Harsh 6-5 and 5-4 closed throttle and light throttle downshifts.
Hey, thought I'd throw this out here before I go drop another $400+ on a dyno/street tune. My current trans tune has a strange 6-5 5-4 downshift thing going on. It's at closed or light throttle. It will rev match even in drive for this two downshifts, then it bangs into gear pretty hard after the rev match. I don't quite get what's going on with it, as it's not supposed to rev match in drive. If I turn ct tq management off, it doesn't match, but it's still kinda bangs into gear. I don't want tq management off anyway. I can email my tune to anyone that's willing to look at it for me, but I don't think the tuner would appreciate it being posted up on the board.
And it only does it in those gears. If I don't let it get out of 4'th, the downshifts are smooth as butter.
2009 G8 GT. MSM.
Go: P1SC. Wiseco Pistons. Lunati H beams. Alkycontrol meth injection. Lunati cam. RCR H, I, Tb. Kooks Lt. Solo 3". ls7 MAF. CTS-V pump. ID850 injectors. ATI balancer. 3.27 gears. Yank SS3200. B&M trans cooler. Tuned by Pat G.
Suspension: Poly strut bushings. BMR front and rear sway bars & trailing arms. Poly diff bushings.
Show: Shark fin. Gxp rear diffuser. Tint. Debadged.
Electronics: Aeroforce gauges. Escort 9500ix. Onstar bluetooth. Home link. Backup camera.