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I don't understand something here, why do they put a regulator on the fuel rail in the Corvette when the fuel filter actually has the regulator built into it? I understand how a pressure sensitive regulator can bleed of excess pressure but how can a regulator restrict flow when excess pressure hits it? I'd be interested in seeing that design. The first one sounds much simpler to explain. A passive regulator with a return line is a simple concept. The one on our returnless newer rails is confusing.
What truly confuses me is how your's would work. You get high pressure to the regulator, it passes it and goes into the fuel rail. The fuel rail is setup with a return line with no restriction to the tank. Fuel runs through the rail and back into the tank. When does it have an opportunity to build pressure for the injectors? In the line before the regulator? Hmmm....no injectors back there. :nutz: [/b]
Works just like the truck setup. Excess fuel is bypassed at the rail mounted regulator and returns to the tank. The injectors only see regulated fuel pressure. The only difference in the systems is that the hi-pressure fuel travels a longer path before it hits a regulator. Same concept, just longer fuel lines......