I'm looking for a diagram/drawing/schematic/anything that shows the operations/routing of a 2003 Z06's fuel system (non-FFS). I'm trying to design something for my own, and would like something to work off of.

I'm still confused as to how the dual tanks work. I'm curious about where the regulator is and how it relates to the fueling process. Those kinds of things.

anybody know where i can find something like this?

 

Just to help a little on a couple things, the regulator is incorporated into the fuel filter itself. That's why there are three lines on the filter. One for inlet, one for outlet and one more for fuel return to the tank.
Basically the dual tank incorportes an electric fuel pump located inside the left (driver's side) tank and mounted with the float assembly. It puts out fuel to both the fuel filter and simultaneously to the right side fuel tank. The pressurized fuel entering the right tank flows through a venturi effect apparatus known as a siphon or "jet pump". This "jet pump" (non-electrical) pumps fuel from the right tank directly into the left tank so that as the left tank is emptying it is constantly being re-plenished by the right tank. Some people therefore mistakenly think that the fuel being used by the engine is actually "coming from the right tank first" (because it empties first). Actually the fuel being sent to the engine comes directly from the left tank only and the right tank is merely replacing fuel pumped by the left, so therefore the right winds up emptying first. The right tank has it's own float assembly and is the only thing that is of an electrical nature assocated witht the right tank.
There is more of course (fuel filler hoses, vacuum/pressure system, etc) but really the best way to learn this fuel system is to study it in the factory repair manual. It lays things out pretty well.
HTH,
Robert

 

thanks for the help. From your description, this is what I got out of it:



Correct?

 

Close As per my drawing in the FI section, the feed to the venturi pump is teed off the pressurized feed from the electric fuel pump in the driver side fuel tank (not off the return as pictured above).

 

Correct. The left tank output line branches (or "y's") with one leg going to the fuel filter and the other to the right tank (jet pump).
AustinL911: That 3rd connection you show on the filter is the one going straight back to the left tank (fuel return from the pressure regulator inside the fuel filter) and it only returns fuel back to the left tank.

 

Heres all the info you should need..
http://www.corvetteactioncenter.com/....php?qstId=589

 

That's the FFS system. He needs non-FFS.

 

Eh, it's good info to have anyways. Thanks for your help in this thread, btw.

 

Anytime.