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PDA



Kaptain
07-13-2006, 02:52 PM
press release

5-30-2006

The V-8-powered 2007 SRX will get a new 6-speed Hydra-Matic 6L50.

<b>- Wide 6.04:1 overall ratio spread delivers improved fuel economy, performance and a shift feel that is seamless to the customer

- Advanced clutch-to-clutch shift operation

- Manual range selection for driver-selectable performance

- Manufactured at GM's Ypsilanti, Michigan. Transmission Operations (YTO)

New 6L50 RWD and AWD six-speed</b>

The 6L50 is designed with the same modular flexibility as the larger 6L80 and is fully compatible by using the same advanced electronic controls. As with the 6L80, the 6L50ís gearset configuration enables the same 6.04 wide overall ratio.

As with other GM six-speeds, the 6L50 delivers smaller steps between gears, enabling the vehicle to quickly find the best gear. A higher numerical first gear delivers strong acceleration from a standstill and two overdrive gears enable improved fuel economy through lower engine rpms at cruising speed. Also, the lower rpm achieved with the sixth gear reduces engine noise and vibration on the highway.

The 6L50 also uses the Driver Shift Control feature, which allows the driver to shift the transmission like a clutchless manual gearbox. Also, the transmission is calibrated to override the automatic gear selection during closed-throttle and high-lateral acceleration maneuvers, rapidly downshifting with nearly synchronous engine speed matching for quick power-up when the throttle is reopened. This gives the feel of a manual transmission during deceleration. Electronic safeguards prevent over-revving.


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