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Board: Porsche - 911 - 997 Language: English Region: Worldwide Share/Save/Bookmark Close

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    Jun 28, 2004 6:45:45 PM

    Paulo_Rangel_Melo
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    Paulo_Rangel_Melo
    Loc: Portugal , Portugal
    Posts: 1528, Gallery
    Registered on: Nov 23, 2003

    997 tiptronic diferent that the 987???

    Hey guys...

    These was posted not so long time ago...

    It's a litle bit of an article from AutoCar regarding the 987.

    "(...)A six-speed manual 'box will be standard, but buyers can pick a new six-speed Tiptronic operated by steering- wheel buttons or a push/pull mechanism. The DSG-style dual-clutch unit in this autumn's new 911 will be available later in the Boxster's life.(...)"

    If i'm not wrong that push/pull mechanism is not avaliable on the 997 altough it's present on the Cayenne if i'm not wrong.

    These means they're diferent???

    How about the DSG, i've red some reports about the DSG system for the new Audi A3 and all of them say it's amazing.

    Anybody knows anything more about the new tiptronic and DSG for the 997???

    Woshhhhhhh

    Jun 28, 2004 7:00:20 PM

    CFM
    Rennteam Moderator
    CF
    Loc: Florida , United States
    Posts: 1113, Gallery
    Registered on: Mar 30, 2003
    Reply to: Paulo_Rangel_Melo

    Re: 997 tiptronic diferent that the 987???

    The tiptronic is the same as the one in the 996.
    5-speed.

    DSG most likely introduced for model year 2006.

    Jun 29, 2004 6:15:52 AM

    temm
    Rennteam Master
    temm
    Loc: Oslo , Norway
    Posts: 4122, Gallery
    Registered on: Jun 24, 2003
    Reply to: CFM

    Re: 997 tiptronic diferent that the 987???

    Quote:
    CF said:
    The tiptronic is the same as the one in the 996.
    5-speed.




    Enhanced Tiptronic S available
    Tiptronic S is Porsche's optional automatic transmission that allows manual gear selection through either the lever on the floor console or via switches on the steering wheel. The five-speed unit allows the driver to use the thumb switches to change gear momentarily, for example, for passing or to downshift for a curve, even while the floor lever remains in its automatic position.

    Several modifications have been made to Tiptronic S in conjunction with the increased torque produced by the 3.8-liter engine in the 2005 Porsche 911 Carrera S.

    To provide quicker response in full acceleration from a standing start, stall speed has increased so the converter lock-up clutch is closed and power flows more smoothly. Instead of making the first-second shift at 6900 rpm under full power acceleration, Tiptronic S now holds first gear until the engine achieves 7200 rpm.

    In addition, the oil pressure build-up has been fine-tuned and clutch plates modified to allow the Tiptronic S to shift more smoothly. New lubricating fluid not only reduces friction but also extends the transmission fluid change interval from 100,000 miles (160,000 km) to 112,000 miles (180,000 km).

    Throttle tip-in mimics enthusiast's driving technique
    To mimic the way an enthusiast driver manipulates the accelerator, brake and clutch, changes to the engine management software produce a slight boost in engine speed during aggressive downshifting. This shortens shift time and enhances gearshift mesh.

    The PSM OFF function has been modified so that when the Tiptronic S selector lever is in its manual mode and the PSM OFF switch is activated, the transmission will not shift up even when the engine reaches the rev limiter. This allows the enthusiast driver to drive with the engine near its rev limit while maintaining the selected gear.

    As with the six-speed manual transmission, a shorter spur gear ratio works in conjunction with the larger standard rear wheels to achieve maximum top speed in the top (fifth) gear.

    To keep the enhanced Tiptronic S operating at proper temperatures, the gearbox is equipped with an additional oil/water heat exchanger with two additional cooling layers and with a more powerful coolant pump.

    Jun 29, 2004 9:34:02 AM

    RCA
    Rennteam Administrator
    RC
    Loc: Rennteam HQ , Germany
    Posts: 59590, Gallery
    Registered on: Mar 26, 2002
    Reply to: temm

    Re: 997 tiptronic diferent that the 987???

    temm, CF was actually referring to the 5-speed issue (6-speed Tiptronic) only, not the technical differences.

    Jun 29, 2004 9:43:28 AM

    temm
    Rennteam Master
    temm
    Loc: Oslo , Norway
    Posts: 4122, Gallery
    Registered on: Jun 24, 2003
    Reply to: RCA

    Re: 997 tiptronic diferent that the 987???

    And I was telling Paulo something more about the 997 Tiptronic.
    Maybe I should have quoted him instead.

    Quote:
    paulorangelmelo said:
    Anybody knows anything more about the new tiptronic and DSG for the 997???


     
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