Allison Swap in 95 Ram 5.9 12V
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.
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95 Cummins LML Allison Swap
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.
