DPP/FASS - Pump only, Finally installed

[KFLG]

Erratic idle when coming to a stop with an 04. 5 is not a FASS problem.

I had that before I ever installed the FASS on my 04. 5

I didn't have a problem before I installed the FASS pump, my engine is basically stock except for AFE filter, Magnaflo muffler and Volumizer box. I don't have fuel pressure gage so can't really tell anything. but I think the 150 GPH pump is sucking the stock pickup in the tank dry as it makes a lot of noise. I am going to change it out for the 95 GPH and see what happens. DPP put out a bulletin to it's dealers to install the 95 on all but the extremely modified engines.

 

[Murle]

Got my "Mini FASS" in today. That is what I call it. Got the 95GPH unit. I have been running the regular FASS, the one with the filters for quite sometime now and love it. I just bought a 2000 Flat bed 1 ton for the farm and I got it fairly cheap because it would have a dead pedle every now and then. Checked the fuel pressure even though it look like it had a fairly new looking factory LP on it... . 2. 5 lbs to 0 pressure. Did not have to think what kind of unit I was getting. Nothing but a FASS. So I decided to get the cheaper FASS and use the factory filter. This truck is not bombed and will just be the farm truck. This new "mini FASS is just the ticket. Good instructions. Good quality mounting bracket. I don't think there is anyway that Brad at DDP can improve on this unit. But If there is a way I'm sure Brad will find away. My Hat is off to the people at DDP. Good workmanship and good product... . Anyone that is still running the factory LP is just looking for trouble...

 

[CLAYTON]

Does the FASS come with bigger fuel lines with it? On a 1-5 scale 1 being the easiest and 5 being the hardest. . how would you rate the install?

 

[Tomeygun]

Does the FASS come with bigger fuel lines with it? On a 1-5 scale 1 being the easiest and 5 being the hardest. . how would you rate the install?

I would honestly rate it a 2 at the most... It is plug and play for the electronic part of it, and the rest is push-lock for the fuel line



Pretty easy IMO

 

[JaMan]

Wish I could say I loved mine, I do love the concept and design but... I'm on my 3rd FASS stand alone pump and this one only has 12psi at idle and 7psi at WOT. I had that with my factory original LP and Wildcat max flow lines. And I can't get Brad to talk to me about it. I'm not slaging him I'm just getting frustrated...



Hope I'm alone on this...



Jared

 

[rbattelle]

You're so right Ryan ! The fuel line came right off, but the return was turned to where you couldn't get your fingers on one of the tabs. I would have given$100 for that tool at that time.



Fireman

I bought the Summit fuel line disconnect tool and it already saved my neighbor's life! It is a very high quality kit and makes "quick disconnect" lines very easy to work on with no pain and frustration. I recommend it to anyone planning on any fuel system modifications.



[Disclaimer - I have not yet had need to use the tool on my truck, so I'm just assuming it will be equally useful on it as it is on other quick disconnects. ]



Kry226 - I had the same question about high pressures damaging the CP-3. I don't think there's a problem, though, as there are a number of people on here running 20psi (or more) to the CP-3 without experiencing any problems. I built a pump controller circuit for my aftermarket pump, so I can change pressures at will. Adjusting pressure at idle has absolutely no effect on the engine whatsoever. The Fuel Control Actuator mounted on the back side of the CP-3 automatically determines how much flow to send to the CP-3 for cooling and engine supply, then dumps the remaining fuel to the return line.



I have also turned on my pump and run up to 15 psi with the key out of the ignition without causing any damage to anything (I had some fear that if the FCA was not energized then pressure at the inlet to the CP-3 could damage it).



I do think (and this is just opinion) that the flow rate to the CP-3 should be regulated to prevent too much quantity. First, a pump with a very high flow rate can cause cavitation problems when used with the stock pickup assembly. This will significantly shorten the life of the pump. Second, the return line to the tank is an 8mm (0. 315") OD stainless steel line, so it's not that large. Exceeding it's capacity might cause some sort of harm - probably directed at the FCA (note the supply line is 3/8" OD).



I am now running an Aeromotive 11203 pump which (as I mentioned) has a pump controller circuit since the pump can flow around 150 GPH at free flow conditions. I really think that for stock trucks 95 - 105 GPH is about maximum you want to flow to keep things "reasonable" (factory minimum spec on 2003 trucks is 38 GPH). The 95 GPH FASS pump, then, is perhaps an ideal choice (except the price ). Obviously, power enhancements may dictate a higher capacity pump. I really think the key is balancing the engine demand and the return line capacity.



-Ryan