Join Date: Dec 2002
Location: Central Alabama, USA
Feedback Score: 0 reviews
Is the final filter needed?
I also have a fully regulated return system and a pre pump filter. I run a 2 micron filter in the Dahl pre - pump but could run a 10 or 30. Probably would if I lived in a very cold place. I leave the stock Raycor 2 micron filter element in the stock assembly as a final safety feature. I rarely change the final filter as the Dahl keeps the system clean, I change the Dahl element every 25k and drain the water cock whenever I see water in it, which is often. I don't have any fuel pressure problems run a regulated 65 PSI. My system uses the stock fuel and supply lines, full flow through the heads, regulating the system pressure to the engine with an adjustable regulator, stock regulator is blanked off return piping connected to the RR regulator return line.
I really like Calico5's description of his system, that would protect the system well from pump damage, however unlikely, just as well as keeping the stock filter and keep it in one compact area package.
So, to me a filter of some kind post pump filter makes sense while nothing is an unnecessary risk easily prevented.
2002 F250 7.3L PSD, bought new now at 226K miles, 4R100 Auto, Crew Cab, Short Bed, ITP Regulated Fuel Return system, ITP head to head SS oil cross over, Hutch in tank mod
Harpoon de tank vent, DIESELSITE Dahl 100 Pre-Pump Fuel Filter, DIESELSITE Return Fuel Line Cooler, DIESELSITE Engine Coolant Filter, DIESELSITE Auxilliary Transmission Cooler, DIESELSITE Gage Package, Pyro, Trans & Boost, Extreme Diesel AD injectors, Ford AIS Air Filter System, BTM straight through muffler, Moog Ball Joints, Rancho Shocks, Rotella ELC Coolant ,Stock Engine Program
Modified for I-Pod Connection
We b playing Scotland The Brave to Jimmy Hendrix
Last edited by Oneof6; 10-05-2018 at 08:05 PM.