I have a 3.5 converted to a return system. I have a question for all you guys running an FMU. With the Vortech FMU, the fitting in the dead center of the bottom of the FMU is IN or OUT?

I wasnt sure if I should run the hose to the stock FPR, or to the return to the tank?

Again, I'm a return system 3.5, and I need to know which Fitting on the FMU goes to the OEM FPR.

Thanks for the help....

 

The bottom fitting is the OUT fitting. Here's how it works in a nutshell....The FMU goes in between the fuel rail and the return line. The line that goes to the fuel tank you want to place the FMU there. Basically the line from the fuel rail you want to hook it up to the side of the FMU. Then the bottom fitting will go to the line to that leads to the fuel tank. So basically you are cutting the return line and placing the FMU in between it. Then all you need to do is hook up any vacuum line to the top of the FMU.

 

k thanks man, I thought I had it right.....