Anyone Experience Fuel Pressure Drop From Low Fuel Rail Volume At WOT?

[Car Cannibal]

I've seen logs of this happening on other Platforms when the cars Injectors and Fuel needs get to be too much for say a 5/8th ID rail, the pressure starts to drop and IDC rapidly climbs.

I'm pretty sure my 4psi off at 31psi of boost is due to a rail volume issue on my 850cc Injectors now. I don't know what the rail ID is on my FIC but I'm curious if others have seen or experienced this?

FWIW, my fuel system is
DW Pump
Modded 1G Hanger with 3/8th hose (no hood with O-rings) and -8an outlet
-8 Fuel Line
Magnafuel -8 Stainless Filter
FIC Rail with -8's
FIC 850's
Aeromotive Reg with crazy 180 degree bend on the feed line in

 

[tenn-gsx]

I'm more inclined to think your issue Is probably a voltage drop at wot. Your fuel system is Definitely sufficient to support 850cc injectors. Do you know what your voltage is when your showing this pressure drop? That or a failing pump, leaking feed line at the pump, or clogged filter.

Also have you tested the regulator to see if it is actually functioning properly?