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Brad
Dodge Dakota
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8/29/2005
11:26:38
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 Subject: K&N Cold Air Intake question
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I've been reading about this and I'm considering it for my 2001 4.7 Quad Dak. I've got a mechanic friend who told me to be careful about rushing out and doing it because the truck's computer could possibly modify its setting and make the change practically useless.
Any truth to this, or would the mod be beneficial? (Considering changing my single exhaust into dual sometime in the future after the air intake change).
Thanks.
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N56629
Dodge Dakota
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8/29/2005
16:28:52
| RE: K&N Cold Air Intake question
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If the air is actually cooler the computer will compensate but it will be to your advantage.
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Jecht
Dodge Dakota
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8/29/2005
17:18:19
| RE: K&N Cold Air Intake question
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the computer updates its self from your driving habits every 200 miles. so its always modifying its self. weither you have a stock air filter system or a CAI system.
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Brad
Dodge Dakota
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8/29/2005
19:05:04
| RE: K&N Cold Air Intake question
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Thanks for the info. Would the cold air intake be worth the $300 or so then?
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N56629
Dodge Dakota
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8/29/2005
21:09:14
| RE: K&N Cold Air Intake question
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"the computer updates its self from your driving habits every 200 miles. so its always modifying its self. weither you have a stock air filter system or a CAI system."
So? How is that relevant to a CAI?
Your O2 sensor will pick up on it a lot sooner than that. It maintains a constant air/fuel ratio. The only way it can do that is to supply more fuel when the air is colder/denser. Denser air/fuel mixture = more hp. This doesn't have anything to do with fooling the computer.
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Android287
GenIII
8/29/2005
23:20:57
| RE: K&N Cold Air Intake question
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$300 bucks is alot for an intake. On K&N's web site the intake dyno's at about 8hp. This is probably pretty accurate. I have played around with a few different intakes. The one that worked best for me is a mandrel bent 3.5" tube from the stock air box to the throttle body. I pulled out the snorkel on the stock air box and clamped a peice of 4" flex tubing and sent it into where the stock snorkel used to be.
The HP gained will not be lost over time. The computer will adjust its air fuel ratio accordingly to the larger amount of air coming into the engine.
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N56629
Dodge Dakota
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8/30/2005
06:35:24
| RE: K&N Cold Air Intake question
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"The computer will adjust its air fuel ratio accordingly to the larger amount of air coming into the engine."
This is not possible. It is a demand system. You can double or triple the supply and the engine will only intake what it needs not what is available.
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Kowalski
GenIII
8/30/2005
07:38:28
| RE: K&N Cold Air Intake question
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If the air is cooler, there's a sensor for that though - so a fuel adjustment may still be made. However most of the power from this mod will be found at the upper rpm range from better breathing - is that what you're looking for ? If you're looking for good power to $$$, across the whole rpm range, do you already have the HO cams ?
Lead, follow, or get out of the way
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N56629
Dodge Dakota
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8/30/2005
09:49:15
| RE: K&N Cold Air Intake question
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Most people forget that all that extra 8hp or so comes at the high end where you do less than 1% of your driving. You may realize some cool air effect at highway speeds but the difference from the stock cool air intake is rather small. In city driving you would have a hard time measuring the difference. As soon as you let off the throttle the temperature in the intake manifold climbs rapidly regardless of what kind of intake system you have.
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Brad
Dodge Dakota
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8/30/2005
09:50:53
| RE: K&N Cold Air Intake question
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Yeah, I'm looking for good power across the rpm range. I don't have HO cams - could you give me some more info so I can do some research on that? It might be a good starting point instead. Thanks!
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Lurkin
Dodge Dakota
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8/30/2005
09:58:35
| RE: K&N Cold Air Intake question
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For that amount of money I would look into the HO cams or a SuperChips, depending on if you want to open up the valve covers or not.
Much better bang for the buck.
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Brad
Dodge Dakota
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8/30/2005
10:38:08
| RE: K&N Cold Air Intake question
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Yeah, I think I'm going to look into the cams. I didn't realize the air intake was more for high-end. I don't race and really need to start from the low-end rpms and work my way up from there. And yeah, they do seem pricey.
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Brad
Dodge Dakota
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8/30/2005
10:48:36
| RE: K&N Cold Air Intake question
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What do I need to look for on HO cams? From what I'm seeing around here, do I need to buy JEEP cams, and if so, what year, make, etc? Or am I looking for HO cams for a Dakota? Where can I get them?
My truck is a 2001 4.7L 4WD Quad cab Dakota.
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N56629
Dodge Dakota
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8/30/2005
10:50:46
| RE: K&N Cold Air Intake question
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You might find a good deal on HO cams. People with HO cams are moving up to KRC. I saw one set for $100.
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Kowalski
GenIII
8/30/2005
12:01:30
| RE: K&N Cold Air Intake question
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As far as I know, all the HO cams are the same. When I put them in my '00, they were only available as the Jeep aplication. Lots of info on this site if you just search "HO cams". Good power increase across the whole range, and cheaper than the intake if you can do it yourself - toughest part is R&R of the valve covers.
Lead, follow, or get out of the way
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