First off i have no doubt you (Giz01) have footage of 2 stock GTRs running low 14 sec passes. But do you honestly believe thats the best they can do in stock form? If so you are fooling yourself. Im not saying they are the fastest cars out there, but they are definatly good for at least low 13s stock.... I have seen them do these times. Id say driver ability/track conditions and the possibility that the car was having problems such as slipping clutch etc etc.
Secondly "pisnnissn" there was no need to take that tone and swear at me. I know what lightly modded Silvias can do, my mate run a 13.6 with just exhaust, POD, FMIC and 15psi which is pretty impressive. But really its a 2 litre 4cyl turbo vs a 2.6 litre 6cyl twin turbo..... (And the price tags show this) Like Ken said your comparing apples with oranges.
Plus the fact that you "dont give a shit" about my opinion really doesnt worry me in the slightest, because you have proven in each post that you are really only on here to stir shit, which isn't welcome on these forums.