Regulate Fuel Return?

[bulldog84]

Hey guys, its been a while since I posted last. I'm looking for my next upgrade. I've got a couple questions that I need help with. I was thinking of doing a regulate fuel return but wasn't for sure which one. Also, if I got a Airdog Fuel pump would that not be a regulated fuel return or should I get the regulated return seperate from the upgraded fuel pump? One more question, is it useless to get a regulated return or upgrade fuel pump without aftermarket injectors? Thanks ahead of time.

[jrtcbmw]

subscribing as well. because im in the same boat.

I dont think it will hurt to have the RFR and Air dogg. better way to keep those expensive injectors healthy, and then if you do plan to upgrade, your fuel system is already set.

[TooMuch03]

The big deal about an Airdog is that is removes air from the fuel system and has a better filter and water separator than the stock fuel pump. The Airdog II has a regulator built into it, so aregulated return is not completely necessary, but it will not hurt. I personally am a big regulated return fan. I think it is the best way to insure that allof your injectors have adequate fuel pressure, and if there i any air in the lines, it allows it to bypass the injectors and go down the reutrn system. The OEM system is a dead end and cannot do that. Even with stock injectors, the OEM Fuel pressure regulator is known to lose pressure over time, especially at WOT, hence the blue spring upgrade.

[colinmitchell111]

Will running an AD and a reg return eliminate the need for the upper fuel filter housing? I plan on running a remote oil cooler and would like the whole filter housing gone.