Stock 3.6 RWD Challenger to 3.6 AWD Charger - 845RE

[dduncan55330]

Hey all, I was just wondering if it would be safe to copy the stock trans tune from a 2017 3.6 Challenger RWD (from the repo) to my 2017 3.6 AWD Charger? They have identical drivetrains 3.6 Pentastar and ZF-8/845RE, with exception to the BW 44-40 transfer case on my charger, obviously. The Challenger appears to have all the 4WD settings setup in the trans tune but I wanted to get some input before I tested it out because the ZF-8 is super complicated from what I've read. I've tested out the chally's engine tune already and it runs excellent.

If anyone wants to see the tune files, just let me know and I can post mine. The 2017 3.6 Challenger is on the repo already.

Any assistance for the tuning novice is greatly appreciated!

[DodgeBoy_8HP]

It should be fine...

Post both tunes over here. I can take a look at them

[dduncan55330]

It should be fine...

Post both tunes over here. I can take a look at them

Thanks man, I really appreciate it.

17 Charger AWD
17 Challenger RWD

[DodgeBoy_8HP]

It should be "ok" to copy tranny tune.

Keep an eye on:
- Shift scheduling -> shift pattern
- torque converter -> apply/release -> pattern map
- torque converter -> apply/release -> tcc mapping
- torque management ->forced torque intervention

Other than the point above, it should be fine.

Thanks.

[dduncan55330]

Thanks for taking a look! By "keep an eye on" do you mean it's fine to try it out as is then adjust it if it feels off or that I should probably have those settings adjusted beforehand?

Sorry to bother you but I'm brand new to transmission tuning and don't want to damage it. My goal is to get the transmission to be a little more responsive without sacrificing reliability, or with very little loss to reliability. Optimize it, so to say haha. I figured pairing a stock Challenger tune (engine and trans) would be a safe way to get more out of it without losing reliability.

Thanks again.

[DodgeBoy_8HP]

As it is quite different, depending on modes you have available, some shift schedules either will not work correctly or will have "crazy" tune.

Same idea for TCC.

So,
- Either, copy all and re-adjust shift schedules and TCC
- Or, skip the ones I listed and re-adjust as needed