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Posted by John Waak on Sunday, August 03, 2008 at 17:42:01 :
In Reply to: psi for electric fuel pump... on a 47 posted by 68427vette on Sunday, August 03, 2008 at 16:23:56 :
Different opinions on this. Some report good results with as little as 1 to 2 psi. Others recommend 3.5 to 4. I researched this a while back and decided to run at 3.5 psi, and run a return line back to the tank.
Others are spontaneously combusting at the mere thought of replacing the reliable mechanical pump with an electric. A search of the archives will bring up previous discussions with good pros and cons. In addition to the electric pump, you will want to run a filter before the pump, and very seriously consider an oil pressure shut-off switch wired in to the fuel pump's electrical circuit. Good luck.