68TR250
68TR250 Reader
7/18/16 12:17 p.m.

I have a friend that would like to swap the auto out of his Magnum for a 6 speed. Web searches make it look difficult to do because of the electronics. What say the herd? Too difficult / expensive to attempt? I did see one Youtube video of a transplant that did move in and out of a garage. Thanks

RossD
RossD UltimaDork
7/18/16 12:23 p.m.

If he already has a V8 that was in the equivalent year Challenger with a 6 speed, I bet grabbing that ECU would do the trick. Past, guessing however, ... ¯\_(ツ)_/¯

Chadeux
Chadeux Reader
7/18/16 12:33 p.m.

Acccording to the various LX/Charger/Dodge forums I've stumbled into, the body control module thing makes it a pain.

Advan046
Advan046 SuperDork
7/18/16 12:39 p.m.

I think it depends on the amount of stock electronics work with the manual. Which you probably won't know until you get it all back together and try to start it up. Maybe there is a way to get a Challenger program into the ECU and/or BCU and/or TCU.

Would be a nice package if you can get it to work.

Robbie
Robbie GRM+ Memberand UltraDork
7/18/16 1:16 p.m.

What manual transmission would you use? I guess there is the challenger one, and you might be able to use pedals, hydraulics, ECU, gauges, console, shifter, etc, but I'd doubt that would be cheap or easy to source the parts.

You could just go LS+t56...

Can anyone tell me what this 'body control module' does? Other than anti-theft, I can't see much reason for engine computers and body (lights, warning chimes, locks, windows, radio, etc - right?) computers to really need to talk much.

¯\_(ツ)_/¯
¯\_(ツ)_/¯ Dork
7/18/16 3:17 p.m.
Robbie wrote: Can anyone tell me what this 'body control module' does? Other than anti-theft, I can't see much reason for engine computers and body (lights, warning chimes, locks, windows, radio, etc - right?) computers to really need to talk much.

Sure, but this is the company that built a car you could drive remotely by hacking the berkeleying radio.

Appleseed
Appleseed MegaDork
7/18/16 4:08 p.m.

The floor pan is an issue.

stroker
stroker SuperDork
7/18/16 8:05 p.m.

Current Magnum or OLD Magnum...?

Advan046
Advan046 SuperDork
7/19/16 12:41 p.m.
Appleseed wrote: The floor pan is an issue.

Floor pans where it matters were common if I remember. The issue may be that they changed the floorpan after the magnum was cancelled. I do remember planning production line space to allow production of Chargers and Challengers with manuals when the Challenger was launched. Nothing was needed but space for another set of tools for the clutch assembly volume increase.

I say do it, engineer a good solution. Sell said solution. Bam KMiata style.

Knurled
Knurled GRM+ Memberand MegaDork
7/19/16 2:23 p.m.
Robbie wrote: What manual transmission would you use? I guess there is the challenger one, and you might be able to use pedals, hydraulics, ECU, gauges, console, shifter, etc, but I'd doubt that would be cheap or easy to source the parts. You could just go LS+t56... Can anyone tell me what this 'body control module' does? Other than anti-theft, I can't see much reason for engine computers and body (lights, warning chimes, locks, windows, radio, etc - right?) computers to really need to talk much.

Everything is interconnected. Everything.

The beauty of CAN systems is you only need, say, one fuel sending unit, one coolant temp sender, and that goes to the computer module with the highest priority and then the network distributes it elsewhere as necessary.

So your instrument cluster gets most/all of its gauge data by CAN from the engine computer. For example. (Yes, even fuel level. Computer NEEDS to know that for evap reasons. Instrumentation is secondary)

Now let's say you use the stereo speakers for the door chime, turn signal chime, other warning chimes. Stereo has to be on the CAN. And since it's on the CAN you can do things like speed sensitive volume, at this point it's just a few lines of code. Seems complex but it also eliminates 3-4 other noisemakers that could be duplicated for free with a few lines of code in the stereo. Or rather, a few lines of code in the BCM/whateverCM and a "make ding sound" command to the stereo.

Everything is interconnected like this.

The fun bit is there is not ONE network, there can be 6-7 networks in the same car, depending on the speed required. Usually the BCM is the gateway module for cross-network communications, but not always.

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