By Ben Mozart
Photos by Moore Good Ink
FOR ROAD-GOING CARS THE DUAL CLUTCH IS THE APPARATUS OF THE FUTURE. Equipped with two input shafts (one inside the other), torque interruptions are imperceptible during gear shifting. In fact its gear-shifting technology is so rapid the “head-bob” is eliminated.
With half the gears on one main shaft and half on the other and a cluster between them, the dual clutch brings the two transmissions together. Odd number gears reside on one shaft, even number gears on the other. When shifting from one gear to the next the second gear is already pre-selected and the dual clutch operates in 200 milliseconds.
For racing cars, TREMEC introduced their new Magnum XL to the heart of competition at the Detroit Grand Prix, June 1-2, 2013. Originally designed for the S197 Mustang, the Magnum XL features an extra long extension that not only delivers precise shifting but also extends the shift lever back to a more convenient location. The transmission is designed to eliminate the OEM two-piece driveshaft. The use of a one-piece aluminum replacement reduces the rotating mass by more than 20lbs. Moreover an SFI-approved burst-proof bell housing is supplied with the kit.