Engine/Transmission (1998.5 - 2002) fass or air dog?

[HTRDHLR]

I cant stand this any more I need to fix the problem of the lift pumps and I can not rely on DC anymore. Which product should I buy and where should I buy it from?

 

[DLBurns]

I have the FASS system and have been running it for almost a year now with "0" problems. Holds rock steady at 15PSI... Got mine from Blair who ordered it from Piers Diesel.

 

[Augie]

Rasp

I cant stand this any more I need to fix the problem of the lift pumps and I can not rely on DC anymore. Which product should I buy and where should I buy it from?

When I suffered LP Problems on my '99 I FASS'd when the product was just out. On my current 24V I wanted to go mechanical and RASP'd it. It is a very good setup and I am very happy with it. Talk to Olee http://www.powerbypoole.com/fuelpumps.html

 

[Jetpilot]

My vote is for the Airdog... ...



Doug

 

[Jerry1]

I have the AirDog and can't say enough about it. My truck idles smoother, runs quieter and seems to have a little more snap in its step. It also elimated a high speed cavating noise I assume was coming from the old lift pump. The AirDog was built to fit our trucks where the FASS is a knockoff of one to fit larger rigs. The quality and attention to detail is the best I have seen in a long time and their support is the best I have experenced in quite a while also. They do cost just a little more than the FASS but I think it is money well spent especially if you are bombed or are going to bomb in the near future like me. I also believe the real benefit especially for us 3rd gen owners is the 3 micron filtering that is going to save our injectors from clogging. I have had THREE injectors replaced because of "injector knock" and I believe it is from dirt getting thru the factory 10 micron filter. Now that the AirDog is in it is going to be interesting to see if any more fail. Just my . 02 and Merry Christmas to ya'll

 

[bdyal]

FASS or AIR DOG

I have Semi trucks with each system in them. The Air dog is made under the original patents by the Father who made the fuel preporator and the FASS is made by the son who later bought out his dad only to have Dad come back out of retirement with the air dog. Both work the same basically, both last as long, the air dog is just a downsized fuel preporator, Oo. the unit that started this whole line of performance add on. Go with price and convenience of filter location...

 

[GKinney]

Fass

My advice to anyone upgrading to the after market system, if you are going all out... ... take the extra time and install a larger suction line in the tank. I think 90% of the problems with the stock junk (lp's) is right in the sub par fuel modules. I installed a 1/2" pipe in my tank a few months ago..... you would not believe the difference in the sound of the fass. You can barely hear it run now, before you could hear it purging trying to suck enough fuel to keep it pumping properly. Well that is my $. 02... ... . think about it seriously. I really like my fass now..... had it almost a year. I just came home from a 25mi. drive at -5*F... ... ... fass just purring like a kitten... . thats with no heat to it either.

 

[Hemiless]

?? on the two

Do either of the systems the Fass or the AirDog use an electric heater? I know the first fass setup I looked at used a coolant heater and frankly I don't want to run a pair of coolant lines all the way back to the bed. I've checked both website's but haven't found the answer.

 

[RonA]

If you like red and white buy the FASS, If you prefer Blue and white Buy the air dog. That is the biggest difference. Both are excellent.

 

[GKinney]

heater

Well I know the Fass doesn't have an electric heater option... ..... and myself I don't want to run coolant lines either. I am going to try it this winter to see if I have problems... if I do. . well then I guess I will be runnin' some hoses. I think the amount of fuel that the fass circulates back to the tank all the time will keep things thawed..... I hope. I am using Stanadyne performance formula too..... seems to be working great so far.

 

[KBalzuweit]

FASS. Awesome product. Well built. Better warranty. Less cost. Need to say more???

 

[Roger rodbolt]

I've tried both..............the same???????????????

My advice to anyone upgrading to the after market system, if you are going all out... ... take the extra time and install a larger suction line in the tank. I think 90% of the problems with the stock junk (lp's) is right in the sub par fuel modules. I installed a 1/2" pipe in my tank a few months ago..... you would not believe the difference in the sound of the fass. QUOTE]



GKinney,

I'm certain that your Fass is quieter with the 1/2" pipe (I've tested it too) but the AirDog does NOT need the tank modification. The AirDog is engineered to work with the stock fuel tank/module. I've done quite a bit of research and a stand pipe/tank mod without a properly working air separation system will do more harm then good to your injection pump. Again, the AirDog is designed to work with the stock fuel tank and will flow properly and quietly stock or even with the "baddest" hotrod VP-44 out there.



Sorry RonA, there has never been a blue AirDog, you maybe confused with a larger unit not built for pickups. I'm amazed at the knowledge folks here on TDR possess when it comes to tires, clutches, torque convertors, injectors and electronic fueling enhancements. Tires are tires, black or black with white, who cares if they are 38" or 33" Michelin or Brandsmart? A orange Centerforce clutch should be the same as a nice red McCleod or Southbend but it costs less. Torque convertors? want purple, yellow, black or natural billet? I can get you a $300. 00 set of common rail injectors (exchange) but some guys on the left coast want $1200. 00! Even I know to flow more they just make the holes bigger, gee what can that cost? Banks, Edge, TST, Blue Chip all use circuit boards to enhance fueling so just pick the best color.



Whew, off my rant, but seriously, here a few differences. The AirDog is much more compact unit, different tire size so to speak. It flows different, it has a high pressure bypass (built in) to protect your fuel injection pump and it uses a diesel fuel filter. The Fass was copied from our design for Class 8 trucks, it's larger, flows different, has no internal bypass, uses a hydraulic filter for the fuel filter. The AirDog has primary and secondary air-separation, the Fass only secondary.



Anyone who has held an AirDog in one hand and the Fass in the other can see huge differences in construction. The Fass pump body is made in sections (slices) and uses gaskets to seal diesel fuel... ..... the AirDog has a one piece CNC machined body-no diesel gasket. The Fass has a band clamp (turbo clamp) and angle bracket to support (hold alignment) of the critical motor to pump alignment, the AirDog motor is machine bored into the pump body for proper alignment... . forever. This costs more... The Fass is red, the AirDog is black. When installed on your CTD you can see the Fass filters hanging below the bed or cab, not so with the AirDog. You must shutdown the engine of your Fass equipped truck to refuel, not so with the AirDog. The Fass furnishes a complete set of fittings and fuel lines, 3/8". The AirDog comes complete with 1/2" fuel lines/fittings.



It great that we as consumers have choices and I am very glad that the Fass has a great following, it was the first true diesel rated lift pump marketed to light trucks. I am also very concerned when I see misinformation about products... . saying they are the same, one just costs more. I owned and managed a repair shop and also sold hundreds of tires a year. I never told my customers that a $589. 00 set of Michelin built off branded tires were the same as a $679. 00 set of Michelin brand top of the line tire. They were not, two totally different tires with different rubber, tread pattern and strength. The warranty in no way showed the difference in performance or wear. Sorry for the long post. Larry

 

[jcarey]

Larry, thanks. That's the type of comparative info I've been looking for. I like your product.

 

[tajensen]

Larry, thanks for the informative reply. A minute ago I was simply browsing the forums, now I'm trying to work roughly $700 into my budget. Thanks a lot LOL



-Tim

 

[GIT-R-DONE]

HTRDHLR,

check out: http://www.dieselpp.com/ and at the top, click on the "New Pump". I think this is a pump that will replace your lift pump. You install it back by the tank, and use your existing filter system ( you dont loose the heater element of your stock filter ) and I believe it wires up to your existing wiring that you ad for your lift pump. You would have to give them a call for the price as I dont know what it is, but I bet its cheaper than buying a new FASS system or airdog.

 

[DieselMinded]

Anbody have the fass pusher pump only????





the INSTALLATION MANUAL is only for 12v's

 

[Rockcrusher]

Do you have some instrutions for installing the 1/2 fuelline?

 

[Caveman]

I won't go back to the FASS. I have had 0 issues with the Airdog. Very high quality and no leaky connectors.

 

[abdiver]

Is there an Air Dog for the 2005 Dodge available ??



Thanks

 

[OTRPU]

What a delema, my guy sells FASS, but I like the sounds of the Air Dog better. Have seen a few guys coming back on him with their FASS with leaking problems. They fix um, no questions ask. . . but the point is. . . they have to fix um. Think I'll pop for the difference. JMHO



Cheers,

Steve J