2016 Challenger RT Magnuson SC with 270 comp cam.
I tuned this car about a month ago and I dont remember it having this problem, at least not at wot.
The car surges at part throttle (between 40% and 70%). I can see in the logs that the throttle and timing are fluctuating when it does this. I can also see just before it happens the trans engine torque request changes from none to decrease. I tried disabling the trans ETC and Spark under torque management on the engine side and I also tried raising the Max torque limit on the transmission side. This did not help.
I havent been able to drive it on the street at wot today because of the rain but I know it did not do this on the dyno when I tuned it a month ago.
In the log the problem can be seen starting at 09:17:47