600nm = 442.5372727 ft.lbs Torque Capacity - Since this is an Aussie write up - for a 6cyl. engine app. - the torque figures may differ from the ZF 6hp26 unit behind the 330cu.in. Lincoln Navigator engine. From other readings - there is a control module on / in the trans. - readings are sent to it from PCM via link. Setting up a paddle shift arrangement should be a plug 'n play affair. The 245T is a DOHC Turbo 6 while the Boss 260 is a honkin' 5.4 version of the 'Navi' DOHC v8 powerplant. Fullboost latest news - (http://www.fullboost.com.au/news.php?newsId=1183) 2007/05/09 07:49:36 ---------------------------------- World class six-speed automatic "Not only does it reward a sporty driving style with livelier performance and sharper responses, but it also delivers significant benefits in terms of reduced fuel consumption and greater refinement, with smoother shift quality a notable feature during everyday use." ZF 6HP26 six-speed automatic The six-speed automatic is a compact and lightweight, high efficiency, high torque capacity transmission with a low first gear, higher top gear and smaller, more graduated steps between each gear. With a larger spread of ratios, the six-speed transmission offers real-world benefits in the traditionally divergent areas of performance and fuel consumption. A low first gear greatly improves launch feel, while the larger and tighter spread of ratios delivers livelier performance, especially at wide open throttle, along with the added benefits of smoother shift quality and reduced fuel consumption. ZF 6HP26 six-speed automatic 1st gear ratio 4.17 2nd gear ratio 2.34 3rd gear ratio 1.52 4th gear ratio 1.14 5th gear ratio 0.87 6th gear ratio 0.69 Reverse 3.4 Final Drive Barra 190: 2.73 Barra 230: 2.53 Barra 245T / Boss 260: 2.73 Gear shifts between the top few gears are often imperceptible, while the smaller steps between 3rd, 4th, 5th and 6th also ensure less busyness within the transmission as it determines the right gear. The end result of the transmission being in the right gear at the right time is both an improvement in vehicle performance and a reduction in fuel consumption. There are two versions of the six-speed automatic transmission a standard version with a torque capacity of 450 Newton metres and a performance version with a torque capacity of 600Nm. The performance version features upgraded clutches, with extra plates in the clutch packs, to increase the torque capacity for use with higher torque output engines. Falcon models using the Barra 190 engine are fitted with the standard version, while Falcon models using either the Barra 230, Barra 245T or Boss 260 powerplants will be fitted with the higher torque capacity performance version. Software and calibration The ZF transmission is able to tailor its responses to individual driving styles courtesy of a number of software functions and Driver Recognition features, all designed to deliver increased transmission functionality and performance, and a refined shift quality. The Sequential Sports Shift feature introduced on BA Falcon is a key element of the six-speed automatic transmission, offering the same style of adaptive and performance automatic modes as well as total manual control through sequential manual shifting. Torque converter clutch lock-up is available in all six forward gears, not just in the top two overdrive gears. When towing heavy loads at low speeds, such as in city driving or through hilly terrain, converter clutch lock-up in all gears assists with better transmission cooling and reduced fuel consumption. Electronic control of all gearshifts in the six-speed automatic transmission is via clutches rather than bands, delivering a more direct and refined shift quality. Calibration features of the six-speed automatic transmission include: * Grade Control Logic (Automatic modes) * When driving downhill, with sufficient brake pedal pressure, the transmission will downshift to provide increased engine braking. * Upshift prevention at zero throttle (Automatic modes) * When coasting downhill from rest, this feature inhibits upshifts beyond 2nd gear with zero throttle pedal input, to prevent a running away feeling. * Emergency downshift (Manual mode) * When in manual mode, if the throttle pedal is pushed through the detent to activate the kickdown switch, the transmission will downshift to a lower gear (depending on vehicle speed) to provide acceleration in an emergency situation. The transmission will then revert to full manual control, remaining in the kickdown gear and requiring the driver to input for upshift. Driver Recognition A host of advanced features are accessible to the driver as part of the Driver Recognition software with the six-speed automatic transmission. Driver Recognition matches transmission performance to the current driving style by considering acceleration and deceleration rates, brake and throttle applications, and cornering speed, to ensure the vehicle is in the right gear at the right time without undesired gear shifts. The transmission learns the driver's style and assigns a theoretical point system to certain driving scenarios to determine the activation point of particular features. The point system extends from a base fuel economy bias (0 points), through stages such as sporty driver (100 points), up to ehntusiast (200 points). The transmission software recognises various performance-based actions, such as rapid acceleration / pullaways, enthusiastic cornering, pushing the accelerator pedal through the detent and moving the shift lever into performance mode, and increases the number of points accordingly. By moving the shift lever across from adaptive to performance mode, the driver recognition function increases by 100 points instantly, making the advanced features more accessible. If the transmission had already learnt to 40 points in adaptive mode, then when the shift lever is pushed across into the performance mode it would become 140 points. In performance mode, driver recognition can learn from sporty, representing 100 points, up to enthusiast (200 points). Points can be gathered quickly as increases occur in blocks, while a more graduated, single point decrease in the score occurs when you return to a less sporty driving style. Advanced features Advanced features accessible through the Driver Recognition software include: * Brake support downshift (Automatic modes) * Driver Recognition will enable early downshifting during heavy braking, to provide engine braking and to optimise gear selection for tip-in (throttle reapplication) response. * Gear hold around corners (Automatic modes) * This feature will enable the selected gear to be held when the vehicle is cornering enthusiastically, to avoid an unwanted upshift or downshift through the corner. Differential wheel speed and the ABS sensors on each wheel detect cornering. * Gear hold going uphill / downhill (Automatic modes) * If the throttle pedal is released when travelling up or down hills, upshifts are prevented to reduce shift busyness on grades (on tip-in when going up hill) and to assist with vehicle speed control (reduce the need for repeated brake application). * Gear hold, fast-off throttle (Automatic modes) * Upshifts are prevented when the throttle position sensor detects the driver has instigated a rapid lift off of the throttle pedal (fast off) and maintains the current gear until the driver tips-in (reapplies throttle pressure). It also helps prevents shift busyness in sporty driving and inhibits the running away feeling when cresting hills. The Driver Recognition features allow for a tailored driving experience, where the transmission rewards different styles of driving at both ends of the performance spectrum. A lower point count and more normalised driving style will deliver significant benefits in terms of refinement and fuel economy, while a greater point count will reward sporty driving with sharper responses and a more defined sporty feel. All the Driver Recognition features are available on all models fitted with the ZF six-speed transmission, although certain features are more accessible on the sports XR models through a more performance-biased calibration. Transient rpm limit The transient rpm limit allows the engine to momentarily exceed the prescribed rev limit during upshifting. This enables wide open throttle upshifting of gears to be scheduled at an engine speed closer to the rev limiter than would otherwise be possible. The transient rpm feature allows the engine to exceed 6000 rpm up to 6250 rpm while the transmission is completing the gear change, thereby taking full advantage of the high rpm performance of Barra 190 and 245T engines. E-Gas! -- =Bt= milnersXcoupe "The Heretic" -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.amc-list.com/pipermail/amc-list/attachments/20070511/11aace37/attachment.htm _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list