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Article - Install a 4R70W into a Cobra

88K views 270 replies 54 participants last post by  lloyd393 
#1 ·
This thread is for discussing Dave King's article on "Installing a 4R70W automatic into a 03/04 Cobra"

The article can be found here.
 
#123 ·
I just noticed this excellent thread. Because we've done quite a few of these type of conversions for 05' and up Mustangs (with either a stick or an automatic) I thought you might be interested in seeing our Tech Report and a few installation photos: http://www.fbperformance.com/page.asp?get=40&t=NoP

http://www.fbperformance.com/page.asp?get=18&t=Top2

We decided to publish the 5R55S automatic version of this because its the more involved conversion that requires changing and reprograming the OEM computer.

Let us know if you have any questions.
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#8 ·
I am getting ready to do this to my cobra, would you guys suggest a manual or fully auto valve body>? are there any pros/cons to it at all either way? i like the idea of still shifting, but i dont like the idea of being able to accidentally shift into overdrive and destroy the tranny.
 
#18 ·
I'm a little confused regarding the 2003/2004 cobra computer. I understand that the terminators didn't come with an auto trans, but is there a way to wire it up anyway? I have a FULL 4r70w setup (harness, sensors, everything) and I would like to use it with my 04 cobra motor, and 04 cobra computer. I don't want to lose the IAT1 and the MAP sensor, etc. Great article btw.

Any advice? Thanks in advance!
 
#20 ·
Actually you can use a trans controller and keep the cobra EEC. I plan to use the Baumannator with their wiring harness for the 4R70W i have built for my setup. There are other choices of controllers like Compushift and Powertrain control systems.
 
#21 ·
Oh wow, the Baumannator is a lot cheaper than i had expected. Thanks for your reply!
 
#22 ·
I've not used a Baumannator before, but I have used this - http://www.powertraincontrolsolutions.com/ and had great results with it. Very easy to setup, has a wizard for setting everything up, and then you can make adjustments after the fact, but I found the wizard did a damn good job.
 
#27 ·
shhakg...exactly! Either use a controller for fully automatic shifting ( baumannator or compu shift) or a manual valve body that you shift yourself with the 03/04 Cobra EEC.
 
#28 ·
will i need a mach 1 computer if i had a new computer installed( it was a mach 1 reflashed and put in my cobra) but now with a cobra tune. my other computer blew, and i have this as a replacement.
 
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