OK, result is in guys. I ran a 12,466@108,20mph with 1,860foot time on TEIN RA, street tyres that wore out ( Phillip Island track day ), Heavy duty clutch.
I did the 12,4 pass with second gear bog down so in my third attemp, i dumped it at 7,5k. There was no bog down, as i slamed it into 2nd, rev was still at 6k which is good where when it bog down before it went to 4,3k, car make noise but didnt go anywhere i then realise the freaking clutch is slipping.
Next time i'll go out try to dip it into the flat 12 or hopefully high 11 with proper GTR rims ( as i still running on 235 front and 265 back ), good tyres, clutch and see how i go. I belive my transfer case still confuse even down the end of the terminal as i look at the tougre gauge i had around 30% power to the front where it should NOT. It should have 100% to rear.
Anyway i only own my gtr for 2,3 months so there is a lot to learn about it but i'm can tell u now i love the launch on the GTR. ****ing awesome.