Hi
is this your setup ? and is it working ? like this , or it is only an example
i see only one fuel pump , the main fuel tank is gravity feeding the small half... gallon swirl tank ?
i will explain to you what i learn and why , in a engine out it is always the smaller things that ad up
and stack up , fuel system can look really simple , some say it work like this , but sometime it can work.. to the environemental condition it cant... fuel heating vapor lock , fuel frothing boilling , fuel pump cavitate
with mogas depend on many factor , fuel composition , state , season , state altitude , all can play on RVP reid vapor pressure
fuel volatility
i dont like small swirl tank , or small header tank with fuel return in it , fuel heating problem prone
fuel return is always for me in the main big fuel thank , bigger heat sink fuel mass
Steve Henry on his efi stol plane dont put smaller than 5 gallons header tank if he return fuel in it..
i know a small plane in USA heat with small header tank with 2 fuel pump that have an engine out and crash damage the
plane with a efi engine , the engine restart after the crash like there have never a problem...
i will monitor and data log fuel temperature , because i have it in my flex fuel ethanol sensor , and the fuel model in my efi system work with fuel temp to compensate for fuel density change..
is it for your raf 2000 subaru engine ?
is it your system in the picture ? before i can tell you my idea on the installation of your fuel flow sensor
and fuel system configuration choice