Update 3/1/2022: This issue has been resolved. Spill valve was responsible for 60psi drops and PRV was responsible for for fuel pressure never exceeding ~1700psi.
Year/Make/Model: 2008 Mazdaspeed3
Mileage: 160K chassis / <1K motor
Location: AZ
Concern: Fuel pressure drops to in-tank pump...
The stock mazda fuel wire appears to be 14-12awg it might be less but it is hard to tell. I was having some strange lean issues and this seemed to help. I re-wired the pump with a dedicated 10awg wire and a relay. The hellcat pump can def pull more amps than the stock stuff is rated for. I am...