Clutch_Masters_BuildingHere at PAS Magazine we always have the keys to the VIP. Not just in the clubs (that is a given), but I’m talking about manufacturers that open the doors to us and offer a glimpse about how products are made behind the walls that the public never sees. We are privy to all kinds of proprietary technology that we can’t event talk about, but many areas of the manufacturing process that you’ll definitely want to hear about. What special processes will make your parts stronger or perform better than the next one is something you need to read. Buying the right product isn’t always about the biggest marketing campaign or the coolest anodizing or even the hottest racer sponsored. We got an invite from established clutch maker, Clutch Masters to tour their Rialto, CA facility to find out how they design and manufacture heavy duty street and racing clutches.

The mission statement at Clutch Masters has always been that increasing clamping pressure does not necessarily mean increased pedal pressure and all of the associated problems with a heavy duty clutch. Problems like premature clutch slave and component wear or the dreaded crank-walk in some applications. Today, thanks to Clutch Masters, increased holding pressure does not necessarily mean increased pedal pressure and the problems that can accompany it. By re-engineering the leverage or fulcrum point on the pressure plate through their Hi-Leverage technique, Clutch Masters has increased clamping power, often without changing pedal pressure. Designing heavy duty and high performance clutches with a very high clamp load and high coefficient of frictionClutch_Masters1 is a fairly simple engineering task. However, to do so without increasing pedal pressure has not been so easy. Debunking the myth that an increase in pedal pressure must accompany a high performance clutch with increased clamping force has been difficult.

While other clutch manufacturers may make similar claims, Clutch Masters has been perfecting their craft for over 30 years. Their product has been proven over and over on the race tracks and in spirited street driving. We got to take a first-hand look at how they backed up their marketing claims in the shop where their clutches are made. Clutch Masters clutches are made in the USA, which sits well with today’s tuners. They do outsource some stamping for spring hubs, pressure plates and clutch covers to ISO 9001 certified manufacturers. The Rialto facility is primarily assembly of high-grade parts from around the country. With skilled staff and plenty of quality control, you can be assured that your clutch will meet or exceed expectations. Starting with the components, they are treated for strength before assembly. The diaphragm springs are re-arched and heat treated to increase tension and gain between 10-40% more clamping force for superior engagement.

Clutch_Masters2 Clutch_Masters3 Clutch_Masters4

Heat treating can make the diaphragm more brittle but Clutch Masters has found the sweet spot between strength and shock resistance. Another tip for Clutch_Masters_Employeereducing pedal pressure is by producing a Hi-Leverage ductile iron casting with a redesigned pivot point to gain the perfect balance between a high clamp load and a stock pedal feel. With this design and the combination of top of the line components, it allows them to produce a pressure plate that delivers maximum clamping force with a minimal increase in pedal pressure. Disc components and friction materials are equally important; Clutch Masters makes every effort to source premium components and offer a wide variety of friction discs for all levels of performance. Clutch Masters also has a large offering of 2-Piece Billet Aluminum Flywheels for most applications. Ultra High Performance Custom Twin Disc assemblies are also available for many popular applications. Clutch Masters racing clutches and flywheels are SFI Certified.

Clutch Masters has done a solid job of seeing what is available out there in the market and improving upon it. Still got questions? Feel free to hit up www.clutchmasters.com or call them up at 909-877-6800 for any technical questions.

More Articles

Papa Knows Best: Papadakis Racing Aims for the Record Books

Written by Jacob Leveton (with notes from Jen Horsey) Over the years, Papadakis Racing has become synonymous with motorsport innovation. After transitioning to drifting from a successful run in sport compact drag racing, the team has scored two championships, eight…
Read More

2010 Acura ZDX: Performance Crosses Over

I was a fan of sport utility vehicles (SUVs) long before they became a staple of every suburban driveway. I had owned frontrunners like the Dodge Ramcharger and the Ford Bronco a decade before any soccer mom would have gone…
Read More

Grip Royal: Find Your Grip

Written by Micky Slinger / Photography by Jon Hanna, Andrew Chang, Casey Murphy, Jacob Leveton, Jason Hellman, Brian Fortak You have a unique ride, but can’t really find a steering wheel to match. We get it. But, you don’t have…
Read More

Winter Driving Preparation

Winter Car-Prep 101 Winter is just around the corner, so hopefully your preparations for cold, slippery, low-visibility conditions have begun. Some locations have yet to see snowfall, but it’s best to get your car in order before you get caught…
Read More

KW Suspension Variant 2 Coilovers

Aside from tires one of the most critical components to your ride would be the parts you can’t even see – suspension components. Your car’s suspension is more than just springs but rather a complex network of arms, bushings, dampers…
Read More