So, I just swapped my stock 5speed for an RSX case with 06 Si internals and a VSS. Using this calculator- http://www.zealautowerks.com/transcalc.php, and this picture- http://img.photobucket.com/albums/v5...v3-28-08re.jpg
I am seeing that I should see reduced rpms at highway speeds. Specifically, at 60 and 80mph I should see 500-400 rpm drop, respectively. What I see instead is the exact same RPM in 6th at 60 and 80mph that I was seeing with my 5th gear of my 5 speed. Does this mean the internals aren't from an 06 Si, is the calculator wrong, or is my speedometer incorrect?

Engine is stock A3.