Quote: Originally Posted by jwcardy
answer the question technically...why do we need it...
you dont!!!! a return line is used for larger pumps allowing the pump to maintain a steady flow of fuel there are benifitsto this
1 cooler fuel
2 less wear on pump
3 volume on hand is increased dramaticaly
3 less mechanical noise
you dont need one unless you are running huge injectors that when open drop fuel pressure so atomization of fuel sufers"lean out",with a return line, the return will shut to match the volume and pressure thats it end of story no majic
the cooler fuel will yeild some power also
ps its not the last injector starving .the laws of physics prevent that the pressure of fluid in a contained enviornment is the same even if its that poor last injector!
becareful what you read in the fourms 98%is bs from kids