Reply to "Fuel pump - Electric vs Manual"

Another thing I didn't do but should have, is to rig a recirculating line from the carb inlet back to the fuel tank. Along with the before-mentioned.pump problems, is the fact that it does your electric pump no good to be running full bore against a closed float needle. Better it should vent excess pressure back to the tank as in all fuel-injection systems. This presents a problem with Panteras, as modifications to the tank for extra fittings are difficult. I suggest instead, to add a return fitting to the fill spout, as that CAN be removed with the engine in place. In the same vein, SCCA and other competition groups now specify all fuel filters be on the suction side of all pumps but especially cars with electric pumps.Then, if the filter body cracks or breaks, its not under pressure. I'm reminded of an incident with a Porsche at a local autocross, that cracked a fuel filter and caught on fire during a run. It was apparently wired like yours and-re-ignited 3 times while the oblivious owner tried to re-start it; someone finally opened the hood & ripped the battery cable off, killing the engine fire for good. Scary stuff- he hadn't noticed he was on fire!