A6 Automatic Transmission Durability
Thread Starter
Pro
Joined: Dec 2007
Posts: 674
Likes: 1
From: Miami Beach FL
A6 Automatic Transmission Durability
OK, anyone in here have a 2008 A6 C6 and Blown up the tranny? If so How much HP were you running to the wheels and for how long?
If you have a high HP car and havent blown up the tranny how much HP do you have and how long have you been running it.
Thanks just trying to get a guage from previous experience.
If you have a high HP car and havent blown up the tranny how much HP do you have and how long have you been running it.
Thanks just trying to get a guage from previous experience.
Intermediate
Joined: Feb 2008
Posts: 33
Likes: 0
Not sure how long it will last but i can tell you after adding a blower all this car does is bang off the rev limiter. Not fun and very anoying. Cars days are numbered. Was told when it senses spin even if the rev limiter is raised it will do it. IM NOT HAPPY !
Melting Slicks
Joined: Mar 2003
Posts: 3,116
Likes: 10
From: Macomb MI
Find a new tuner.
Melting Slicks
Joined: Mar 2003
Posts: 3,116
Likes: 10
From: Macomb MI
OK, anyone in here have a 2008 A6 C6 and Blown up the tranny? If so How much HP were you running to the wheels and for how long?
If you have a high HP car and havent blown up the tranny how much HP do you have and how long have you been running it.
Thanks just trying to get a guage from previous experience.
If you have a high HP car and havent blown up the tranny how much HP do you have and how long have you been running it.
Thanks just trying to get a guage from previous experience.
Burning Brakes
Joined: Mar 2006
Posts: 946
Likes: 0
From: Midland, TX........ 550 RWHP/520 RWTQ (A6)
I know of 3 A6s that have come apart at 550-600 rwhp.
Thread Starter
Pro
Joined: Dec 2007
Posts: 674
Likes: 1
From: Miami Beach FL
wow, do you know how long they were running the tranny w/ that power? were they tuned properly or revving like this guy?
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Burning Brakes
Joined: Mar 2006
Posts: 946
Likes: 0
From: Midland, TX........ 550 RWHP/520 RWTQ (A6)
All were tuned properly and came apart within 6 months. I know of 2 around the 700 rwhp level that are still running fine after 6-12 months but they are both centrifugal cars. I think a centrifugal supercharger (without all of the low end torque) places less strain on the trans then a roots blower or twin turbo.
550 rwhp and above is a gamble IMHO............
550 rwhp and above is a gamble IMHO............
Last edited by Bushong572; May 7, 2008 at 04:22 PM.
Le Mans Master
Joined: Feb 2002
Posts: 9,883
Likes: 518
From: Bergen County NJ
No, paddles you controll the shifts yourself. If you mash the pedal in third with the paddles on, it will stay in third untill you hit the upshift button.
Thread Starter
Pro
Joined: Dec 2007
Posts: 674
Likes: 1
From: Miami Beach FL
there is a pot of gold at the end of the rainbow
http://www.hptuners.com/forum/showthread.php?t=17393
its coming
once the shift pressure problem is dealt with, all the current trans builders will be able to pile against the 6L80 like there's no tomorrow; look for built transmissions to support well in excess of what the built 4L85's can handle
and besides, a 6L80 shares more than half of its components with a 6L90, which is rated for 664 ft lbs (compared against the 4L80E's 440; 4L85 is 460)
_
http://www.hptuners.com/forum/showthread.php?t=17393
its coming
once the shift pressure problem is dealt with, all the current trans builders will be able to pile against the 6L80 like there's no tomorrow; look for built transmissions to support well in excess of what the built 4L85's can handle
and besides, a 6L80 shares more than half of its components with a 6L90, which is rated for 664 ft lbs (compared against the 4L80E's 440; 4L85 is 460)
_
you are a messenger from God... if you see him/her again.. thank em for my vette... and forced induction... lol
Thread Starter
Pro
Joined: Dec 2007
Posts: 674
Likes: 1
From: Miami Beach FL
the 6L series and the 6T series transmissions from GM actually has a direct clutch to clutch interface, and the trans is actually able to meter the amount of fluid going out of every shift
which means if it sees more or less fluid than what is "normal" or OE stock, it goes to limp mode
which is why no trans company as of yet has released a built 6L80 or any 6L or 6T series trans yet
also have you considered an upgraded torque tube shaft?
the OE aluminum one does hold up well to increased power either
try for a carbon one or a HD ALU setup; no one as of yet makes a carbon shaft for the A6 (and i've been looking around for a LONG time - if you know someone please let me know IMMEDIATELY), and the HD aluminum shaft requires some welding
not pleasant either way
_
which means if it sees more or less fluid than what is "normal" or OE stock, it goes to limp mode
which is why no trans company as of yet has released a built 6L80 or any 6L or 6T series trans yet
also have you considered an upgraded torque tube shaft?
the OE aluminum one does hold up well to increased power either
try for a carbon one or a HD ALU setup; no one as of yet makes a carbon shaft for the A6 (and i've been looking around for a LONG time - if you know someone please let me know IMMEDIATELY), and the HD aluminum shaft requires some welding
not pleasant either way
_
