6 speed automatic transmission
08-12-2002, 02:56 PM
#1
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6 speed automatic transmission
Why is the automatic a four speed and the manual a six speed? Why dont they make a six speed automatic transmission?
08-12-2002, 03:14 PM
#2
Burning Brakes
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Re: 6 speed automatic transmission (ur2slow4me)
As a gross generalization, the planetary gearset in the automatic lends itself to a specific number of ratios; planet carrier held=1st, sun gear held=2nd, two gears held=3rd, 4th usually an overdrive. Adding gears means adding a planetary gearset and much more widgetry.
08-12-2002, 03:41 PM
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Re: 6 speed automatic transmission (ur2slow4me)
The technology simply hasnt progressed quite that far yet.
New Mercedes have a 5speed auto now, and the Audi's have a new automatic with no gears at all. It wont be long before GM builds a new automatic with more gears.
New Mercedes have a 5speed auto now, and the Audi's have a new automatic with no gears at all. It wont be long before GM builds a new automatic with more gears.
08-12-2002, 04:11 PM
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Re: 6 speed automatic transmission (vader86)
The technology simply hasnt progressed quite that far yet.
New Mercedes have a 5speed auto now, and the Audi's have a new automatic with no gears at all. It wont be long before GM builds a new automatic with more gears.
New Mercedes have a 5speed auto now, and the Audi's have a new automatic with no gears at all. It wont be long before GM builds a new automatic with more gears.
:yesnod:
08-12-2002, 07:32 PM
#5
Burning Brakes
Re: 6 speed automatic transmission (vader86)
It wont be long before GM builds a new automatic with more gears.
Very little torque capacity though.
08-12-2002, 07:53 PM
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Re: 6 speed automatic transmission (ur2slow4me)
The new C6 will have more the 4 gears in a auto.
08-12-2002, 10:01 PM
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Re: 6 speed automatic transmission (mackeyred96)
I read some time ago that the C5 was going to have a 5 speed auto. So now I suppose the C6 might get it.
08-13-2002, 12:35 AM
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Re: 6 speed automatic transmission (mackeyred96)
The new C6 will have more the 4 gears in a auto.
08-13-2002, 12:36 AM
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Re: 6 speed automatic transmission (chaos on wheels)
Not long at all; GM makes the 5 speed auto for BMW's: http://www.gm.com/automotive/gmpower.../5l40_main.htm
Very little torque capacity though.
