[G30M]

Originally Posted by cyam

So if all 4 wheels were spinning, then that'd be proper AWD mode and likely stock behavior. "Going nowhere" with all 4 wheels spinning - makes no sense.

according to the tuner, flashing back to stock does not restore your original software, rather the tuner has their own "stock" software they flash when you "reset"

that explains why Sport plus became a wild animal after flashing back to stock

it must be a European coding

i recall taking the car onto gravel road and trying to get the back end to come out in sport plus with DTC and nothing happened. with the new "stock" it's different.

this explains why

[cyam]

Originally Posted by G30M

according to the tuner, flashing back to stock does not restore your original software, rather the tuner has their own "stock" software they flash when you "reset"

that explains why Sport plus became a wild animal after flashing back to stock

it must be a European coding

i recall taking the car onto gravel road and trying to get the back end to come out in sport plus with DTC and nothing happened. with the new "stock" it's different.

this explains why

Thats weird. Firstly I know for a fact that xautomotive ONLY modify the VTG (the transfer case) programming, not the DEC switch or traction control, nor the M diff software.

Secondly I can confirm (having an EU spec car) that when the car was completely stock, with DTC on, the car would slide wildly with seemingly no intervention. It really surprised me when I tried it out as I thought it would allow some slip/sliding but would intervene before getting too out of hand, nope!

But maybe US spec'd cars are different - who knows. I'd find it weird, plus I have spoken with xautomotive and they said xdelete ONLY modifes the VTG software.

[rostrata]

My curiosity got the best of me despite my research and desire to not screw up the transfer case. Really just wanted to know more or less of how it would make the car behave even with that front axle still linked. I’m pretty shocked. Quite a wild adventure so far and I only flashed it last night (around midnight, because, bourbon). So far I’m finding it rather fun to use and the AWD sport setting on its own is nicely rear biased. Trying it in RWD only for a few days. Guess I should start putting some savings aside for a replacement case. 😬

[cyam]

Originally Posted by rostrata

My curiosity got the best of me despite my research and desire to not screw up the transfer case. Really just wanted to know more or less of how it would make the car behave even with that front axle still linked. I’m pretty shocked. Quite a wild adventure so far and I only flashed it last night (around midnight, because, bourbon). So far I’m finding it rather fun to use and the AWD sport setting on its own is nicely rear biased. Trying it in RWD only for a few days. Guess I should start putting some savings aside for a replacement case. 😬

What is it that you think will damage the transfer case? With xdelete nothing is going to damage the transfer case unless you are trying to constantly drift in awd or sport modes.

[G30M]

Originally Posted by cyam

What is it that you think will damage the transfer case?

the numerous threads in the F series

[G30M]

Originally Posted by rostrata

My curiosity got the best of me despite my research and desire to not screw up the transfer case. Really just wanted to know more or less of how it would make the car behave even with that front axle still linked. I’m pretty shocked. Quite a wild adventure so far and I only flashed it last night (around midnight, because, bourbon). So far I’m finding it rather fun to use and the AWD sport setting on its own is nicely rear biased. Trying it in RWD only for a few days. Guess I should start putting some savings aside for a replacement case. ��

it is a different car with AWD Sport lol.
if you read carefully it says RWD only unless it needs torque to front axle. now the conditions for when it thinks it needs torque to front axle i'd say is pretty limited. i tried to launch it on a damp tarmac (wasn't even that wet) in AWD Sport and it's spinning the rear wheels only.

[cyam]

Originally Posted by G30M

the numerous threads in the F series

That has nothing to do with this series. In RWD only mode the transfer case is not being used and xdelete makes sure the clutches are in the proper position to not cause issues. In AWD Sport it uses the transfer case less not more so logically it'll likely cause less wear than normal AWD mode.

Unless you are abusing it, doing the equivalent of drifting (constantly forcing loss of traction) in any of the AWD modes you won't be causing any more issues than stock to the transfer case, likely less.

[MichaelNRW]

Originally Posted by G30M

the numerous threads in the F series

Maybe because the F series driveshaft was not the same for xDrive and RWD :-)
The xDrive driveshaft was weaker compared to the RWD version...
So people killed it with xDelete.

[rostrata]

Originally Posted by MichaelNRW

Maybe because the F series driveshaft was not the same for xDrive and RWD :-)
The xDrive driveshaft was weaker compared to the RWD version...
So people killed it with xDelete.

And our ATC13 case is not built to the same specs at the ATC13.2 found on the M3 X Drive. Similar case. As far as the clutch packs go, eh, yeah, I was already on the same logic train as cyam. No engagement, no wear/slip. And that’s correct. Just hard to pinpoint exactly where you might see the most wear, or, in the worst case, damage. I personally can’t see how but I’m not going to pretend to be the engineer that designed this stuff. I’m just holding my breath until a year or two goes by without seeing any preventable failures that were merely caused by shitty drivers abusing their shit, not the box failing due to the case design commingled with the software mod itself. And those issues are hard as hell to ascertain the real issue. But I’m guessing most people just shove the thing into the most demanding mode and tear it up. Take it with a grain of salt, I guess!

[G30M]

anyone else spinning 4 wheels with sport plus launch when damp in stock flash or is it just my ex car doing that

my 550 flashed does not do that