Not all clutches are created equal - and this is especially true with the various Kevlar options on the market. After much experimentation with different Kevlar products, we've found superior results with a 100% textile Kevlar composite facing. The only material of it's kind, it is:
- patented and manufactured exclusively in the US,
- designed to work both wet and dry, and
- outperforms other Kevlar facings in terms of disc wear, engagement, chatter and flywheel abrasiveness
This composite's unique blend of materials, process of manufacture and friction properties cannot be duplicated by others trying to mold Kevlar pulp into high energy clutch facings. In both our rebuild program and new clutch packages, HCF uses only this textile Kevlar composite in our disc facings.
For street applications seeking a smoother engagement, Kevlar composite discs are a great option. For racing conditions or vehicles producing torque in excess of Kevlar's capacity, we recommend our Ceramic disc option. We can also offer a high quality traditional organic disc with any of our kits, on request.
Note: minimum 500 miles of light driving are required for the Kevlar clutch to properly break in.
Click below to see a 6 year case study on a clients Ferrari 512TR using the same Kevlar composite facing that's used in our clutch kits and rebuild program
365 GT4 BB / BB 512 / BB 512i / BBLM
512TR / 512M / 456 / 550 / 575 / 612
F355 - Manual and F1 configurations
360 - Manual and F1 configurations
430 - Manual and F1 configurations
Ferrari Part Numbers: 194775, 135076, 136006, 109460, 110558, 121562, 109382, 157754, 201680, 222090
Gallardo - Manual and E-Gear configurations
Lamborghini Part Numbers: 07L105269G, 07L105269F
R8 - Manual and ASM configurations
Audi Part Numbers: 079141011E, 079141011C, 07L141011L
Ford GT (05-06)
Ford Part Number: 4G7Z-7B546-BB
Shown here in Lamborghini / R8 fitment, we offer single
and triple disc packages, as well, and can deliver them with segmented or full face discs.
Patented Kevlar composite facings above.
Aluminum pressure plate lid
Patented Kevlar composite facings
Custom flywheels available for all fitments, made in the USA from steel or aluminum. Option for replaceable friction insert available.
Example installed, with clutch assembly and ring gear
Rebuilt OEM disc with segmented facings. As installed during engine-out service in 2011.
A little over a year later the gearbox was damaged and developed an oil leak, necessitating a tear down. Clutch disc showed virtually no wear and, as this particular Kevlar fiber composite material is designed to work wet or dry, it did not need to be replaced.
In 2017 the gearbox main shaft broke, providing the opportunity to inspect the clutch components. Minimal 0.5mm of wear noted from new.