I need to start building the fuel system for my v8 datsun project. At this time I don't have plans for running e85, but I don't want to redo the whole system if I change my mind. So I know I should plan extra fuel flow requirements & at least have an area that a flex fuel sensor can be added. What about materials? Is standard nickle/copper line ok to use with high ethanol blends, or should I step up to stainless? Is 3/8" supply with a 5/16 return ok for sizing for a 350 to 400 hp engine or should I go up a size?
but they should be fine. (I mean, they need to be replaced every four or five years because the copper corrodes badly, but...) The main thing you should avoid is aluminum fuel lines.
