This is an old video that I found on my hard drive of my tach...don't worry, the factory tach is off, and I'm not actually beating on my car that hard...It's closer to about 9700rpm when I shift.
RPM!!! <----Link
You will need the newest version of quicktime to view this:
http://www.apple.com/quicktime/download/
then just click open...
Later,
Aj