CAI
Logistics Pro
Joined: Jul 2002
Posts: 4,821
Likes: 19
From: South Dakota
I've always found the arguments for and against CAIs quite entertaining.
I've always been able find dyno charts pointed both ways too.
The one thing that I don't always agree with is that the popular type of CAI's pull hot air from the engine bay.
I only agree with it when the vehicle is at rest. My own tests with a pair of thermocouples confirm this as well. I've never been able to measure a difference in air temps while under way with a thermocouple in the fender well and another on the end of a CAI.
Every vehicle I've ever owned has benefited from one in the past, Ford and Dodge diesels, every type of fuel injected Ford motor, ect. etc.
On my 2010, I plan on waiting it out a bit longer. I'm going to wait and see what AEM, AFE, and Banks come up with, if any.
It looks like Ford finally got their ducks in a row on this setup (I don't think that the radiator overflow was real smart...looks like some heat transfer could possibly take place).
I suspect that the reason that the Gotts mod isn't very effective is that removing the snorkel has now made the rest of the intake unbalanced and increased turbulance in the intake resulting in poorer flow.
I've always been able find dyno charts pointed both ways too.
The one thing that I don't always agree with is that the popular type of CAI's pull hot air from the engine bay.
I only agree with it when the vehicle is at rest. My own tests with a pair of thermocouples confirm this as well. I've never been able to measure a difference in air temps while under way with a thermocouple in the fender well and another on the end of a CAI.
Every vehicle I've ever owned has benefited from one in the past, Ford and Dodge diesels, every type of fuel injected Ford motor, ect. etc.
On my 2010, I plan on waiting it out a bit longer. I'm going to wait and see what AEM, AFE, and Banks come up with, if any.
It looks like Ford finally got their ducks in a row on this setup (I don't think that the radiator overflow was real smart...looks like some heat transfer could possibly take place).
I suspect that the reason that the Gotts mod isn't very effective is that removing the snorkel has now made the rest of the intake unbalanced and increased turbulance in the intake resulting in poorer flow.
Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
Have you seen one 6.0 that has benefited from one that it's only mod was the intake? I haven't. There are guys that are running more HP then I am and still have the stock intake. At the level of money that they have thrown at their vehicles an intake is chump change.
Logistics Pro
Joined: Jul 2002
Posts: 4,821
Likes: 19
From: South Dakota
Yeah I have, but it depends on how much is defined as an signifincant amount.
You can also find gobs of posts on the net with the dyno sheets as well.
Some vehicles respond better than others. To make a blanket statement that CAI's aren't worth the coin depends on your own perspective, and no one esles. It may not make sense to you for one or two extra horses, but to me it may.
Some are okay with spending $300 for a couple of horses. Some if not most would rather spend $300 to get a few horses, rather than dumping $2000 to get many more horses plus the significant time investment.
You can also find gobs of posts on the net with the dyno sheets as well.
Some vehicles respond better than others. To make a blanket statement that CAI's aren't worth the coin depends on your own perspective, and no one esles. It may not make sense to you for one or two extra horses, but to me it may.
Some are okay with spending $300 for a couple of horses. Some if not most would rather spend $300 to get a few horses, rather than dumping $2000 to get many more horses plus the significant time investment.
Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
Yeah I have, but it depends on how much is defined as an signifincant amount.
You can also find gobs of posts on the net with the dyno sheets as well.
Some vehicles respond better than others. To make a blanket statement that CAI's aren't worth the coin depends on your own perspective, and no one esles. It may not make sense to you for one or two extra horses, but to me it may.
Some are okay with spending $300 for a couple of horses. Some if not most would rather spend $300 to get a few horses, rather than dumping $2000 to get many more horses plus the significant time investment.
You can also find gobs of posts on the net with the dyno sheets as well.
Some vehicles respond better than others. To make a blanket statement that CAI's aren't worth the coin depends on your own perspective, and no one esles. It may not make sense to you for one or two extra horses, but to me it may.
Some are okay with spending $300 for a couple of horses. Some if not most would rather spend $300 to get a few horses, rather than dumping $2000 to get many more horses plus the significant time investment.
2 horses can also be explained away by the dyno and dyno operation and what type of dyno as well. Load baring or not. How good the operator is etc.
The place that I alluded to going to on the 4th has a dyno that Fords typically don't do well on. I have always gotten a lower dyno run at that dyno compared to others. Parts haven't changed, but my HP/TQ readings have. We are also talking about more then 2 or 3 HP as well.
Who is to say that it really is indeed the intake versus the dyno/operator, especially considering it's only 2 or 3 horses(I've seen dyno runs that showed flat results as well). This is even assuming that everything is in working order(truck and dyno).
Now with regard to the 6.0 this is further compounded with the fact that most a/m intakes do not flow more then stock until you hit 3700 on the RPM. Peak HP/TQ is at 3300/2000 respectively(those are stock output rpm ranges, which is what we have to compare to if you are saying intake and intake alone induces HP/TQ improvements). Do you notice something odd about that picture?
Cargo Master
Joined: Sep 2005
Posts: 2,976
Likes: 911
From: Montana
Don't forget that most CAI's don't filter as well as the stock box either... In the case of the Powerstroke, a K&N will grenade the turbo after about 100,000 miles. The turbo fan gets mushroomed. As for a naturally aspirated motor, I just wouldn't waist the money for the possible 2-3 HP increase at 4,000 + RPMs ( I rarely rev that high in my truck and 2-3 HP wouldn't even be noticed). Ford engineered a good intake system on these trucks and I, for one, won't give in to the hype of a CAI. Those who do have more money than they do sense.
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