Allison Swap in 95 Ram 5.9 12V

[Lost0187]

Good evening fellow Ram owners have kind of a cool project im helping another customer with a 2013 Allison 1000 swap behind his 12v He has the transmission mounted and I'm working on the standalone wire harness. I got the TCM controller, OBD2, as well as a few other inputs finished. Took one of my VB on hand and tested all the solenoids and inputs. Next I'm going to integrate the a E60 GM controller to relay some data to the Allison controller such as TPS, coolant temp, boost pressure, crank signal, IAT, and possibly fuel pressure. This way since the 95 ram is so old and doesn't have a OBD2 interior connector for live data we can use the E60 to report these PIDs using a edge or similar device. The other various inputs will be disabled and of no use this will be done in the tune file so there isn't operational issues with the Allison. I want this system as close to factory operation as possible these inputs sent from the ECM to the TCM will ensure the smoothest cleanest shifts possible. Also on the TCM side the file will be modified to be more appropriately matched to the engine. I'm working on the ECM side and will see how the tune responds once I finish the wiring and log the live data both on the Allison controller and GM E60. I know you can run the Allison Controller standalone to a sense but it will always be looking for the other inputs VIA the J1939 network. I was Wondering If any of you dodge guys have gone down the rabbit hole of the 5.9 OR 6.7 Cummins Allison swap?

Also a key part I this swap will be use of the factory GM pedal modified to accept the 5.9L throttle cable for mechanical fuel control. I have the pedal ready just working on the bracket to attach so when you push the pedal it pulls the factory cable back towards the driver. I tried to get a TPS signal using a tps sensor but I don't think HPT has a sae J1939 pid for the TCM TPS signal. I figure once I have this integrated it will be smooth sailing.

[Lost0187]

Forgot to mention swap will will be a 6 speed as well. Here are some pics of the harness so far.

[Lost0187]

Been making progress on the harness side of the swap. I used both HPT & EFI LIVE to make the necessary changes to the programming of both the TCM and ECU i ended up using with the swap. The hardest part was getting a TPS signal to the TCM since it is programmed with GM software to start. I did try a Allison 2400 file I have with the same issue no TPS signal to the TCM. Finally I said lets try this and I linked a ECU to the to the TCM a pedal and boom I have what I need. I think doing it this way will be the best way to get the best results. Now the TCM will see various data I program into the ECU set up to the ISB 5.9L 12v Cummins. Also this swap will incorporate my 6 speed conversion I do for other Allison owners which helps make the efficiency improved. I also added various sensors to my stand alone TCM / ECU harness to give the truck a OBD2 serial / J1939 data link. The customer will add various sensors I program to his specs and he will have engine data such as RPM, vehicle speed, 4wd selection, gear range, IAT, fuel temp, fuel pressure, baro, boost pressure, coolant temp, and more.

This kind of job takes a lot of know how & time to get right, but I think when done correctly the truck will perform better than most other stand alone Allison controllers on the market. I will be re-looming the harness then shipping back to BFK FAB works for testing. I may build another for customers but he supplied me with the harnesses & ECU's for the project to save some money. Ill try to get some logs of the setup via HPT was using my flash scan due to the ecu having a DSP5 and HPT doesn't support EFI LIVE's custom OS.

[RGHTBrainDesign]

This is incredible. Great work around!

[Lost0187]

Thanks I appreciate the approval I have been working hard on this as I go making updates along the way just finished my final revision. I will make a log with the outputs and data I kept on the ECU side that way the customer can log various sensors from the 5.9L 12V. I ended up using a LLY ECU/TCM mixed with a BCM I had on hand. With this I was able to get everything working I wanted from tow/haul to good pedal position data which is key for the shift points and transmission operation. Originally I made the setup only with the TCM it worked but there were specific functions that are specific to the GM setup that I wanted incorporated into the standalone setup. I think once installed it will have a very clean look and everything will fit nicely. I used various pictures and measurements to build my harness but nothing beats actually having the truck for the best results. I will get this shipped out for next week so BKFABWORKS can get it installed and from there Ill make my final changes and get some logs with the speed sensors and pressure sensors actually under load and pressure. All my testing has made the next build I do so much easier I have close to a month in the harness build and he supplied me with wiring harnesses and computers to build off. I got the harness all loomed up annd think it turned out great. I also made a few jumpers he can tie into his original equipment incase we want to make it as close to like stock as possible. Today I will be flashing the custom Allison 6 speed conversion and the custom ECU tune file to disable any equipment not being used.

Here are some photos of the harness and how it will be laid out in the truck on the driver side fender well next to the battery ad engine fuse box. Might make him a bracket to hold the TCM & ECU on the wheel well The 12V uses a throttle cable so I will be making a custom bracket on the pedal to retain this so engine operation is the same as using the factory dodge pedal.

[Lost0187]

Just confirmed using the proper components & calibration it is possible to use just a Allison TCM on a swap project without the need for a ECU. This was actually just done by a person in Texas & I helped get the proper calibration in the controller and now he has proper transmission operation. You will need some specific components but this is good news. Now there is no need to extra controllers unless you like the ability to add extra sensors your vehicle did not come equipped with. If anyone is going down the Allison swap route or needs assistance look no further I'm here to help and give you my experience as I go testing and making things that don't belong together function.

[B00STJUNKY]

Just confirmed using the proper components & calibration it is possible to use just a Allison TCM on a swap project without the need for a ECU. This was actually just done by a person in Texas & I helped get the proper calibration in the controller and now he has proper transmission operation. You will need some specific components but this is good news. Now there is no need to extra controllers unless you like the ability to add extra sensors your vehicle did not come equipped with. If anyone is going down the Allison swap route or needs assistance look no further I'm here to help and give you my experience as I go testing and making things that don't belong together function.

Curiosity here. What are you doing to derate power for the shifts? I already find the prospect of sending the proper messageling over the CAN BUS to a 5.9L ECM to present a lot of potential road blocks as to what the 5.9L ECM would even do with that information, let alone trying to make it work over SCI (03-05), and much less anything older than that.

You're going a step even further by mating an Allison to what I presume is a mechanical truck (P-Pump). So that seems like it would makes it even more complicated to derate engine power for the shift. Are you just throwing power derate for shifts out the window in these scenarios?

[Boosteds550]

But why lol

[Jim P 2.0]

Why not? Allison swap was something I thought of doing on my 12 valve when I still had it. Better than the 47RE.