Intake Gains: REAL OR BULLSH**??? - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 40 Old 08-26-2011, 05:01 PM Thread Starter
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Intake Gains: REAL OR BULLSH**???

Since I've been on the forums I noticed everyone dogging aftermarket intakes and swearing by the stock units supporting 500hp. I haven't first-hand experienced an intake system on a 6.0 and really had no desire to but after seeing some bold claims I would like to hear what people have to say. My buddy SWEARS he picked up 3mpg with an intake which sounds exaggerated but these 6.0s are either a hit or miss on fuel mileage so anything is possible. Airraid claims 21hp and 44 ft lbs gains! Where do they get these numbers? Where is the proof? I'm contemplating buying one just for the sound....

Airraid claims 21hp and 44 ft lbs....
AIRAID Intake System For 2003-2007 6.0L Ford PowerStroke Diesel

2005 F250 SCSB XLT 4X4- Studded-EGR Delete-OEM HEAD GASKETS(black onyx failed)-Oil Cooler Rebuild-HPOP fitting-6.4 Banjos-Blue Fuel Pressure Spring-MBRP 4"-Innovative Tunes-Viper Remote Start-BFG 35s-2.5" Leveling Kit-- 13.9 @ 95mph on x-street, x-race should be good for ~13.6

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post #2 of 40 Old 08-26-2011, 05:35 PM
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It's BS. If I had all the power mfg's claim I'd have 600hp and 1000tq by now. Your buddies 3mpg is BS too.
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post #3 of 40 Old 08-26-2011, 05:44 PM

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I can tell you that when I put a magnaflow 5in turbo back exhaust (4in DP into a straight back 5in muffler with 6in tip), AFE stage II intake, and CFM large mouth kit I did picked up over 1mpg and I would even say it was more like 2. I know my boost when I was cruising around went down by about 3-4 psi. This of course was with a completely stock truck with stock tune. I cant say for sure which of the three things caused me to see the gain but it was there.

2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
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post #4 of 40 Old 08-26-2011, 06:00 PM
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There may be a slight mpg gain on an intake, but I doubt it is enough to justify the expense of the system to install. Power claims on those airfilters are under peak loads running WOT, how often are you pushing that much air under normal driving conditions. You won't see power gains on a basically stock truck.

FWIT, the guy starting to Modify his 6.0L can do better with that investment by getting him a monitor and SCT to start with. A 3mpg claim on intake alone, I find it very hard to believe. I trust the stock Donaldson to do its job and filter, more than any aftermarket filter to improve mileage. Turbos and valves aren't cheap to replace.
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post #5 of 40 Old 08-26-2011, 07:24 PM Rookie
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I do know each 6.0 is different, When I put on my 4in exhaust I lost about 3/4 gallon a mile. I had to put a tune on it to get my milage back. A buddy put a intake on his 6.0 and got and got about 1.5 mile improvement. But that was not what he got the intake for, he just wanted a filter that he could clean.


00 7.3 with some mods
06 6.0 4in exhaust
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post #6 of 40 Old 08-26-2011, 08:18 PM
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every performance mod i have done to my truck it loses more and more mpg. that or my foot keeps getting heavier

2010 F350 6.4-
s467 MPD single kit, H&S Jesse Byall tuning, No limit IC piping and intake,mishimoto intercooler, MPD billet CCV/oil filler, FASS with sump, SOTA A.W.O.L. polished wheels, toyo rt tires, RED Newton traction bars, oem projector retrofit and a bunch of LED lights LOL

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post #7 of 40 Old 08-26-2011, 08:31 PM
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I have tried just about every aftermarket intake out there (AFE Stage 1, 2, and S&B) and all have given me the same result: nothing but an empty wallet. Save your money. I threw my stock intake with a new Donaldson filter on a couple days ago, and surprisingly, the whistle is louder with the stocker..! The jnly difference I noticed was that the truck smokes a little more.. which I don't like. But I'll take a little bit of smoke over a dusted turbo!


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4" MBRP Exhaust w/ Muffler (DPF/DOC Delete), Modded Stock Intake, H&S XRT Pro
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post #8 of 40 Old 08-26-2011, 09:04 PM
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Thanks for the question and the info y'all! I've been wondering the same things... I learn something else about these trucks every time I log in!

2005 F-250 Lariat FX4 CC SB
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post #9 of 40 Old 08-27-2011, 05:52 AM
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do the zoodad mod it will give you a ram air effect

here is a link

zoodad mod

Last edited by 05harley; 08-27-2011 at 05:57 AM.
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post #10 of 40 Old 08-27-2011, 12:57 PM
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Seriously, do the zoodad.

3mpg is a serious statement and if it were close to being true everyone on here would go get it. Did you see our intakes?

Proverbs 21:9 It is better to live alone in the corner of an attic than with a nagging wife in a lovely home. Now you might not believe in God, Jesus or the Bible, but I'm sure you can appreciate the wisdom of that verse. Amen?

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