I searched, and I can't find much. Anyway, its time to buy the oil lines for my turbo project. The turbo is a turbonetics t72 (t4). I already have the feed line fitting, but I honestly have no idea where to go from here. I know that I need a return line fitting, a fitting for the oil pan, a fitting for the oil pressure sending unit (and a "T"), and also the lines. But I'm not too sure what size lines or anything like that. What designates the size of line I should get?