4 Attachment(s)
2015 Reaper surging on acceleration
New to gen 5 tuning as a whole. My personal stuff is all gen 3.
Customer has a 2015 reaper, 6.2l with the Magnuson 1900 supercharger tuned by Lingenfelter. He brought it in saying it was hunting gears, turns out there is something "surging" the TB on acceleration. Does not always happen, but also somewhat regularly. Throttle control source always says torque, and the TB is being commanded to do what it does, thus eliminating a weak TB motor and such. I'll attach a log and tune, but basically around 3000ish RPM and up, and at 50-60% throttle the TB starts opening and closing some on its own. Unsure of the cause, and need some direction here. Looked through the VE tables and the torque management/model tables and do not see anything jumping out at me. Can someone give me some pointers as to what is going on? Does in in 2nd, 3rd, and 4th.
surge log 1 03:35:55.492 after the shift into 4th.
surge log 3 right after shift to 3rd time 03:00:17.767, also again at 03:03:23.128, major one time dip at 03:03:42.554
surge 4 log 03:22:31.115 major dip but did not surge
Attachment 110135Attachment 110136Attachment 110137Attachment 110138
Thanks for looking and hope you can give some advice!