning it with your projected power increases. Our clutches come in different stages
Stage One, Stage Two, or Stage Three, each designed to handle varying torque levels associated with performance
enhancements.
2.5 Clutches for Street and Track Use:
For enthusiasts who desire both street and track performance, versatility is key. Our lineup includes clutches suitable for
various driving conditions. The Single Plate Ceramic clutch is an excellent choice for those engaged in regular track use
below 400 HP, offering a perfect blend of performance and reliability.
2.6 Clutch Options for Rally Cars:
Rally enthusiasts have specific needs dictated by the challenging conditions of rally racing. The ideal rally clutch balances
durability and engagement. Our experts can guide you in choosing the perfect clutch for your car tuning needs, ensuring
precision and performance.
3 Clutch Materials
3.1 Organic Clutches:
Organic clutches are a popular choice for daily driving enthusiasts seeking smooth engagement and reliable performance.
Key features include:
Clutches Blog Page 3 - Smooth Engagement: Designed for seamless transitions between gears, organic clutches provide a comfortable
and user-friendly driving experience in various conditions. - Street Application: Ideal for city driving and daily commuting, these clutches are well-suited for vehicles that
primarily operate on paved roads. - Durability: While not as performance-oriented as some alternatives, organic clutches offer reasonable durability
for typical driving conditions.
3.2 Ceramic Clutches:
Ceramic clutches are engineered for enthusiasts seeking improved performance without compromising street-ability.
Consider the following aspects: - Enhanced Performance: Ceramic clutches handle increased stress and heat, making them suitable for spirited
driving and occasional track use. - Harsher Engagement: Compared to organic clutches, ceramic options may provide a firmer pedal feel and a
more immediate engagement, catering to drivers seeking a more dynamic driving experience. - Street and Track Balance: These clutches strike a balance between street and track applications, making them
versatile for those who enjoy both daily driving and occasional high-performance scenarios.
3.3 Paddle Clutches:
Paddle clutches are specialised components designed for demanding track-focused applications with rapid gear changes.
Explore their distinctive characteristics: - Track-Focused Precision: Paddle clutches are engineered to handle the intense demands of track driving,
particularly during high-speed gear changes. - Quick Gear Shifts: Designed for performance enthusiasts who prioritise lightning-fast shifts, paddle clutches
contribute to a more responsive and agile driving experience. - Performance Trade-Off: While exceptional on the track, paddle clutches may offer a harsher engagement for
street driving. Consider your driving habits and preferences when opting for this high-performance clutch.
3.4 Carbon Clutches:
Carbon clutches represent the pinnacle of performance-oriented materials. Consider the following features: - Extreme Heat Resistance: Carbon clutches excel in high-temperature environments, making them ideal for
aggressive driving styles and track applications where heat buildup is a concern. - Lightweight Construction: Carbon clutches are often lighter than their counterparts, contributing to reduced
rotational mass and improved engine response. - Race-Ready Performance: Designed for serious enthusiasts and racers, carbon clutches deliver unparalleled
performance but may sacrifice some street-ability due to their aggressive engagement.
Understanding the unique characteristics of carbon clutches allows enthusiasts to tailor their clutch selection to the
specific demands of high-performance driving, offering an optimal balance between heat resistance, weight savings, and
responsiveness.
4 Clutch Ratings & Stages:
4.1 Clamp Load and Torque Ratings:
Clamp Load: This term refers to the force applied to the clutch disc for optimal engagement, influencing the overall feel
and performance of the clutch. Understanding the clamp load is crucial for tailoring the clutch engagement to your driving
preferences.
Torque Ratings: The maximum twisting force a clutch can handle, directly related to the power output of your engine.
Torque ratings help you match the clutch to your vehicle’s power level, ensuring optimal performance and longevity.
4.2 Clutch Stages:
Understanding the different stages of clutches is crucial for making an informed decision based on your specific
performance goals and driving style. Let’s break down each stage:
4.2.1 Stage One: - Stage One clutches are designed for enthusiasts seeking a balance between enhanced performance and daily
drivability. These clutches offer improved torque capacity without compromising the smooth engagement
required for daily commuting. If you’re looking for a noticeable performance boost without sacrificing streetfriendly characteristics, a Stage One clutch is an excellent choice.
4.2.2 Stage Two:
Clutches Blog Page 4 - Stepping up to Stage Two signifies a commitment to a more spirited driving experience. These clutches are
engineered to handle increased torque levels, making them suitable for moderate performance upgrades. If you’re
planning on occasional track use or spirited driving sessions, a Stage Two clutch provides the necessary
durability and performance without sacrificing too much daily drivability.
4.2.3 Stage Three: - For the dedicated performance enthusiast pushing their Japanese performance car to the limit, a Stage Three
clutch is the ultimate choice. These clutches are engineered to handle significantly higher torque levels, making
them suitable for aggressive driving, track use, and high-performance modifications. Keep in mind that with the
increased performance comes a trade-off in daily drivability, as Stage Three clutches may exhibit a more
aggressive engagement.
4.3 Clutch Pedal:
The pedal feel of a clutch can significantly impact your driving experience. Consider the following aspects:
4.3.1 Soft Vs Firm Engagement: - Different drivers have varying preferences regarding the feel of the clutch pedal. Some prefer a softer
engagement for smoother shifts, while others may favour a firmer pedal for more precise control.
4.3.2 Daily Driving Considerations: - If your car serves as a daily driver, a clutch with a comfortable pedal feel can enhance the overall drivability. A
well-calibrated pedal ensures smooth transitions in stop-and-go traffic without causing fatigue.
4.3.3 Clutch Performance: - For performance-oriented driving, a firmer pedal feel might be desirable, providing a more direct connection
between the driver and the clutch. This is particularly relevant for track-focused or spirited driving scenarios.
4.4 Clutch Noise:
For those who value a quiet driving experience, minimising clutch noise is a priority. Our range includes options designed
for smooth and quiet operation without compromising performance. Select a clutch that aligns with your preference for
quiet operation, especially during everyday street driving.
- Clutch Mechanisms and Styles:
5.1 Clutch Mechanisms:
Understanding the different clutch mechanisms, such as push mechanism and pull mechanism types, is essential for
seamless operation. The right mechanism ensures compatibility with your transmission setup. Learn about the clutch-fork,
transmission, and cross-shaft components, which play crucial roles in the functionality of your clutch system.
5.2 Clutch Styles:
Different clutch styles, including cir-clip and lock retaining ring styles, offer varying benefits. The choice of style depends
on factors like ease of installation and maintenance. Delve into the intricate details of cir-clip style and lock retaining ring
style clutches to make an informed decision based on your specific requirements.
5.3 Pull to Push & Push to Pull Conversion:
In certain scenarios, a conversion from pull to push or push to pull may be necessary. This conversion ensures seamless
operation and compatibility with your transmission setup. Explore the reasons behind pull to push and push to pull
conversions, gaining insights into how these modifications enhance clutch performance.
5.4 Sprung Hub Disc vs. Rigid Hub Disc:
Choosing between a sprung hub disc and a rigid hub disc directly impacts drivability. A sprung hub absorbs vibrations,
providing smoother engagement and reducing stress on the drivetrain. In contrast, a rigid hub disc offers a more direct
connection to the drivetrain, suitable for high-performance applications. Delve into the details of sprung hub disc vs. rigid
hub disc to make an informed decision based on your driving preferences and performance goals. - Advanced Components in Clutch Systems
There are many essential components and clutch parts included within a clutch kits or systems.
Clutches Blog Page 5
6.1 Fluid Flow Restrictor:
The fluid flow restrictor is a sophisticated component that meticulously controls the flow of hydraulic fluid within the
clutch system. By ensuring precise engagement, this crucial element plays a pivotal role in hydraulic systems,
significantly influencing the speed and accuracy of clutch engagement.
6.2 Slave Cylinder:
An indispensable component in hydraulic clutch systems, the slave cylinder performs the crucial task of converting
hydraulic pressure into mechanical force. Understanding the significance of the slave cylinder is vital for maintaining the
proper functionality of your clutch, especially in hydraulic setups where seamless operation is paramount.
6.3 Conversion Rod:
The conversion rod stands as a critical component that facilitates mechanical synergy in conversion setups. Its primary
role is to seamlessly connect different clutch mechanisms, ensuring compatibility when transitioning between pull and
push-type clutch setups. The conversion rod plays an instrumental role in maintaining the integrity and effectiveness of
your clutch system.
7 Understanding Flywheel Mass, types and considerations:
7.1 Flywheel Mass:
The mass of your flywheel plays a crucial role in drivability and engine response. Single mass flywheels offer quicker
revs, making them suitable for spirited driving. On the other hand, dual mass flywheels provide smoother engagement,
ideal for daily commuting. Choosing the right type depends on your driving preferences.
7.2 Flywheel Grinding:
Flywheel grinding is a critical process for ensuring the proper mating of the clutch and flywheel surfaces. This procedure
is essential for compliance with legislation and promotes longevity and optimal clutch performance. Understanding the
nuances of flywheel grinding contributes to the overall functionality of your clutch system.
7.3 Lightweight vs. Heavy Flywheels:
Choosing between a lightweight flywheel and a heavy flywheel is a critical decision that directly influences engine
response and drivability. Explore the characteristics of each to make an informed choice:
7.3.1 Lightweight Flywheels:
- Quick Engine Response: Lightweight flywheels reduce rotational mass, enhancing engine responsiveness. This
results in quicker revving and faster acceleration, contributing to a sportier driving experience. - Tuned for Performance: Popular among performance enthusiasts, lightweight flywheels are ideal for scenarios
where rapid throttle response is prioritised, such as track racing and spirited driving. - Potential Downsides: While offering performance benefits, lightweight flywheels may result in a less forgiving
driving experience, especially for beginners. The reduced rotational inertia can make it challenging to maintain a
smooth idle and execute smooth gear changes at low speeds.
7.3.2 Heavy Flywheels: - Smooth Engine Operation: Heavy flywheels provide smoother engine operation by increasing rotational mass.
This can result in more stable idling and a smoother engagement of the clutch, especially at lower speeds. - Balanced Driving Experience: Well-suited for daily driving and commuting, heavy flywheels offer a balanced
and forgiving driving experience. They are particularly advantageous in stop-and-go traffic situations. - Less Aggressive Acceleration: While heavy flywheels provide a smoother driving experience, they may not
deliver the same level of aggressive acceleration and rapid revving associated with lightweight counterparts.
7.4 Clutch Material:
The material composition of the flywheel contributes to its overall performance. Consider the following materials
commonly used in flywheel construction:
7.4.1 Aluminium: - Lightweight: Aluminium flywheels are known for their lightweight construction, further reducing rotational
mass and improving engine response. - Enhanced Cooling: Aluminium’s heat dissipation properties contribute to better cooling, making it suitable for
high-performance applications where heat management is crucial. - Performance-Oriented: Widely favoured in performance setups, aluminium flywheels complement aggressive
driving styles and track-oriented applications.
Clutches Blog Page 6
7.4.2 Steel: - Durability: Steel flywheels are known for their durability and robustness, making them suitable for heavy-duty
applications and vehicles with higher torque loads. - Smooth Engagement: The additional weight of steel flywheels provides smoother engagement and stable idling,
enhancing drivability for daily commuting. - Widely Applicable: Steel flywheels cater to a broad range of applications, from daily drivers to vehicles with
moderate performance enhancements.
Choosing the right flywheel involves assessing your driving preferences, intended use of the vehicle, and the performance
characteristics you prioritise. Whether opting for the agility of a lightweight flywheel or the stability of a heavier one,
understanding these considerations ensures an optimal match for your driving needs.
8 Clutch Brand Reputation and Reviews
8.1 Research Brands:
When exploring clutch options, delving into the reputation of different manufacturers is paramount. Look for wellestablished brands with a history of producing high-quality, reliable clutches. Pay attention to the materials they use, the
technology they incorporate, and their commitment to innovation.
8.2 Customer Reviews:
Real-world experiences shared by other enthusiasts can provide valuable insights into the performance and durability of
specific clutch models. Visit online forums, review websites, and social media groups to gather diverse opinions. Keep in
mind that individual preferences and driving styles vary, so consider reviews collectively to form a comprehensive
understanding. Positive reviews regarding engagement feel, longevity, and compatibility with different driving scenarios
are particularly informative.
9 Installation and Maintenance of Clutch
9.1 Professional Installation:
While some enthusiasts may opt for a DIY approach, professional installation ensures that your clutch system is set up
correctly. Consulting a skilled mechanic or a reputable garage specialising in performance upgrades can contribute to
optimal performance and longevity. Professionals can also address any unforeseen issues during installation, providing
peace of mind.
9.2 Clutch Maintenance Requirements:
Understanding the maintenance needs of your chosen clutch is crucial for its long-term performance. Different clutches
may have varying maintenance schedules, and it’s essential to adhere to manufacturer recommendations. Regular
inspections, fluid checks, and addressing issues promptly contribute to the overall health of your clutch system. Ensure
that you have a clear understanding of the maintenance requirements before making your final decision.
10 Cost of Clutch
10.1 Budget:
Setting a realistic budget is a key aspect of the decision-making process. Consider not only the cost of the clutch itself but
also factor in expenses related to the flywheel and installation. While it’s tempting to focus solely on cost, remember that a
higher upfront investment in a quality clutch can lead to better long-term performance and durability.
10.2 Value for Money:
Balance your budget with the expected performance and durability of the chosen clutch. Assess the features, materials,
and technology incorporated in the clutch, and evaluate how they align with your driving needs. Sometimes, spending a
bit more initially can result in a better overall value, reducing the likelihood of future replacements and associated costs.
11 Warranty and Customer Support
11.1 Warranty Coverage:
Clutches Blog Page 7
Checking the warranty offered by the manufacturer is a crucial step in protecting your investment. A solid warranty
reflects the manufacturer’s confidence in their product. Understand the duration of the warranty, what it covers, and any
specific conditions. This information can provide peace of mind, knowing that you have a safety net in case of unforeseen
issues.
11.2 Customer Support:
Considering the level of customer support provided by the manufacturer is equally important. A responsive and
knowledgeable support team can be invaluable, especially if you encounter challenges during installation or have postpurchase inquiries. Look for manufacturers with a reputation for excellent customer service, ensuring that you have
assistance when needed. Engage with customer support channels to gauge their responsiveness and willingness to assist
customers.
Clutch Recommendations:
Explore clutch specialist Xtreme Clutch’s tailored recommendations based on your driving needs: - Road Use below 400 HP: Heavy Duty or Extra Heavy Duty Single Organic
- Road Use above 400 HP: 230mm Twin Plate Organic
- Regular Track Use below 400 HP: Single Plate Ceramic
- Regular Track Use above 400 HP: Twin Plate 200 or 230mm Ceramic
- Dedicated Track Car (400+ HP): Twin 184mm, 200mm, or 230mm Ceramic or Triple 184mm Ceramic
Clutches for Popular Models:
Explore our extensive range catering to iconic Japanese performance cars: - Subaru Impreza Clutch
- Subaru BRZ Clutch
- Mitsubishi Evo Clutch
- Nissan Skyline Clutch
- Toyota GT86 Clutch
Conclusion:
Armed with this extensive guide, you’re now equipped to embark on a journey of precision and power. Whether you
require a Subaru Drift Car Clutch, Subaru Rally Car Clutch, Evo Race Clutch, and so on. We can provide tailored
solutions for specific driving disciplines, providing precision and performance in demanding scenarios: drifting, rally
racing, or competitive events, our clutches are designed to meet the unique demands of each application. Choosing the
best clutch from Jap Performance Parts will not only tune your Japanese performance car’s performance but also elevate
your driving experience to new heights. Don’t hesitate to consult professionals and fellow enthusiasts for tailored insights
specific to your vehicle and driving style. Passion meets performance, and it’s time to unleash the full potential of your
beloved ride. Master your drive with confidence!
