My version of a cowl snorkle

dieselenthusiast said:
the cowl air intake requires a vacuum. Agreeing that the cowl provides more available cold air, I was questioning whether or not there was enough available air since it was having to suck instead of being forced.
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Actually, IIRC there is positive pressure against the cowl area. Not as much as directly in front of the grill, but still not negative pressure.

?Blue?sdriver said:
Thumper was killed on a highway, virtually rolled up into a ball when it was flipped while doing 100+. No I wasnt driving. A stupid now dead girl was.
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dukie564 said:
sucks about your old rig.
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:roflmao: What a d!ck.
 
:roflmao: What a d!ck.[/QUOTE]

She stole Thumper, went to a bar and got slathering drunk, then got on the road and killed herself and my Jeep while running from the cops. Luckily there was VERY little traffic on the highway at the time, so her stupidity only cost her own life. Check that at the door till you KNOW. Oh yeah and, no, I didnt even know her, other than she was a car thief.
 
dieselenthusiast said:
Now with the Jeep Cherokee, the cowl intake setup is a little different. Instead of a ram air effect (similar to the OE setup), the cowl air intake requires a vacuum. Agreeing that the cowl provides more available cold air, I was questioning whether or not there was enough available air since it was having to suck instead of being forced.
Click to expand...

The cowl area is quite big/open. and as a previous poster said, there is positive pressure at the cowl inlet at speed. No issues with enough air being available.
 
you mean ABS module? Never seen a XJ with cruise on the drivers side.

In that case this won't work, or you need a routing that goes to the other side, which is messy at best.
 
further inspection of my 96 has the Catalyst sticker RIGHT where the intake tube would go. I hesitate to destroy that sticker for smog reasons, but am really rather unsure if it would make a difference... Opinions? SERIOUS opinions??
 
hubs97xj said:
I just drilled right through the vacuum line diagram. :dunno:

http://i266.photobucket.com/albums/ii244/AHhub/forum stuff/DSCF5450.jpg
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Same here.

HPIM0187.jpg


JIM.
 
dukie564 said:
you mean ABS module? Never seen a XJ with cruise on the drivers side.

In that case this won't work, or you need a routing that goes to the other side, which is messy at best.
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I am pretty sure it was cruise. It had a vacuum line and a cable that went to the throttle linkage. Honestly i really dont see me using this feature so it will most likely come off "for the good of the build"
 
I'm looking to do this. was the hole that was drilled exactly 3 inches? I grabbed a 3-3/8 holesaw and compared to the 3" pvc I bought, and the sizes are almost exact.
 
Update. ?Blue?s Airbox is holed, and I went ahead and used Spectre parts from Autozone for the "Snorkel" 1 Air hose mounting flange, 1 black flexhose, (^28" extended). Trimmed the flanges base, and stuck it through the hole in the airbox. Pushed the flex hose end w/ coupler onto it, hose clamped it, and sealed the lot with black RTV. Next I WILL be obliterating the Catalyst sticker with another hole into the cowl. As stated, the plastic block off plate that happened to be over the intake hole next to the headlight on this particular XJ makes a handy lid for the intake hole of the airbox. Trimmed to fit, mounted it to the INSIDE, actually, secured it with two small screws, and RTVd it as well. Very cool "Poor mans snorkel/CAI" Setup! Also like that the air filter remains in the box, as opposed to the "In cowl filter" I fabbed up before.
 
Glyphic said:
I'm looking to do this. was the hole that was drilled exactly 3 inches? I grabbed a 3-3/8 holesaw and compared to the 3" pvc I bought, and the sizes are almost exact.
Click to expand...
i think it'll be too big. The stock intake tube is the thing i used to poke through the cowl, and it fit inside the pvc, so that would be exactly 3" diameter.

I didn't use a hole saw though, i drilled a bunch of small holes in a circle, then cut out between them with a pair of metal shears and a sawzall.
 
You all have your brake booster on the wrong side :)

I used a couple of pod filter flanges, one on the firewall and the other on the air filter box.

DSCN0602.jpg

DSCN0603.jpg

DSCN0604.jpg

DSCN0605.jpg



Sent from my iPhone using Tapatalk
 
dukie564 said:
the only real benefit of a k&n filter as far as i'm concerned is the ability to wash and reuse the filter. The so called "power increase" has been proven to be a marketing gimmik. Regardless of this though, I have one that I use when I'm not wheeling, and in the wintertime. Performance is the same, if not a little better with the cowl intake. I think it's because 1) the air is cooler and 2) the inlet tube is bigger than a k&n inlet.

The stock airbox and filter is more than sufficient to supply the amount of air a stock 4.0L needs. A K&N filter will flow a bit better, but you lose filter efficiency.
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true. If I recall right, the air filter for a Dodge Ram with the 318v8 or the 360v8 magnum is the same filter used on our 242ci Jeeps.

srmitchell said:
I had the K and N kit, switched to this, and noticed no difference.

Much better than stock though.
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A quality (wix, Hastings, Baldwin) filter will remove more dirt than a KN will. Hold a KN up to a bright light and see the much bigger holes than the paper filter... yup dirt can get through those.
 
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