fass vs air dog

TooLoud

New member
Joined
Nov 21, 2007
Messages
11
seems like a lot of people are using the fass systems, i have seen a lot of advertising for air dog systems which look to be about half the cost of the same fass system. is anyone using air dog or have any input on quality?

also what would the symptoms of getting air in the fuel, i have a bd high volume relocation pump right now, that keeps up with volume but i do have a slight hesitation every now and again under wot. any input would be appreciated, thanks.
 
I installed an AirDog FP-150 last week. it is alot quieter then the FASS system was. It also installed very easy with the brackets they sent with it. I know that the prices are going to start going up, I believe they said April or May is when the special pricing will end.

Jay
 
Fuel Preporator (AirDog) was the original aftermarket air seperation pump. The owners name is Charlie Ekstram. His son split way and came out with FASS.
The reason why you hear more FASS users, is because Charlie (AirDog) had kidney failure, sold the company, and has recently bought it back.

I have read that AirDog has a better air/fuel seperation design than FASS. AirDog had it patented a long time ago, so FASS designed their own.
I have also read that AirDog also uses a better pump.
I do know that AirDogs system is smaller and quiter than FASS.

I went with AirDog, because of these things I have read and because it was cheaper.
 
I have a FASS 150, but regardless of which route you go, they're both good systems. I went with FASS just because I hadn't heard of Airdog back in 2003 when I installed it. Plus, FASS is only 45 miles from my house, so being local is a plus in my opinion. Though, if Airdog is owned by a family member, they are probably in Missouri too. I don't think you can go wrong with either one.
 
I would not install another AD.
The first (and only) one we have done at the shop included having the RIGHT wire harness and bracketry overnighted so we could get the truck out the door on time. The 1/2'' line is way over kill and not needed and harder to install. The brackets did not want to be mounted were the directions said and the whole system seemed a little cheap and cheesy.
I know this was probly just a one time mishap, but I have installed several FASS systems with alot more ease.
And I don't want to turn this thread ugly. Just telling my first experience with AD.

J.D.
 
A quick question that' sorta off topic. Would I need to add one of the two to my truck up to around 500 - 600hp. I have a Carter or pusher pump and I was wondering if I would need more.
 
Jcummins said:
I would not install another AD.
The first (and only) one we have done at the shop included having the RIGHT wire harness and bracketry overnighted so we could get the truck out the door on time. The 1/2'' line is way over kill and not needed and harder to install. The brackets did not want to be mounted were the directions said and the whole system seemed a little cheap and cheesy.
I know this was probly just a one time mishap, but I have installed several FASS systems with alot more ease.
And I don't want to turn this thread ugly. Just telling my first experience with AD.

J.D.

How long ago was the install?

When the original owner Charlie had the kidney failure and sold it, I heard the new owner didnt have the "know how", and the company suffered from mismatched parts and bad customer service.

I had a great experience with the install. Everything fit good and how can you actually complain about the 1/2" hose, overkill is great when it comes to fuel delivery.:bang
 
This was last Tuesday.
I know I am biased toward the FASS. If I had as much expierience with AD as I do with FASS maybe it wouldn't be so bad.
Their customer service wasn't bad. Just first impressions are everything in this biz and mine was bad.
Say what you will, I'm sticken with FASS.
1/2'' hose wouldn't be needed ever on a VP truck. The fittings are all bigger and that makes install a pain.

00 black ram: YES your going to loose your VP very fast without an HPFP.
 
Last edited:
Volume is always a good thing, you don't need high pressure if you have high volume.....And with some of the VP trucks coming out, I wouldn't say 1/2" isn't needed.....
 
TooLoud said:
i guess i should have searched, i would never have guessed the subject was so heated!!!
I would have never guessed it either Wow!! They are both great pumps! I've run them both, had a Fass [pump only] for 3 years until recently the motor got so loud that I was concerned it was going to die & bought a Airdog. Overall, I like the Airdog [My opinion, nothing against Fass] because the motor is so quiet that I have to listen close to hear it run. My Fass 150 would pull pressures down to 10psi although idle pressure was 20psi. The Airdog stays at 16psi idle, 14psi minimum & the engine idles smoother with this system. You really can't go wrong with either system, both great units, it all comes down to price for me. I found a Airdog dealer who had the 150 system for $450 special.
 
ok so here is my next question, which size airdog 100 or 150. i am going to get two one for my 02' ctd auto that only has a juice and one for the 01' truck in my sig?
 
TooLoud said:
ok so here is my next question, which size airdog 100 or 150. i am going to get two one for my 02' ctd auto that only has a juice and one for the 01' truck in my sig?
I like overkill when it comes to fuel systems. If you are only going to have a Edge on the 02 & nothing more, the 100 is more than enough. For your 01, I would get the 150.
 
I would get the 150 for both....than if you have an issue with one, you know you have an exact spare if you're in a pinch.
 
TooLoud said:
also what would the symptoms of getting air in the fuel, i have a bd high volume relocation pump right now, that keeps up with volume but i do have a slight hesitation every now and again under wot. any input would be appreciated, thanks.

IS fp dropping hard? The biggest restriction in the fuel system is the banjo bolts and I'm thinking that kit you're running doesn't replace them. If you've got a 1/2 decent pump, some lines and fittings might be all you need. Send me a pm if you're near frednecksburg, I might be able to help you out.
 
Heres the contact info for FASS and Air Dog...

FASS: www.dieselpp.com -or- www.fassride.com

There isnt a phone number posted on there site

Air Dog: PureFlow Technologies, Inc.
5400 Business 50 West, Ste. 8
Jefferson City, MO 65109
Phone: 573-635-0555
Toll Free: 877-463-4373
Fax: 573-635-0778

Take the time to do your research and make an informed decision
 
I've been using FASS for a long time now, but recently got hooked up with airdog. I like the airdog hands down. The FASS is a very nice unit and does what its supposed to do, but the Airdog is smaller, quieter and installs a lot easier(or I thought so anyway). It does come with bigger lines and fittings, which had no effect for me on installation. One is as easy as the other. And the price is almost half. Either kit will work great for you. But the price, quietness and size of unit and hose, its really a no brainer.
 
For me it seems that so many people use FASS because their friends do and that's really their only reason, not all, but most. I wouldn't be surprised if Airdog's become more prevalant here in the near future. I just ordered an Airdog, got an incredible deal, thanks cummins724. From my research its as good if not better and it's a lot less expensive.
 
Found this post by Air Dog himself...

Information For Those Who Care!

The Fuel Preporator has been the leader in fuel air separation technology since the first sale of the first hand made product on March 15, 1993. The first commercially manufactured embodiment that was made and sold in 1994 had the fuel air separation features of todays model except for the 'flow dividers'. This was the feature that enhanced the air separation that allowed the major reduction in size.

The fass, as seen at the 2003 Mid America Truck Show, has only the secondary air separation features of the Fuel Preporator as shown in the October 1996 LandLine article.

This Fuel Preporator feature that is used by the fass is for venting air from inside of the filter element during filter changes and bubbles that may randomly pass through the filter. It is described in the Fuel Preporator patent 5,746,184 Abstract as "Bubbles passing through element 94 are swept upwardly for discharge through the outlet side discharge port (428) to ensure a substantially gas and vapor-free supply of fuel to the engine". This function is totally explained in detail in the "Description of the Preferred Embodiments" of the same patent in column 9, lines 54 through 65. This technology preceeds the fass by 9 years, and is only a part of the fuel air separation technology of the Fuel Preporator.

The Fuel Preporator also has a primary gas exit port. When Brad Ekstam was asked about the primary gas exit port of the Fuel Preporator on February 16, 2007, "So just so we're clear, you do agree then that the Fuel Preporator without the air bleed port would operate in the same way as the Fass.." Brad said "I am saying that you would be taking the air out the same way we do". Has he forgotten the fass is 9 years to late to be original.

As for poor customer service "from way back", give me one name of a customer upset with customer service before the company was sold Feb. 2005 due to my kidney failure and health issues or after it was bought back last March after I received a kidney transplant! Although, it could have been "way back" as BAP stated, during the period that Brad sold Fuel Preporators from 1995 through 2002, for my Licensees. If None is nothing, then customer service "second to none" must be really poor, Is that when you meant, BAP?

As for the name changes, the Fuel Preporator has always been the Fuel Preporator, the AirDog has always been the AirDog, The Raptor fuel pump has always been the Raptor, the SuperDog 250 has always been the SuperDog 250. None of these are knock offs using other's technology! Althought the company name did change from Fuel Preporator International to Ekstam WorldWide to go from a Missouri corp to a Delaware corp for tax purposes and PureFlow Technologies due to the change of ownership.

I hope this may clear a few issues. Additionally, we have a full comparison of the patents and products that will show who is original and who is not....coming soon to our website!

Product loyalty is great, only be sure that when you make statements your are correct and not just making slanderous statements without merit, they show your true qualities as a person. One other thing, if the poor customer service was during the period of February 1st, 2005 through February 31st, 2007, I totally agree with you about the poor customer service. That was during the period that I had no control over the company.

We are dedicated to providing original and leading edge technology (just read the University and laboratory studies and test results) and outstanding customer service (just read the AirDog threads).

Charlie Ekstam
 
Back
Top