Single Disc Clutches

These are highly versatile. Typically when you think of high-horsepower cars making 5+ WHP, you would think that they need a 2 or 3-disc clutch kit. And that is true depending on the clutch manufacturer, however, there are single-disc clutch kits that are capable of supporting 4, 5, and 6 horsepower levels for your Subaru WRX or STI. This is accomplished with a pressure plate with a higher clamping load that is combined with the main ingredient which is the clutch disc design. These clutch discs will have thick friction pads that can disengage the flywheel during high-performance driving conditions. Note that the single-disc clutch kits that support higher horsepower levels might not be the most comfortable clutches to drive in terms of engagement. Aside from these high-horsepower single-disc examples, remember that we have OEM-like clutch kits that support OEM power levels, and we carry several upon several examples that are perfect for those of you making between 3-45 WHP that are very streetable with OEM-like driving manners. 

 

WHAT OTHER COMPONENTS SHOULD I CONSIDER WHEN REPLACING MY SINGLE-DISC CLUTCH?

 

• FLYWHEELS: Without a good flywheel your clutch cannot work properly. In Layman's terms, your flywheel is like a brake disc and your clutch disc is like a brake pad. What would cause your brakes not to work? There are a few instances so let's discuss scenarios that would relate to a function of a flywheel. Brake fade happens when your pads get so hot that it glazes over the disc preventing friction. And the other reason is that your brake pad is simply gone and can't stop the car. Same function as a flywheel. Your flywheel can either be glazed with clutch disc debris preventing a proper clutch engagement, or your flywheel could simply be worn. Depending on how worn your flywheel is, you could get it resurfaced at a good machine shop, or you can just get a replacement. We have many options. We have OEM-like flywheels that have the same weight and rotational mass. These will be the most comfortable to drive in as the heavy flywheel absorbs a lot of the clutch shock, and it is easier to slip the disc when driving for everyday purposes. Lightweight flywheels add more horsepower and torque. This is achieved because the lighter the flywheel, the less rotational mass at the crankshaft. This will allow the engine to rev faster which will free more power. Depending on what lightweight flywheel you choose, sometimes a tune is required because otherwise, your ECU won't recognize the extra power output, and you could be hitting more boost and need the right timing and fuel tables to compensate, or you need to readjust the boost. Also, note that lightweight flywheels will create more clutch chatter noises which is normal when compared to a flywheel with OEM-like weight. 

• CLUTCH REPLACEMENT PARTS: If you're guilty of trying to do an AWD burnout but you smoked your clutch instead, you're in the right spot. In this section, you're going to find all of the right clutch components that you can purchase separately if the rest of your clutch components are in good working order. You can find clutch discs, flywheel bolts, clutch forks, and that retainer ring on the Exedy clutch that likes to pop off every time your input shaft makes contact. You can also find major components such as a pressure plate and throw-out bearing. This is also a great way to help you save money so that you don't have to purchase an entirely new clutch kit. 

 

• CLUTCH LINES: The examples we carry all feature braided stainless construction. Why is this important? Because the OEM clutch line can expand over time, potentially creating little air pockets that can cause premature wear, while affecting your overall clutch efficiency. And if they break then you will have no function of your clutch whatsoever. Braided stainless clutch lines do not expand under pressure, giving you a direct response from the pedal to the slave cylinder. This promotes a better clutch response, with better clutch wear and efficiency, and the installation is fairly simple for the available makes and models. 

 

Fresh new drivetrain components that work together with your single-disc clutch setup will promote the most efficient transmission function while making sure all of the power makes it to your wheels, rather than getting lost through a slipping disc or flywheel. Make sure you choose the right single-disc clutch setup to suit your current or future power levels and driving style. With so many options brought to you by the most familiar and established brands, our available options will greatly surpass the power limits associated with your OEM clutch.