How much performance gain do you really get with a Air Dog or FASS.... - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 21 Old 03-24-2011, 06:50 AM Thread Starter
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How much performance gain do you really get with a Air Dog or FASS....

i am trying to see if its worth getting... I just have the mods listed below but want more milage i only get 21 on the highway... but wanna try for more... i just wanted to know if it really helped out the spray pattern for the injector and all that jazz and just get you guys input...

2003 F-250 6.0 Powerstroke,
Torqueshift auto with Banks Torque Converter
NTX Diesel Performance EGR DELETE
SCT X3 W/ Custom Tunes from IDP...X-street (FAV)
4 inch straightpipe
EDGE Insight
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post #2 of 21 Old 03-24-2011, 07:44 AM
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Won't help that any. It's just to keep your injectors happy.
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post #3 of 21 Old 03-24-2011, 07:50 AM
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i got 26 highway on mine but i had the banks economind 6 posistion chip on it . wat the did was it limited how much fuel was being deliievered when i was steady drivin the same speed at the same rpm
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post #4 of 21 Old 03-28-2011, 02:29 PM
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I didn't see any gains or losses. I do have the piece of mind now that if I want to go with bigger injectors and a larger turbo my fuel delivery system will handle it. Oh, i got a cool AirDog sticker for my tool box also!

"If you are flammable and have legs you are never blocking a fire exit."
-Mitch Hedberg

06 F250 Eddie Bauer
Sinister EGR delete
Sinister Coolant bypass
Powermax Turbo
Airdog 2 Fuel System
5" Turbo back lost cats
gauge pod w/glowshift Guages
SCT TSX Tuned by GearHead SRL
6" Fabtech lift
325/50r22 Trail Grapplers
22x14 Fuel Hostage wheels
K&N intake
Harpooned fuel tank
Swamps 58V FICM + PHP Tune
ECM Rollback by PHP
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post #5 of 21 Old 11-11-2011, 05:18 AM
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I did it for the piece of mind of extra filtration

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post #6 of 21 Old 11-11-2011, 05:46 AM
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I didn't see any mpg gain with my AD2 but it does start easier with it. Main reason I put it on was like previously stated, injector piece of mind. I have an '05 which is worked hard all the time and unlike guys I know that run an OEM fuel system I have only had to replace one injector in the life of my truck and that was due to me running super low on fuel.

SCT, no studs...yet, Dual OEM intake air filter housings, Banks intercooler & intake elbow, Banks exhaust system, Windrunner ported intake manifold, Bullet Proof Diesel remote oil cooler & thermostat, AirDog2 (plus a couple spares), Power steering filter (Amsoil dual-bypass), MagTec deep ATF pan, Electric oil pre-lub pump, Dakota Digital gauges.
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post #7 of 21 Old 11-11-2011, 06:57 AM
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ONLY GET 21!!!!!!! dude you should be super happy with that! nothing wrong there i wish i could touch that number ill be happy if i can get to 18mpg's. but to answer the question the only thing i saw improvement in was a little throttle responce

2009 Ford F-350 FX4 4x4, H&S 300HD, MBRP 5" DP back exhaust, S&B intake, sinister egr delete, 4" BDS lift with fox shocks, 20x12 fuel nutz, 37" toyos, Custom painted headlights by me


SOLD: 2006 Ford F-350 4x4 King Ranch,ARP Head Studs and all the works
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post #8 of 21 Old 11-11-2011, 08:08 AM
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Same here. Throttle response improved. Slightly quieter, but not much. I can say whether I got better mpg because I bought it shortly after getting my tuner (fuel pressure was dropping drastically). Between tunes and airdog I gained about 1.5-2.0 mpg... which puts me at 16ish mpg down the hwy. Thanks for rubbing in your horrible mileage!!! lol. jk.

2006 F-250 CCLB Lariat FX4
4" Rancho Lift with Wireless Ride adjustment (came with truck)
35" Toyo A/T Tires on 20" Eagle Alloys
4.10 gears
Barder Stage 2 turbo
Ported intake manifold (Thanks odawg714)
ARP Head Studs
Bulletproof EGR Cooler
Tunes by Gearhead (SRLXX daily)
Dieselsite Coolant Filter Kit
ISSPRO gauges: Trans, EGT, Fuel Pressure
Airdog II 165
6.4l Banjo Bolts
PHP Original FICM tune
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post #9 of 21 Old 11-11-2011, 09:03 AM
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People claiming they get 21 or 26 are just using their dummy gauge in the cab. I bet if it is hand calculated it would be more on the 16-18 side. It just does not happen getting that type of MPG with our rigs.


2005 F-250 CC SB FX4 Lariat 6.0
SCT Live Wire Tunes By Quick Tricks
MRBP 5" Straight Pipe
Banks Intake
GlowShift 4 Pillar/4 Mirror Pod
Kenwood DNX8120/Diamond Audio System
10" Sky Jacker Lift W/Procomp Rezies
Amp Steps/TopGun Customz Dual Fox Stear
Yukon 4:56's
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post #10 of 21 Old 11-11-2011, 09:08 AM
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My Excursion doing 110 kph on cruise control flat ground and no trailer gives me 20 - 21 mpg (imperial gallon) figured out by hand. If I take over it drops to 16 - 18. My engine isn't stock but it is close to it.

SCT, no studs...yet, Dual OEM intake air filter housings, Banks intercooler & intake elbow, Banks exhaust system, Windrunner ported intake manifold, Bullet Proof Diesel remote oil cooler & thermostat, AirDog2 (plus a couple spares), Power steering filter (Amsoil dual-bypass), MagTec deep ATF pan, Electric oil pre-lub pump, Dakota Digital gauges.
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