fass/air dog whats the 411

[twiztid1981]

ok so heres the qustion, im thinkin about the fass or air dog setup but before i drop coin on it i was wonderin what i can expect, will this help out my fuel economy, with fuel now at 3.89 im all about better millage so give me some info oh mighty gurus of the allmighty 6.0

[PRCA Bullfighter]

There isn't much difference from what I know between the two other than the Air Dog is more compact, has a larger fuel line and costs less. I hear they increase economy and hope so as I'm looking at getting one myself.

[Lord Tauk]

The units everyone usually buys, The air dog is just a high volume low pressure helper pump that feeds to the main pump, whichever that may be stock or aftermarket. The high pressure FASS replaces the stock pump in it's own location and has water sep. and a filter just like the Air dog.

You probably couldn't get the truck to run on just the Air dog.

[PRCA Bullfighter]

The AD also replaces the stock fuel pump so you can just run it .

[06TWO50Diesel]

03F250Stroke is planning on installing his AirDog pump tomorrow some time. I'll try and get him on here with results.
Myself- I went with FASS 150/180 because it's a name you see on all the fastest trucks and everywhere else in the diesel world. I don't question their reputation! AirDog is actually (for some history here) the father of the guy (son) who created FASS. They had disputes with each other, broke away, and now we have 2 companies making a comparable pump. Haven't seen enough about AirDog to really give info on it, but it seems to be somewhat the same, but a more stripped down FASS pump. I dunno about the gains and MPG on it. On my FASS though, the pump runs great, seeing an increase in MPG by about 1-2mpg on Innovative's Xtreme Street tune and daily driving, and also the power gains are noticeable as well! Great piece for anyone running a tuner, because the tuner is asking a lot from your stock pump.
The build quality of the FASS looks more stout and as I said, you don't see airdog stickers on these big power trucks, you see FASS. So I want to go with what's been running strong and been trusted by some of the best out :nate:

[Bassn_07]

Originally Posted by PRCA Bullfighter

The AD also replaces the stock fuel pump so you can just run it .

I just pulled this up from ITP:

Air Dog Provides HIGH VOLUME / LOW PRESSURE fuel supply (10-20psi depending on application) to the stock or aftermarket transfer pump, eliminating cavitation and stabilizing fuel flow and pressure to the entire system

It seems that it works with the stock fuel pump but that's just what I read. I'm also in that same boat on which one to buy - Fass 150/180 or AD.

[Mikes7.3]

The Air Dog operates at 10- 12 psi it is not intended to supply the fuel by itself. It removes the air entrained in your fuel sloshing around in your tank, so when it leaves the Air Dog you have pure fuel, provides better burn for improved performance and economy. I can't tell you how much difference it makes by itself because I installed several other mods at the same time. I will say that after installing injectors and reg fuel system and Air Dog my mileage improved from 10-11 to 14-15 and after my right foot settles down I think it will be even better.

[shu873]

Originally Posted by PRCA Bullfighter

The AD also replaces the stock fuel pump so you can just run it .

I've got the airdog 150 installed. I'm very happy with it, but it is a "pusher" pump to the factory pump. It will still flow all the fuel I'll ever need, and is a great mod in addition to my regulated return.

[Bassn_07]

Originally Posted by 06TWO50Diesel

03F250Stroke is planning on installing his AirDog pump tomorrow some time. I'll try and get him on here with results.
Myself- I went with FASS 150/180 because it's a name you see on all the fastest trucks and everywhere else in the diesel world. I don't question their reputation! AirDog is actually (for some history here) the father of the guy (son) who created FASS. They had disputes with each other, broke away, and now we have 2 companies making a comparable pump. Haven't seen enough about AirDog to really give info on it, but it seems to be somewhat the same, but a more stripped down FASS pump. I dunno about the gains and MPG on it. On my FASS though, the pump runs great, seeing an increase in MPG by about 1-2mpg on Innovative's Xtreme Street tune and daily driving, and also the power gains are noticeable as well! Great piece for anyone running a tuner, because the tuner is asking a lot from your stock pump.
The build quality of the FASS looks more stout and as I said, you don't see airdog stickers on these big power trucks, you see FASS. So I want to go with what's been running strong and been trusted by some of the best out :nate:

Good info.

What have you done to your truck to run in the mid 13's?

[PRCA Bullfighter]

I guess to clearer on my Dodge it replaces my in tank fuel pump and plumbs directy to the CP3. Either way it provides the same basic service as the FASS.