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-   -   cold air intakes (http://www.wranglerforum.com/f282/cold-air-intakes-1666.html)

tjsooley 04-30-2006 12:20 PM

cold air intakes
 
cold air intakes. do you get better throttle response and increased horsepower?
i wheel am not a serous wheeler

Jerry Bransford 04-30-2006 12:26 PM

Waste of money. Really. :)

Tdad 04-30-2006 07:34 PM

I'm going to have to disagree with Jerry on this one. I'm running a Rusty's air tube with a K&N filter. This setup is alot less money than the "kits" they sell.

While I agree that the claims of 20 extra HP are probably just marketing BS, the one thing I have noticed is improved throttle response, especially at lower throttle amounts. My Jeep starts out from a stop better, and on the trail it's much easier to feather the throttle in slow situations. With the stock box, it seemed you have to give it gas with no acceleration, and then it would finally go.

Here's a pic of my setup:

http://home.ptd.net/~ejhu/images/BMJA/Filter3.JPG

tjsooley 04-30-2006 07:40 PM

yea i just got it

DoubleUp686 05-01-2006 04:34 PM

I used to have a cold air intake with a cone filter that I got on ebay for only $60. It definitely gave me more power and sounded cool too, but it was terrible for offroading. If you plan on going offroad, I'd stick with what you have or get an ARB Safari Snorkel. They're expensive but they will protect your engine offroad and increase performance a little bit.

tjsooley 05-01-2006 04:54 PM

did you know that k&n makes a pre filter for the cone filter for offroading

Jerry Bransford 05-01-2006 05:43 PM

Quote:

Originally Posted by tjsooley
did you know that k&n makes a pre filter for the cone filter for offroading

I do and I had one. It fit so sloppily that unfiltered air could get around it. I ended up placing a foam Unifilter over it to hold it snug to the K&N.

What a waste of friggin money, time, and energy trying to get a K&N to filter air adequately.

The below is my K&N/K&N Outerwears/Unifilter combo that is now finally collecting dust in my junkbox... better than it ever did when it was on my Jeep. :rolleyes:

tjsooley 05-01-2006 07:32 PM

did you get the wrong size b/c they make like 4 different sizes

tjsooley 05-01-2006 07:33 PM

p.s i dont really wheel so i am not worried about the fact that cai's are not so good to use offroading

Texapple 05-01-2006 07:52 PM

1 Attachment(s)
Quote:

Originally Posted by tjsooley
p.s i dont really wheel so i am not worried about the fact that cai's are not so good to use offroading

Attachment 295


now Tim, I saw you wheeling.....once http://www.freesmileys.org/emo/angelic006.gif

tjsooley 05-01-2006 08:29 PM

lol

that was a little over my head

Jerry Bransford 05-01-2006 08:48 PM

Quote:

Originally Posted by tjsooley
did you get the wrong size b/c they make like 4 different sizes

The dealer said it was the right size, then I griped to K&N directly and they sent me one free that they said was for my particular K&N filter model #... and it was the same model Outerwears filter with the same too loose fit. The elastic didn't close off that side of the bag very well at all, a fly could have flown into the filter from the gap that was all the way around.

That crappy K&N Outerwears filter fit was the final nail in the K&N coffin so far as I was concerned. :eek:

tjsooley 05-02-2006 05:18 AM

when i wheel i will try zip ties and a slightly larger one

tjsooley 05-06-2006 10:46 PM

anyway its been 2 days and i love my intake. i love the sound and the throttle response and the acceleration. best investment so far except the safari mirrors

97tjcse 05-09-2006 03:31 PM

I agree with TDAD. I installed one on my 97 and you can notice the difference in response.
Maybe not the same advantage as the full blown air system, but it does make a difference.

Does anyone have any pictures of a hand made heat shield or details of constructing one. I thought about shaping a piece of aluminum to deflect heat on the side of the filter.

Jerry Bransford 05-10-2006 02:01 AM

I wish I could take credit for coming up with this gem posted earlier tonight on JU...

Quote:

Originally Posted by alexb
Well, the biggest restriction in the air flow is your throttle plate. So until it is wide open, there is no difference between a paper filter and a K&N (or no filter at all if that matters, just open the throttle a little more to get the same amount of air). And at WOT the engine runs open-loop, pumping a predetermined amount of gas.
So the only difference that can be noticed is at near-WOT condition. How often do you drive at near-WOT?

Since driving at or near WOT is not exactly economical, how any gas savings can be achieved?


1BLKJP 05-10-2006 04:36 PM

Bingo Jerry. I also noticed the other day that their Dyno results for the cold air intake were at 5000 RPM. Not really in the power band that we use in our jeeps on a regular basis.

tjsooley 05-10-2006 08:04 PM

i know what yallr saying but my mpg whent up to 17 from 15 with no change in driving or gas or additives so ikd

Absolute Offroad 05-11-2006 12:04 AM

Jerry, I agree with you 101%. None of these will trap dirt below the 5 micron size. The fine silt we have out here in AZ is much finer than that. I too had a "guaze type" filter and was tired of cleaning mud out of my throttle body. NOW onto the technical aspect of it.....:)

By removing the stock airbox and adding a cone filter, you are bringing in more underhood HOT air...So what you say? Well there is a sensor called " intake air charge temp" sensor which tells the computer how dense the air is (in conjunction with other sensors) and alters the Pulse width (theres that word again) of the fuel injector. Summary: Hot air is LESS dense than COLD air. LESS dense (hot) air is less efficiant than cool air (thats why you Jeep runs better in cold, dry air than hot, damp air) Less fuel will be injected into the motor because of the incorrect reading from the IAT sensor....= Less HP.



Quote:

Originally Posted by Jerry Bransford
I do and I had one. It fit so sloppily that unfiltered air could get around it. I ended up placing a foam Unifilter over it to hold it snug to the K&N.

What a waste of friggin money, time, and energy trying to get a K&N to filter air adequately.

The below is my K&N/K&N Outerwears/Unifilter combo that is now finally collecting dust in my junkbox... better than it ever did when it was on my Jeep. :rolleyes:


Absolute Offroad 05-11-2006 12:05 AM

Your Fuel MPG went up because the engine is running LEANER.



Quote:

Originally Posted by tjsooley
i know what yallr saying but my mpg whent up to 17 from 15 with no change in driving or gas or additives so ikd


mud707 05-11-2006 02:56 PM

If it went up b/c it is running leaner what caused the change. It should of only changed if the sensor says it is mixing with the air better right?

mud707 05-11-2006 03:04 PM

If it is running leaner what caused the change? Something had to change the sensor reading to tell the comp. to lean out the mixture as in more airflow or would it be less?


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