Fuel return line.

[APACHE 56]

Thanks Alan - you're comments make good sense.
Don

[RVbySDI]

Originally Posted by APACHE 56

ISSUE: I will soon have QB wings with fuel tanks completed. What is the best (assuming feasibility) of adding a fuel injection system fuel return line (vapor lock mitigation)?

I am considering pros and cons of adding a fuel return line for all the reasons discussed in the various links and threads on this topic. My query to Vans brought the response that "you can't add return line to QB tanks." I don't think that is true as I've seen some pretty dramatic aircraft mods over the years and adding a fuel return line seems to rank at the bottom of the tech complexity scale. So I'd like to solicit advice/consel as to not only "how" but if it is necessary with a particular brand of FI.
thanks,
Don

ECI has some detailed directions that include pretty good pictures on how to install the fuel return lines. Their instructions even include a parts list for everything you will need to make it work. As AllenC mentioned, it is not a complicated process as long as the tanks are off the wings. Their design has the return line traveling through the Z-brackets that attach the tank to the spar. It is a clean efficient path that I think will work well with any tank whether quick built or not.

Here is the website you can find that information from ECI http://www.eci2fly.com/exp

[APACHE 56]

Thanks Steve - that's a good web site!
Don