Wondering if this is possible...
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
ANYTHING is possible ... it's just a matter of $$$$$$ 
You'd be looking at a pretty major project .... Besides the issue of getting it to fit in your drivetrain, the Automatic is controlled by the PCM (Powertrain Control Module) which also controls your engine. Your PCM can only control a 4 speed automatic, so you'd need to replace your current PCM with one from a vehicle that supports the 6 speed auto, and then get the PCM to control your LS1 engine, which would add some work to this ....
If you're really serious, I'd contact these guys and ask them if they could/would do it and at what price ...
http://www.rpmtransmissions.com/index.html
You'd be looking at a pretty major project .... Besides the issue of getting it to fit in your drivetrain, the Automatic is controlled by the PCM (Powertrain Control Module) which also controls your engine. Your PCM can only control a 4 speed automatic, so you'd need to replace your current PCM with one from a vehicle that supports the 6 speed auto, and then get the PCM to control your LS1 engine, which would add some work to this ....
If you're really serious, I'd contact these guys and ask them if they could/would do it and at what price ...
http://www.rpmtransmissions.com/index.html
Racer
Joined: Jan 2003
Posts: 411
Likes: 1
From: Newhall CA
What are you really trying to accomplish? Better gas mileage? Or you just want an A6? If you're just looking for more gearing, you might try searching for an external overdrive unit. I know these were discussed a number of years ago, not sure if they really ever "made it."
- Colby
- Colby
Thread Starter
Pro
Joined: Jun 2007
Posts: 525
Likes: 0
From: Sometimes Miami Sometimes Orlando Florida
Im not planning on doing anything as I have no money to spend on the car with the exception of gas. Its just something that is an interesting idea to discuss, imo atleast.
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
As I already said in a post above, you need a new PCM to control the 6 speed automatic, BUT the new PCM uses a communication protocol called CAN (Controller Area Network), and the computers in a C5 use a different system called the Class2 Serial Bus. You'd have to find some way to either upgrade ALL the other computers in the car to CAN, or put some other computer in to act as an interface between the new PCM and the existing computers .....
Let's just put it this way ... by the time you're done with the project, you will have spent more money than a new C6 with an A6 would cost ..... stupid idea ...... nothing to discuss.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Because you have no money But FYI
I wont go into great detail.... the swap is done all the time... usually when there is a doner... this is just mechanical and straight forward, the PCM needs to be reprogramed. Rodney At RPM who does this all the time has several doner set up available. you can easily go either way, MN6 to A4 or the other way around.
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Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
yes this would be a major major effort...
Race Director
Joined: Jan 2007
Posts: 16,513
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From: Official Dirty Dozen Member
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
Again, anything can be done, but think about it ... you gotta replace virtually every electrical device in the car to make it CAN compatible ... but now you walk up to your car and want to open a door .... the C6 door handle arrangement is totally different ... how do you integrate that ???? ... and the keyless start ????? Like I said before ... you'll spend as much (or probably more) putting the SIX speed automatic in a C5 as a C6 costs ...... 
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
