Hi to all the GT40 fans,
it borned in 1999 in order to be the natural replacement of the ZF on the Pagani Zonda. At this time any gearbox was capable to handle the monstreous torque of the V12 AMG 7,1 L. ( Pagani plants are at 25 kms from CIMA plants ). Immediatly Koenigsegg came to us in order to solve the same problem.
From this stage T756H ( transaxle 750 Nm 6 speeds H pattern ) has been constantly up graded in order to follow the tyres evolution and the engines evolution as well, becoming T906H and then S ( sequential, but synchronised as the Apollo Gumpert isusing it actually ).
The design toke care of dry and wet sumps by having the possibility to turn the transmission up side down. Let say with the differential axle above or below the engine axle, just by changing the crown wheel position and some external accessories.
Actually 6 final drives are avalaible and 2 different 6th gear ratios as well, in order to meet any customer requirements in terms of engine revolutions and tyre size.
The Venturi GT3 is using the light and sportly version of it, called TSR, beeing lighter of 14 Kgs and using spur gears with dog clutches.
The shifting automation is on his way in 4 different levels.
Basic level is more a servo actuator for shifting the sequential unit and keeping the clutch actuated from the driver.
The second level has the function of shifting on demand without the drive away function. The drive away is controlled by a third paddle on the steering whell.
The third level is semi automatic with wet and sport functions.
The fourth level is fully automated.
Everything is electromechanic, simple and light.
The synchronisation is made by a tripple cone Hoerbiger system for first and second, double cone for 3rd,4th,5th and 6th and single cone for the reverse.
The differential is a safe "torque sensitive type" capable now of 9.000 Nm of output torque.
By beeing an hypostatic shaft lay out, this enables the gearbox to transfer 900 Nm to the ground with a very compact 85 mm of center distance.
What else to say about it????
Just ask and I will reply.
Regards to all the friends.
Wanni