03-22-2008, 08:00 AM
alright, i but in an inline zex booster pump. part number is 82020, well cut the fuel line about midway up on the car, wired it to the hot wire to the factory fuel pump, turned the key on and fired it up and it pegged out my fp guage at 100+ psi. So i killed the car. I couldn't figure out why it was doing this. So i called zex and gave them the part number and told him the papers on this pump says it flows 265lph @ 40psi. He then tells me that it should only be 155lph and that is a new pump that will not work on the ls1's. So i disconnected the power too it but the pressure is still at 70 psi and it was only 60 before i put this pump in. The fp guage is a b&m electric gauge. Anybody got any ideas why the pressure is 70 no with the pump disconnected?