GDP pump

[Snoxracer]

Am I trying to run fuel thru to many filters? On a hard run my lift pump (392 GDP) fuel presure will drop off pretty easy and then my rail presure drops. The reason I ask about the filter is do I have to much restriction? I have a small inline filter before the GDP, then I am running the stock filter and then a 2 micron just before the CP3.



Are the guys that are running big numbers not running a 2 micron filter? Should I remove the stock filter? Just some questions, and just thought that this pump would do better I guess.



Thanks

Snoxracer

 

[AMassaro]

I run 4 filters total with minimal pressure drop. What are you using as a bypass? Is it GDP's kit? The only way to keep consistant pressure is with a bypass regulator. I use Aeromotive's universal bypass (0-60psi) and I keep it at a tick above 20psi and it NEVER moves...

 

[Tomeygun]

and what pressure do you regulate down to at idle?

 

[ENafziger]

I'm running the exact same system that you are describing... the GDP 392 walbro with big line kit, small inline filter before the pump, stock filter, and then the 2 micron filter as well. Fuel pressure reads 20 psi at idle, 18 psi and WOT. --Eric

 

[Rams-n-Hogs]

I also have the same system. Inline filter, stock filter, 2-Micron filter, and I'm using an aeromotive regulator, set at 18. I've never seen less than 16 out of it. When was the last time the filters were changed?

 

[Snoxracer]

I have the idle presure set at 22psi, and have just replaced all filters. I am running a WIX 2 micron instead of Fleetguard. But my Fleetguard filters just came in.



Thanks



Snoxracer

 

[Spooled05]

I have the GDP comp. kit set at 28 psi with the 2 micron filter between the tank and pump and thats it. At wot with ppe hot all the way up pressure drops about 5-6 psi , hope this helps!

 

[TSPowell]

I'm using an aeromotive regulator, set at 18.

Do you have a part # for the regulator?

 

[oneshotkyle]

i have the gpd with big line kit and the dual filter set-up they offer. i deleted the stocker and run 16psi, 14psi is the lowest iv'e seen.

 

[Summit]

what size sticks are you using? im gonna guess big ones. on my truck with TST and 3's i had to run 2 walbro pumps and put the second one on a toggle so it dont run all the time and just use it as a pusher pump. works great. give richard a call and ask him about the 2 pump setup.