You are correct in that once the lines are filled with fuel whatever goes in comes out in equal volume. Remember not all of the origional lines are of equal length anyway. What you should be more concerned about in changing the lines is that the fuel is under high pressure and any leak will turn into a blowtorch. If you replace the lines or fittings you MUST use the correct materiels (compatible with fuel) and fittings capable of operating under the temperatures and pressures which the origional parts were capable of. Anything less and if the worst were to happen it is possible the insurance company won't pay. This is another example of "if it ain't broke don't fix it".The hoses of the fuel system are not prone to failure, the worst that can happen to them short of a fire is that they can get dirty inside from dirty fuel. If you want to "dress up" your engine just put some kind of covering over the hoses. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxx, "Sean Howley" <tsuyoi@xxxx> wrote: > My friend and I were discussing the DeLorean fuel injection system today and we came up with an issue that I am curious about whether or not our conclusion was correct. The question is: If I were to replace my fuel lines supplying the injectors and installed the wrong hose size (larger inside diameter than stock), would this effect the operation of the system in any way? > > Our conclusion was that no matter what the size of the tube, as the fuel in added by the fuel distributor, the amount exiting should be the same as stock. In other words, the fuel line is only a reservoir for "holding" the fuel as it is moved to the injector. > > Sean Howley > VIN#2345 > > > [Non-text portions of this message have been removed]