Air Intake

KhakiCRD · **Posted:** Fri Mar 21, 2008 2:17 am

Has anyone modified the air intake on their CRD? I have heard of using the gas version setup, but has anyone tried a cone type filter with aluminum piping or something similar? Just curious what kind of gains could be had.

CATCRD · **Posted:** Fri Mar 21, 2008 1:27 pm

No one has done any good before and after dyno testing, if that's what you mean. I'm unwilling to go to the inferior filtering of non-paper elements and sand blast my turbo compressor blades.

warp2diesel · **Posted:** Fri Mar 21, 2008 4:03 pm

The argument for the 2002 Liberty 3.7L V6 air box has merit. Many have proven it by installing a Air Filter Restriction Gage and found that with the V-6 air box mod, air restriction is not an issue with our CRDs. Putting on a Cone shaped air filter will give the noise a big boost, but not the performance.
Engines with restricted air flow may benefit from the Cone shaped filter, but our CRDs don't need it.

Steve

Stan Wright · **Posted:** Sun Mar 23, 2008 1:03 am

I put a larger paper filter on mine ( http://liberty.eurekaboy.com/airintake.htm ), then tried the V6 air intake ( http://liberty.eurekaboy.com/v6airbox.htm ), then went back to the larger paper filter to see if I noticed any differences.

The V6 intake was an improvement over the factory intake and probably the best choice if you want the intake to look stock. I get better throttle response with the larger paper filter.

Pablo · **Joined:** Thu Feb 02, 2006 10:06 pm **Posts:** 1201

I have got this waiting to go on:

http://www.dpgoffroad.com/airflowsnorkels.htm

Much cleaner air, and probably cooler as well.

fastRob · **Posted:** Sat Mar 29, 2008 1:38 pm

This is what is on the diesel wrangler I found.

http://www.ajeepthing.com/images/wrangl ... intake.jpg

The Egyptian Wrangler had something similar for the desel.
Other than a snorkel, what else is there?

KJ 119 · **Posted:** Mon Apr 07, 2008 11:29 pm

If anyone wants to install a snorkel,i've gone through it.
pm me and i might be able to save you some time and money...
simple plumbing parts solved my hole to plug"also makes a handy housings for the taps for
my moisture sensor alarm"
love my snorkel....worth all the hard work of installation"not yer basic install"

Pablo · **Joined:** Thu Feb 02, 2006 10:06 pm **Posts:** 1201

Someone on the other site who occasionally posts here has put a conical filter inside the factory airbox by extending the hose feeding into the airbox down into the conical filter. So that is another possibility.

SBosco · **Posted:** Tue Apr 08, 2008 10:37 am

I am currently making an intake out of the greenfilter brand twister housed cone filter, some 3" aluminum tubing, a spectre aluminum MAF housing, and a hard to find silicone elbow which adapts the 3" tubing to the turbo inlet. I am stalled right now because I need to make a mounting flange for the other sensor in the airbox (pressure sensor I think). I am having a difficult time finding a way to precisely cut a 3" diameter grove out of the flange I fabricated so it will hug the curve of the 3" tube and can be welded. I'll post some pics and part #s if you would like.

~Steve

Air Intake

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