By Archie Bosman
Photographs by Moore Good Ink
But to create an upgraded dual-disc clutch assembly, one that is capable of transmitting 700ft lbs of rear-wheel torque, Ram Clutches made fundamental changes following their initial tests using the original layout.
First, to support the input shaft they invented a 26-spline bushing integrated with a needle roller bearing and incorporated it at the center of their new aluminum flywheel. This acts as both a pilot bushing and an added support to prevent excessive motion or run-out in the input shaft.
In addition, Ram incorporates sprung hubs in both clutch discs with six springs in each. The extra springs reduce transmission noise and any harmonic concerns; they also provide the added cushioning for a smoother drive.
Higher Clamping Forces
Known as the Force 9.5, Ram’s new dual-disc system provides a clamping force of 1,800 to 1,900lbs without discernible increase in pedal pressure. Perhaps more importantly, the pedal feel is more linear and consistent than the stock arrangement.
Finally, weighing 37lbs, this flywheel-clutch assembly tips the scales 13lbs lighter than the original. Even more appealing, because attention was paid to the installed height of the original clutch this is a direct bolt-in. Complying with SFI standards, the price of Ram’s Force 9.5 starts at $1100. For higher torque capacities, it is also available with Ram’s more aggressive 900-series clutch discs at $1175.
For further information contact:
RAM Automotive Company
201 Business Park Blvd.
Columbia, SC 29203
Telephone (803) 788-6034
or visit: www.ramclutches.com