Some real world times I have seen for the SRT8 would be mid to low 13's at low 100's. So something in the range of 13.3-13.4 @ 101-103mph
I have heard of one forum member running his 05 Limited Hemi stock at 15.2 but I dont recall the trap speeds. I know after he added cold air intake and exhaust he reached a very impressive 14.2 (again not sure mph) with other factors that could have attributed to that time such as cooler temps, launch, etc etc.
Have not heard of anyone running the 4.7 or 3.7 cars and I can gauruntee you they would be nothing to brag about especially the 3.7L.
Hope this helps,