United Motorsport Haldex tune...clearly it's transferring more power!
Per United, the stock setup can transfer a max of 50% of the available torque. Stock that was 199 lb-ft so theoretically 50% can be transferred for ~100 lb-ft. The tune is supposed to remove that limit and allow 50% of whatever power you are making so for me on the IS38/Unitronic on my 4Motion Sportwagen, that's around 325 per Uni's dyno sheet so I should now be able to get 50% of that for 162 lb-ft. I was getting a max of roughly 30% of the available before the tune. if this is correct.
The Graph shows a standing launch pre- and post-tune logging within the brake control unit (3) the awd channel "nM". This is clearly not the actual torque but some proxy/measurement that the ECU uses and matches roughly what United's graph on their site looks like so figured this was the way to do it.
I didn't take the post-tune run up to the same speed as the pre-tune run so that's why the post-tune line drops off out on the right. OBDEleven sucks big-time for logging and doesn't always use the same interval for data points - I did the best I could normalizing them and some of the slight differences in the 2 graphs' trend matching each other are most likely related to that but it's close enough.
Now for the big f-up on my part...I should have done a pre-run last week before my visit to New German Performance where I got the tune..forgot that the one I had was from last June when I was still on the IS20 (wha wha whaaaaaa)...what does that mean? I don't think much b/c the torque for both tunes is v. close, more hp on the 38 but torque is about the same (310 vs. 324) and I believe this is just showing power transfer so I *think* the graph would have looked about the same on the IS38 pre-Haldex tune.
Datazap file:
https://datazap.me/u/karstgeo72/pre-vs-post-haldex-tune-launch?log=0&data=1-2