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Discussion Starter #1
Hello all, bought my CJ a year ago and slowly fixing problems, as the PO's did most of the heavy lifting.

My 85 CJ7 has an inline 6 from a 91 Wrangler, so it is now fuel injected. I have browsed tons of pictures on google images of under hood shots of CJ's and wranglers and have never seen an intake configuration that matches what I have.

I am looking to replace the system because it seems inefficient and restrictive. When driving I get the feel that its just not getting enough air. An upgrade to a new muffler made some instant improvements, so I am hoping changing up the intake will make a dent as well.

The Accordion hose runs from behind the headlights and into a black metal canister that houses a circular air filter. Further down the line is a PowerAid throttlebody spacer. From what I have read the Jury is still out on their effectiveness.

I have a vacuum guage in the cab and I am noticing that I am getting a whistle noise when I dip down from normal range, and its driving me crazy.

Any info on if this intake is actually good for my system, thoughts on Spacers, and this whistle noise would be greatly appreciated. Thanks All.
 

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Is that a coffee can covering the filter? Lol. Looks like a makeshift intake. My old tj went to the passenger side. Not the driver. It looks like its sealed to tight and not allowing airflow.
 

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Discussion Starter #3
My thoughts exactly. Intake goes to the driver side. The filter is very snug and tight inside that canister. I imagine it was designed to keep a lot of the dust out, but I feel like it might be doing more harm than good.

The air moves into the can at the accordion hose joint and then right out the 2" Air hose, so the air is really only passing through 1 spot on the air filter. Seems wrong to me.

My plan would be to lose the accordion hose and canister and move towards an aftermarket intake with some kind of heat shielding. My concern being that most of the intakes were designed to fit in a wrangle engine bay, and the CJ seems just a little different.
 

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If you are in a junkyard check out the air filter for a late 80's to early 90's cherokee. I can't tell from the picture if the depth is there to fit it but the layout of the airbox could work. I sold mine so I can't measure for you.
 

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That filter setup looks a little restrictive. Find a 91+ aircleaner. The throttle body spacer is probably the culprit in the whistling mystery.



 

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This is the mount plate if you can get it also. IIRC it was spot welded to the fender skirt. If you cant get it, you can just rig something yourself. The filter box is nice and free flowing with a big filter area

 

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Discussion Starter #8
Update for anyone interested.
Purchased a CAI system and it was a trainwreck. I went with a AIRAID system to match the POWERAID throttle body spacer. Since the engine is from a 91, I went with the 91 wrangler setup and figured the air dams would just need a little modifying to fit. I was completely wrong. The air dams are essentially worthless at this point, I cut and cut and cut and the thing will just not fit. I kept it simple for the time being and just attached the Intake hose to the cone filter and reattached everything just to see if it made any difference at all.

Throttle response has an instant improvement, but the whistle got louder. Looking at hoses and connections next to start eliminating suspects.
 
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