Is a cai necessary? - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 06-24-2012, 04:27 PM Thread Starter
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Is a cai necessary?

Should I put out the money for a cai or just keep the stock one

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post #2 of 13 Old 06-24-2012, 04:36 PM
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Necessary, no not unless you are trying to make over 500 HP. Most guys will tell you the stock one is the best all around filter for your truck. It flows well and also filters well. My opinion is put that money towards some other upgrade.

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post #3 of 13 Old 06-24-2012, 04:49 PM
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Quote:
Originally Posted by Stumppy View Post
Should I put out the money for a cai or just keep the stock one

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post #4 of 13 Old 06-24-2012, 04:52 PM Thread Starter
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Im.getting a scangauge ii tomorrow.

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post #5 of 13 Old 06-24-2012, 05:00 PM
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An excerpt from my performance thread:
Write Up: Power Potential of the 6.0L PSD


Quote:
Cold Air Intakes
There is a lot of debate about the cost-benefit ratio of upgrading the stock air filter and intake assemblies on the 6.0L. The old mindset was that the stock air filter was good to 500RWHP, and for the most part that is still correct. However once you building beyond the limits of electronic programming, you are limiting your gains by the stock box.

507RWHP was put down with 175's and the Powermax turbocharger, it was truck builds similar to this that gave folks the impression that the stock air filter can and will support builds upto that level of power. Depending on your driving evironment, and personal perferances, the stock filter may not be best for your 500RWHP build. Dusty areas, and dirt roads, situations were filtration is more important is were the stock filter surpasses anything on the aftermarket for filtration and protecting your investment.

When you look at the gains of these advanced builds being put together now. 485RWHP on an S&B intake, exhaust, stock injectors, and a Stage 2 turbo, with ECM/FICM tuning. (Only 22HP shy of that 175, Powermax, stock air box, ECM tuning only.) With the investment of a turbo or injectors (between $850-$3600, plus instalation), its pretty clear you are holding your build back with the stock air filter (roughly a $400 upgrade). There are two leading filter systems out there, the first is the S&B intake and the other is from AFE.

When you look at weather your build requires the addition of a cold air intake, look at that filtration to performance balance.
Hope this points you in the right direction. There was just another truck put down over 500HP on the stock air filter setup, with both injectors and turbo. The flow is there for those builds. If you are starting to modify your 6.0L, the money is better spent elsewhere for the time being.
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post #6 of 13 Old 06-24-2012, 05:04 PM
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Quote:
Originally Posted by Stumppy View Post
Im.getting a scangauge ii tomorrow.

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Good, every thing else is langiappe (extra). Not necessarily neaded.:thumbup:

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post #7 of 13 Old 06-24-2012, 05:37 PM Thread Starter
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Im not looking for anything over 500. I want a reliable dd and a towing machine.

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2004 CC SB 6.0
4 Inch Turbo back Exhaust
S&B Intake
Sct with Vivians looney wild tune.
Egr Delete
Arp Head studs and oem gaskets.
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post #8 of 13 Old 06-24-2012, 06:00 PM
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It all depends on how bad you want one. The stock air filter is not a real hindrance till 500hp but a CAI will flow better albeit at the cost of some filtration.
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post #9 of 13 Old 06-24-2012, 06:02 PM Thread Starter
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Will it lower my egt's? first diesel so not knowing too much about them.

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2004 CC SB 6.0
4 Inch Turbo back Exhaust
S&B Intake
Sct with Vivians looney wild tune.
Egr Delete
Arp Head studs and oem gaskets.
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post #10 of 13 Old 06-24-2012, 08:23 PM
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Is there any info as to which cai flows better? I am looking between the S&B and AFE.
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