One of the local drifters here in the west (borneo) runs a rb30det ceffy and has done for a while (gets thrashed sits on limiter all day). I asked about the build he said he went through a couple motors at the start all to do with oil issues but most of them still lasting a season or so. the latest motor has been in there for a few years with no problems, he said the only difference between the last motors and this was a dry sump setup. I would say for your street car no problems running standard gear but for a track car it might be worth the initial investment in a good dry sump setup or even a jun/nitto after market pump that way you can push your car hard without the thought in the back of your head that if you push too hard it will break.