Alright i couldnt find much from searching, but im about to move to a external fuel pump setup with surge tank to replace my single walbro 400lph pump. I'm looking at a fuel system capable of supporting 650-700rwhp on e85.
My idea is to use 2x044's pumping into the standard feed and return lines, then have -6 feeds from the end of the hard lines to each end of the fuel rail and have a additional -8 return line to the surge tank.
I'm interested to know what others have done with the return line from the surge tank to the main tank, is it worth upgrading to -8 hose with a bulkhead fitting on the tank to lower the restriction of returning fuel or just use an adapter into the factory return line from surge tank?
also my fuel rail has a -6 return to the fpr, is it worth modifying to -8 or is it all overkill
Also if i did use a bulkhead fitting whats the best option with the jet pump, is it necessary as it looks to be quite a restriction to a higher capacity fuel system