Thread: ferrari enzo
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Old 12-10-2004, 11:31 AM
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F1 Transmission and Gearbox

In the F140 project, the rear gearbox is coupled directly to the engine by an element that incorporates the engine oil tank, the bevel gear pair, and the self-locking differential. In line with the car's performance targets, the gearbox unit was developed only in a Formula 1 version. Gear changes are entrusted entirely to an electrohydraulic system which activates the gearbox and clutch. Gear change control is managed electronically and activated by paddles positioned behind the steering wheel, modifying engine torque and vehicle dynamics.

The project was designed for extremely sporty performance and adopts triple cone synchronisers on all six speeds. Lubrication is forced, with a large pump and lower oil level to minimise losses due to ventilation/shaking. The architecture with three bearings guarantees optimal gear train coupling even at high torque. The twin plate clutch with aluminium housing and a diameter of 215 mm also speeds up engine dynamics and synchronisation.

The number one goal of the Enzo project was to cut gear change times (down to 150 milliseconds) in the interests of extremely sporty use. The F1 gear levers are made of carbon, with an optimised shape and size, and they have been made symmetrical by transferring the direction indicator controls to the steering wheel spokes. The gear change pushbuttons are mounted on the steering wheel, as are the two different gear change modes, Sport and Race, as well as the reverse gear selector button.
Each of these modes comes with its own integrated software controlling damping and traction control systems (ASR.)

In RACE mode and with ASR disengaged, the Launch Control strategy borrowed from Formula 1 is also available, allowing the driver to start off at top speed in good grip conditions. The driver keeps the brake pedal down while he uses the accelerator pedal to choose the engine speed at which he wishes to set off. When he releases the brake pedal, the clutch closes rapidly while torque control is left to the driver.

The system fine-tuned by Ferrari for its Formula 1 transmission envisages a special multiple telltale at the centre of the main instrument panel which keeps the driver constantly informed about the state of the system and the speed engaged.
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