The Best Clutch Kits for High Horsepower Builds
When building a high horsepower engine, one of the most important considerations is the clutch. The clutch is responsible for transferring power from the engine to the transmission, and it needs to be able to handle the increased torque and horsepower that a high horsepower engine produces. If the clutch is not up to the task, it can slip, causing a loss of power and performance. In extreme cases, it can even fail completely, leaving you stranded on the side of the road.
So, what are the best clutch kits for high horsepower builds? There are a number of factors to consider when choosing a clutch kit, including the amount of horsepower that the engine produces, the type of driving that will be done, and the budget.
Here are some of the best clutch kits for high horsepower builds, based on different needs and budgets:
- ACT Heavy Duty Clutch Kit: The ACT Heavy Duty Clutch Kit is a great option for those who are looking for a reliable and durable clutch kit that can handle a decent amount of horsepower. It features a heavy duty pressure plate and a sprung hub disc, which helps to reduce noise and vibration. It’s a good all-around option for those who want an upgrade over stock without going overboard.
- South Bend Clutch Stage 3 Daily Clutch Kit: South Bend Clutch is a well-known name in the performance clutch world, and their Stage 3 Daily Clutch Kit is a popular choice for high horsepower street cars. It features a ceramic friction material that provides excellent holding power, and a sprung hub disc that helps to absorb vibrations. This kit is designed for daily driving, so it’s relatively quiet and smooth.
- McLeod Racing RST Twin Disc Clutch Kit: For those who need even more holding power, the McLeod Racing RST Twin Disc Clutch Kit is a great option. It features two discs, which doubles the friction surface area and allows it to hold a significant amount of horsepower. It’s also relatively lightweight, which can improve throttle response.
- Tilton Carbon/Carbon Clutch Kit: For the ultimate in holding power and performance, the Tilton Carbon/Carbon Clutch Kit is the way to go. It features carbon fiber friction material, which is incredibly strong and heat resistant. It’s also very lightweight, which can further improve throttle response. However, this kit is very expensive and is typically only used in racing applications.
In addition to these specific clutch kits, there are a few other factors to consider when choosing a clutch for a high horsepower build:
- Clutch Disc Material: The clutch disc is the part of the clutch that actually engages with the flywheel and transmits power. The material of the clutch disc will affect its holding power, durability, and drivability. Common clutch disc materials include organic, ceramic, and carbon fiber. Organic clutch discs are the most common type and are a good choice for daily driving. Ceramic clutch discs offer more holding power than organic discs, but they can be more grabby and less forgiving. Carbon fiber clutch discs offer the most holding power and are very lightweight, but they are also the most expensive.
- Pressure Plate: The pressure plate is the part of the clutch that presses the clutch disc against the flywheel. The pressure plate’s clamping force is a key factor in determining the clutch’s holding power. A higher clamping force will result in more holding power, but it will also make the clutch pedal stiffer.
- Flywheel: The flywheel is a heavy metal disc that is attached to the engine’s crankshaft. The flywheel helps to smooth out the engine’s power delivery and also provides a surface for the clutch disc to engage with. When upgrading the clutch, it’s often a good idea to also upgrade the flywheel. A lightweight flywheel can improve throttle response, but it can also make the engine more difficult to stall.
- Release Bearing: The release bearing, also known as a throw-out bearing, is a critical component in your car’s clutch system. It is the part that presses against the pressure plate fingers when the clutch pedal is depressed, allowing you to shift gears. Selecting a high-quality release bearing is important for smooth operation and longevity of your clutch system.
- Pilot Bearing/Bushing: The pilot bearing or bushing is a small, but important, component that supports the input shaft of the transmission. A worn or damaged pilot bearing can cause noise, vibration, and difficulty shifting. Replacing the pilot bearing is recommended when replacing the clutch.
Tips for Choosing the Right Clutch Kit
Choosing the right clutch kit for a high horsepower build can be a daunting task. Here are some tips to help you make the right decision:
- Determine your horsepower and torque goals: The first step is to determine how much horsepower and torque your engine will be producing. This will help you narrow down your options and choose a clutch kit that is capable of handling the power.
- Consider your driving style: How will you be using your car? Will it be a daily driver, a weekend warrior, or a dedicated race car? The type of driving you do will affect the type of clutch kit you need.
- Read reviews: Before you buy a clutch kit, read reviews from other users. This will help you get an idea of the clutch kit’s performance, durability, and drivability.
- Talk to a professional: If you’re not sure which clutch kit is right for you, talk to a professional mechanic or performance shop. They can help you assess your needs and recommend the best clutch kit for your application.
Installation
Clutch installation can be a complex process, and it’s important to have the right tools and knowledge before you start. If you’re not comfortable installing the clutch yourself, it’s best to take it to a professional mechanic. Improper installation can damage the clutch or the transmission.
Breaking in a New Clutch
After installing a new clutch, it’s important to break it in properly. This will help the clutch disc and flywheel to mate together properly and will extend the life of the clutch. The break-in procedure typically involves driving the car gently for a few hundred miles, avoiding any hard acceleration or high RPMs. Consult the clutch manufacturer’s instructions for specific break-in recommendations.
Conclusion
Choosing the right clutch kit for a high horsepower build is essential for ensuring optimal performance and reliability. By considering the factors discussed in this article, you can choose a clutch kit that is capable of handling the power and abuse of your high horsepower engine. Remember to factor in your power goals, driving style, and budget when making your decision. And, if you’re unsure which clutch kit is right for you, don’t hesitate to seek the advice of a professional. With the right clutch kit, you can enjoy the full potential of your high horsepower build for years to come.