A while back in late 2008 i went to a ozhonda meetup at wsid and ran my mates integra vtir for him, car was bone stock, and my friend actually forgot to run 98 octane and had put 91 in it.... The car was in full trim plus had his work eskie and heaps of other stuff in it, not even spare tyre removed
Car has half a tank of fuel and im about 90kgs
First 2 runs where shit as both runs i missed a gear for each and ran a 15.8 then a 15.7
Last run i managed to get all gears in with an ok luanch 2.35 sixty footer and done a 15.4@91mph.... Was bit dissapointed becoz i didnt get any other runs and on my first run i got a 2.300 sicty footer but then went from 2nd gear into 5th, and still done a 15.8

I reckon that night if i removed the spare tyre and rear seats and excess weight and had 98 ron, i could have managed a 15.0 no problems

Tyres were shit with 18psi in fronts
Stock suspension
6000rpm luanch ridng the clutch out a bit then jumping on the throttle quick

A good bone stock vtir with low psi in tyres and high rpm good luanches can easily manage low 15's