I hate my speed governor
Yeah, the speed limiter sux! :x
I worked up a spreadsheet to determine the maximum speeds based on the stock tires and wheels (for the 3s), gear ratios and rpm redline. In 4th gear the maximum speed at 6500 rpm is 116.6 mph; in 5th gear the top speed possible at redline is 149.7 mph but with drag and other parasistic losses the engine may not be able to pull that hard.
Anyway, here is an image of the spreadsheet analysis. I also worked up the rpms for various speeds:
Forensic Engineer (CSI with a Pocket Protector)
2004 Mazda3 5dr, Lava Orange w/ Black Accents, Injen CAI, Magnaflow, Progress Springs & Rear Sway, Alpine F240, Infinity 6802, Black Racing Sparco NT-R Wheels w/ Falken Ziex Rubber, 35% tint all the way around