Your launch is accounting for most of your 14.1 second time, followed up by shifting right at the limiter very quickly an keeping the car straight. It takes practice, but more track time will bring those times down into the 13's!
Another factor is gas, which I have found seems to make a noticable difference since some gas will cause KR more than others. It's all about the formula. My 07 350Z always ran best on QT 93. If it wasn't for the slave cylinder issue, it would have seen a high 12 stock. As it stood I had to feather it at no more than 2,500-3K rpms, or the pedal pressure would drop. Doing that though, it would run 13.1's pretty consistently and trapped as high as 109.03.
The 370Z should be able to beat that mark by a little.
Practice, and you will be happy with the results. Oh, and make sure to do a little quick tire cleaning burn out, for just a few seconds. It helps to bring the rubber up to temp and clean off all the crap that is stuck to your tires, before launching.
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2007 350Z 6 speed, San Marino Blue *stock*
Best 1/4 13.157, Best trap 109.03, 2004 G35 Leather Sedan OB *stock*
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