FASS or Air Dog?????

Guys I was incorrect, I talked with Charlie and he said that was bad info. Its good up to 70 PSI with the new pumps, so Shim away. He also apologized for the directions and said they are in the process of making new instructions, complete with color photo's.

i dont understand why anything about 70psi is even a factor. 70psi is the max fuel pressure to run. 55 is optimum. 60-65 is better. $.02

Garrett
 
Does anyone sell a kit to delete my regulator?

the thing is that if you already have a regulated return fuel system on your truck, there is NO reason to go and start buying or modding it just to get rid of your regulator and go to a "flow control valve" ...

this would be an option to consider INSTEAD of having to pay for a regulated return kit and still accomplishing what needs to be accomplished..

keep in mind that the aeromotive regulator is a quality unit, and it IS a "flow control valve" if you think about it.. if you've already spent the money on it, then by all means leave it there, and enjoy it. it's got a gauge port on it and it is actually the best way to "control flow" if you understand the exact path the fuel must take. trust me i messed around with my FASS back and forth for months getting it dialed in to work with my ITP kit, and spending much time on the phone with DAN...

the regulator should be adjusted so that it provides enough backpressure between the FASS and the aeromotive to open the "bypass" valve inside the FASS. this is the second fuel output that goes directly back into the fuel tank and carries the 'aerated fuel'... you can put your ear to the fuel filler neck with the cap off to hear when this starts bypassing.. then you simply check the fuel pressure gauge on the ITP kit (or your own gauge setup) and increase fuel pressure until it reaches the level that you desire.

i have mine set at 62psi.. you don't want to crank the regulator so tight that the pressure is enough to stop flowing thru the regulator alltogether because now you are relying solely on the max output of the FASS to be your fuel pressure, and you are basically undoing all the hard work you did by installing a regulated return kit in the first place, because if fuel is not flowing thru the regulator and back to the tank, you have basically just gone back to a 'dead head' fuel system and you could have had that for free, it comes with the truck.. :)

make sure the bypass spring in the FASS is the stronger one or you won't have enough PSI at the motor , but start w/the regulator backed off all the way. slowly tighten it until you hear the FASS start bypassing to the tank.
then you adjust to desired pressure w/out shutting off flow . it is easy to tell if you turn it too high, because you can actually hear the fuel stop flowing thru the regulator when it's too tight.. simply back it off until you hear fuel flowing again. then double check to make sure that the fass is still bypassing.
as long as both the fass AND the regulator are returning fuel to the tank, then you are in business.

word of advice, do NOT overtighten the regulator, it is possible to turn it too tight, and this will bind up or damage the spring inside, and even after you back it off, you will not be able to accurately control the fuel pressure anymore. i learned this from dan.

hope this helps..
 
Im glad you brought the story to our attention. With an AirDog you wouldnt have had to worry about messing with all that!

well i would now like to eat my words....

although what i posted earlier was most likely the truth, and i had never had to prime my fass before, it ran low on me 2 nights ago on the way to work and sucked air... lost the prime.

i shut it off, had my old lady bring me some diesel and i filled the truck, then i turned they key.. NO FUEL PRESSURE...

so i simply removed the filters are filled them with fuel.. turned the key.
fuel pressure jumped up to 62psi for half a second and immediately dropped again..
did this several times with both filters, same thing..

so remembering this thread ( and darn glad i did, because it saved my ass) i had her turn on the key and while the pump was running i loosened the first filter (water separator) and nothing happened. so i tightened it back up and started to loosen the next one (the long one) once it was loosened it started shooting foam and fuel everywhere between the filter and the pump,
BUT I'LL BE A SON OF A GUN IF IT STARTED BUILDING PRESSURE WHILE IT WAS SPEWING EVERYWHERE ! ! !
tightened it back up, cleaned off and drove to work...
 
Couldn’t have said it any better myself.....

You can make the regulators work...but my issue with them is they are more of a "Pop off" style. Meaning they will return fuel as soon as a certain pressure is obtained. The flow control valve is not this way. It will flow a constant amt of fuel no matter what the inlet pressure is. Regulators can be made to work...its just more tricky to do so since you are tap dancing on sweet spot the size of a knive edge.
 
I've met Brad Eckstam, even got to wrench a little bit on his truck, and I found him to be a great guy.
After reading Charlie Esckstam's post, I gotta say that he had a good role model that allowed him to turn into a great guy.
Charlie, I know that most families don't have to deal with the kind of drama yours has to. I want to commend you for a wonderfully unbiased post stating the facts.
Also, congratulations on what seems to be a successful transplant. Best of luck in all you do business-wise as well as in life.
 
Couldn’t have said it any better myself.....

You can make the regulators work...but my issue with them is they are more of a "Pop off" style. Meaning they will return fuel as soon as a certain pressure is obtained. The flow control valve is not this way. It will flow a constant amt of fuel no matter what the inlet pressure is. Regulators can be made to work...its just more tricky to do so since you are tap dancing on sweet spot the size of a knive edge.

oh and dan, now that i have my truck back and some time to wrench on it again, i will be swapping out the FASS motor and getting that other back to you as soon as i can bro..

thanks again for everything you've done to help get my truck where it is today !! how about you kick me down with some stickers and i'll run 'em so people will know you helped make it possible for them to see my taillights ! !
 
Dan, i have the FASS 95/150 system along with LIPD's regulated return system with the aeromotive regulator set at 60psi. I plan on upgrading to the 150/180 system to eliminate the factory pump and engine filter housing so that i can go straight to the heads with a -8 feedline to two -6 lines. Now, when i upgrade to the bigger pump, and after i install it, should i turn the pressure down on the aeromotive regulator before i start it or key on, then gradually turn it up to the desired psi(60), or can i just leave it at 60 like how i have it now and be fine? And when setting the psi on the regulator, is it to be done with key on engine off, or key on engine running at idle?
 
Dan, i have the FASS 95/150 system along with LIPD's regulated return system with the aeromotive regulator set at 60psi. I plan on upgrading to the 150/180 system to eliminate the factory pump and engine filter housing so that i can go straight to the heads with a -8 feedline to two -6 lines. Now, when i upgrade to the bigger pump, and after i install it, should i turn the pressure down on the aeromotive regulator before i start it or key on, then gradually turn it up to the desired psi(60), or can i just leave it at 60 like how i have it now and be fine? And when setting the psi on the regulator, is it to be done with key on engine off, or key on engine running at idle?

I would start low so you can tune the regulator to our system as SinCityDiesel posted up above. Don't think there will be that much differance with the truck running or not. Just confirm return flow for both and you should be good.....
 
Wouldn't it be just as easy to crack the return line at the aeromotive regulator to see if it's returning fuel to the tank and doing it's job after pressure is set. Just thinking it might be kinda hard to hear if fuel is actually being returned to the tank by trying to listen to the regulator. Thought i'td be easy to just crack the return line on the aeromotive regulator and see if fuel spray's out when loosening.
 
Wouldn't it be just as easy to crack the return line at the aeromotive regulator to see if it's returning fuel to the tank and doing it's job after pressure is set. Just thinking it might be kinda hard to hear if fuel is actually being returned to the tank by trying to listen to the regulator. Thought i'td be easy to just crack the return line on the aeromotive regulator and see if fuel spray's out when loosening.

dude, trust us..
turn the regulator down first.. because just because it's set on 60psi w/your current pump and lines does not mean that when you change pumps and eliminate restrictions the reading will still be 60... it might, it might not.

and there is no need to crack the lines.. TRUST ME.. when you start turning that adjustment to bring the pressure up just watch the gauge to make sure you are good.. once there, go and double check with your ear to make sure the fass bypass is dumping into the filler neck..
it's easy to hear..

as far as shutting off the flow at the regulator when you turn it far enough: YOU WILL DEFINITELY HEAR THE FUEL STOP FLOWING, AND WHEN YOU BACK IT OFF, YOU WILL HEAR IT FLOW AGAIN, THERE WILL BE NO DOUBT IN YOUR MIND.
hope this helps.
 
hey where can i locally buy more filters for my fass at ??
my secondary one has a bad oring now because when i had to loosen it to prime it, the fuel pressure blew the oring to the outside and it's causing it to leak a little driving me nuts ! ! !
does anyone have the cross reference part numbers so i can go get one at napa or something ?
 
I can get mine at carquest. I will be able to give you carquest part #'s for the fuel filter and water seperater when i get home
 
We have been having the competitiors customers calling and asking for filters cause they couldnt get ahold of them. Once they did get ahold of them they were still told to call us. Nice work
 
hey where can i locally buy more filters for my fass at ??
my secondary one has a bad oring now because when i had to loosen it to prime it, the fuel pressure blew the oring to the outside and it's causing it to leak a little driving me nuts ! ! !
does anyone have the cross reference part numbers so i can go get one at napa or something ?

Here are some cross numbers if you have a 150 Series pump......

2-T.....rather than peeing in the guys Apple Jacks, why don't you help the man out with some useful info that can resolve his issue? Or are you guys just looking for every little dig you can get on us? $.02
 
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Im glad you brought the story to our attention. With an AirDog you wouldnt have had to worry about messing with all that!

Not sure about this. Today, I bypassed my stock pump, and ran straight from the Airdog to the fuel bowl. I then ran through the regulator, and back to the tank. Now when I start it, It shows 60 PSI, then when I drive it, it will hold 60 for a few seconds, then when I stop, it falls straight to zero, until it catches prime again. Or did I do something wrong? :bang:bang
 
This gets more confusing every post. I guess it boils down to personal preference and loyalty.
 
I shimmed the crap out of it, and now I am at 70 PSI. It took a while, but it seems to now be back to normal as far as fuel pressure. It only drops a touch.
 
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