M6 to A4 conversion
Le Mans Master
Joined: Feb 2009
Posts: 5,169
Likes: 199
From: Your Sister's Bedroom
im pretty sure you can just swap out the mechnicals and everything will work just fine. Ive never personally done this swap but I know people that have and I dont believe they had any issues with it.
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
I guess the PCM is told there is an auto then? When you tune an M6 it doesnt have the A4 tables for tuning. Is it recognized or get flashed?
Can you put me in contact with someone who did the swap?
Can you put me in contact with someone who did the swap?
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
To answer your question though, no it does not do an automatic recognition.
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Thanks.
With that info, Im baffled as to why RPM wants 17,000 bucks for the kit. I couldnt see it coming to more than 5k for parts plus their trans build on a 4L60 (2K for that?). Labor appears to be 10-12 hours to install everything.
With that info, Im baffled as to why RPM wants 17,000 bucks for the kit. I couldnt see it coming to more than 5k for parts plus their trans build on a 4L60 (2K for that?). Labor appears to be 10-12 hours to install everything.
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Adjusting shift points would be fun. I dont know much about A4s so I prefer to be able to tune with a laptop.
It would solve a few things for sure.
If it wasnt so street unfriendly, I'd be sporting the ECS powerglide right now. Chris said its not for me but I want to track the car with big power. At 6800feet elevation and the trans doing the work, I would likely get my first successful 9 sec pass with me driving my own car. I cant shift for my life.
It would solve a few things for sure.
If it wasnt so street unfriendly, I'd be sporting the ECS powerglide right now. Chris said its not for me but I want to track the car with big power. At 6800feet elevation and the trans doing the work, I would likely get my first successful 9 sec pass with me driving my own car. I cant shift for my life.
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Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
Former Vendor
Joined: Sep 2010
Posts: 682
Likes: 11
From: Anderson Indiana
Spin,
The $17k price tag isn't the transmission swap alone. That price includes everything in the entire drivetrain. From the engine back. That includes an SFI flexplate, SFI bellhousing, automatic torque tube, DSS prop shaft, Poly couplers, SFI converter drive flange, PI Vig converter with your choice of stall speed, Built Level 7 4L65e transmission, Stage 3 differential with your choice of gear ratio and 300m chromoly axle shafts, an TCI T-com transmission controller, automatic transmission pedal assymbly, automatic shifter, shifter cable, all cruise control and TCC lockup provisions are retained just like a factory installed automatic car. The price includes installation and transmission tuning.
The $17k is our top of the line A4 conversion without upgrading to the 4L80e or TH400. We would be more than happy to figure you a quote that better suits your needs if you choose not to go with all the upgrades we have available.
Just give me a ring if you have any other questions. I'd be happy to talk to you.
Thanks,
Jeremy
The $17k price tag isn't the transmission swap alone. That price includes everything in the entire drivetrain. From the engine back. That includes an SFI flexplate, SFI bellhousing, automatic torque tube, DSS prop shaft, Poly couplers, SFI converter drive flange, PI Vig converter with your choice of stall speed, Built Level 7 4L65e transmission, Stage 3 differential with your choice of gear ratio and 300m chromoly axle shafts, an TCI T-com transmission controller, automatic transmission pedal assymbly, automatic shifter, shifter cable, all cruise control and TCC lockup provisions are retained just like a factory installed automatic car. The price includes installation and transmission tuning.
The $17k is our top of the line A4 conversion without upgrading to the 4L80e or TH400. We would be more than happy to figure you a quote that better suits your needs if you choose not to go with all the upgrades we have available.
Just give me a ring if you have any other questions. I'd be happy to talk to you.
Thanks,
Jeremy
Race Director
Joined: Jul 2000
Posts: 16,499
Likes: 2,384
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
For $17K I'd rather buy a stock auto car and transfer the mods then sell the M6 car.
Melting Slicks
Joined: Nov 2002
Posts: 3,398
Likes: 2
From: Allentown PA
Its really more geared toward Z06 drag racers where there is no auto available. I had the swap in my C5 Z06, I loved it, the whole conversion is seamless. ECS did the work but it wan an RPM tranny/parts.
Former Vendor
Joined: Dec 2005
Posts: 418
Likes: 5
From: Anderson Indiana
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
With the A4 the TCM is mounted on the same bracket as the ECM in the passenger side fender.
I am doing just the opposite, I went from an A4 to the MN6 (complete A4 setup for sale). I have my car running but I am waiting until the holidays are over to get access to a Tech II. The BCM needs to see the TCM on GMLAN network, you will have to program the BCM with a Tech II. This also fixes a few other things like the DIC telling you to put your car in PARK instead of REVERSE and the cruise control working.
.
You can re-program the ECM easy enough with HP Tuners or EFI Live by doing a "write entire" with an A4 tune, do a "read entire" and tune from there. You can still apply your 2.5 or 3 bar OS if you use one since it is tied to your VIN.
If your car is an F55, the plug on the A4 harness is the same as the one on your engine harness. If it's not an F55 you will need both sides of the A4 plug.
Other than that it is just wiring.
Safety Car
Joined: Feb 2008
Posts: 3,712
Likes: 3
From: TEXOMA
St. Jude Donor '08-'09
With the A4 the TCM is mounted on the same bracket as the ECM in the passenger side fender.
I am doing just the opposite, I went from an A4 to the MN6 (complete A4 setup for sale). I have my car running but I am waiting until the holidays are over to get access to a Tech II. The BCM needs to see the TCM on GMLAN network, you will have to program the BCM with a Tech II. This also fixes a few other things like the DIC telling you to put your car in PARK instead of REVERSE and the cruise control working.
.
You can re-program the ECM easy enough with HP Tuners or EFI Live by doing a "write entire" with an A4 tune, do a "read entire" and tune from there. You can still apply your 2.5 or 3 bar OS if you use one since it is tied to your VIN.
If your car is an F55, the plug on the A4 harness is the same as the one on your engine harness. If it's not an F55 you will need both sides of the A4 plug.
Other than that it is just wiring.
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Selling a 2005 for 25K and buying the A4 car for 25K makes way more sense than buying all that. I'll just wait on the C7 and get the auto then. Hopefully the C7 will have the 6l90 and then the build cost for the trans will be at 1000 or so to strengthen it along with a higher stall. Paying 75% or the value of the car for an upgrade makes no sense.
If anyone with an A4 wants to trade parts with me doing all the work, please PM me. That I will go for. My trans is fully built and my diff has 2 hardened shafts with 4.10's. Its a C5 model and has been proven to run 9's on Cartek's R&D 2005 car.
If anyone with an A4 wants to trade parts with me doing all the work, please PM me. That I will go for. My trans is fully built and my diff has 2 hardened shafts with 4.10's. Its a C5 model and has been proven to run 9's on Cartek's R&D 2005 car.
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Will you sell me instructions on an A4 how-to swap? What do you guys do for a diff? Id like to continue to use a C5 as they handle insane power. Built 2005 C6 diffs are a time bomb.