20 June 2012
Deciding which clutch to install in your power monster should be based on much more than just price and how elaborate the setup is. This is truly a case where more is not necessarily better. Sure, you can believe the self-certified engineers on the forums and interwebs that, and I use this term loosely, “advise” to get the setup that holds the most torque. Unfortunately, this advice will usually land your car back on jack stands and off the road. Clutch selection is an exercise in balance. You must find a setup that can reliably hold your car's power without breaking other parts like axles, drive shafts and the like.
The choice becomes even more complicated now that twin- and multi-disc setups are more readily available than in the past. Twin- and multi-disc setups hold tons of power without taking up more real estate in your already-cramped bell housing. This is accomplished by using multiple friction surfaces.
Looking at the exploded view of SPEC's Mini Twin setup you will notice there are two separate friction surfaces. This effectively doubles the friction area and, thus, drastically increases its power-handling capabilities without increasing the overall diameter of the setup. These multi-disc setups also have the added benefit of being lighter in weight, which translates to faster, more precise gear shifts.
SPEC offers small and large diameter multi-disc kits for a wide variety of vehicles via its Mini Twin and Super Twin lines. Some applications, like the Honda B and D series, only have a Mini Twin option due to their smaller and shallower bell housings. The SPEC kits can also be fine-tuned through the use of different-sized friction surfaces. For example, the discs available for the Mini Twin kits are 140 mm, 184 mm and 215mm while the Super Twins feature larger 215 mm, 228 mm, 240 mm and 254mm disc options.
Yes, we are throwing more options out there for an already complicated decision, but fear not because the good folks from SPEC Clutches & Flywheels are there to help every step of the way. Whether you're looking for a Mini Twin for your road racing Civic or a Super Twin for your 1,500-hp GT-R, SPEC's helpful staff will work with you to tailor a clutch setup to your specific needs. Start off by visiting www.specclutch.com to see what options are available for your ride, then let SPEC fine-tune your kit.