These times cant be true...

USAFControl

What up everyone. Well, in the past month I installed a Nismo S-tune exhaust along with a bullydog tuner. I hook up the chip to my computer and downloaded the lastest package for the 370z. It took about 15 min too sinc up with my car's ECU. I changed the rev limiter to 7800 RPMs and turn the Top Speed Limiter to 180mph. I also change the throttle sensitivity to extreme for a little performance run on a "closed" road. I selected the performance test option and it told me to make a complete stop. So I stopped and as soon my car moved an inch the time would start. She revved and had a great launch, but unfortunately these results seem too good to be true. Now I must say, my car does seem to pull a good bit quicker but do any of you have a guess on why the results came out like this?