oh sorry guys... not enough info~
i have nothing but BOV, Air filter, lowered,,,, other than all std..
and granma... like not over 3000rpm.. during that half tank i did full boost till 100km only twice.
and im using shell v-power or mobile 8000.
and i live in East lindfield area which is norther surburb in sydney and going to uni 3 days a week to UTS during lunch time,
and come back about before 5 o'clock.. so not too heavy traffic...
so... i think my R34 is something wrong with fuel eco... 380 is really running rich with non-tuned...
once i fully boosted twice in a row, and i actually see the fuel going down...
any suggestion? whats SAFC and dyno tune? and please cost.....
cheers guys
and thx for your help...