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Power Strokes
6.0 Aftermarket
Kc 1.5 or 2
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[QUOTE="Inwayovermyhead, post: 1417067, member: 15270"] I compare a fuel injection system to an irrigation system since that's what I do for a living. When we "loop" the mainline, you get 2 advantages. You are in effect doubling the size of the feed pipe, and here's the important part, no matter where you tap into that line you will get the same volume. No doubt the stock fuel lines and dead end fuel rails in the heads were designed to provide equal volume/pressure when new, but when you start considering age of system, worn injectors flowing different rates, poor filter and system maintenance, tuning that holds injector open longer, installing bigger injectors, etc..., it becomes more difficult to provide a consistent pressure environment. As 6.0 Tech explained (and sorry for over simplifying your post), when you regulate before, your demand can potentially exceed your supply which would naturally and instantly drop pressure to injectors. Think of the poor performing stock regulator as a "restriction" that will only allow a pre determined amount of fuel through no matter how good your pump is. When you install an RR system, your pump flows directly to the injectors before it hits the regulator, basically moving the "restriction" after the injectors. Ironically, it is moving the regulator (restriction) after the injectors that allows you to build or HOLD as much pressure as you want, as long as your demand (injectors) doesn't exceed your supply (pump). [/QUOTE]
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