For Those who have done the Air-Box Mod

Cowcatcher · **Posted:** Wed Oct 24, 2007 1:53 pm

Did you restore the seals to the hood? It might be that taking those out limits the effects of this change.

DarbyWalters · **Posted:** Wed Oct 24, 2007 2:05 pm

The CRD does not have the "foam" seals like the gasser...just the single rubber strip running across the front of the hood. The weatherstripping you see was added and a couple pieces were added to the hood to make it more airtight.

Cowcatcher · **Posted:** Wed Oct 24, 2007 2:11 pm

I know that. I believe you indicated that you had removed the hood weatherstrip and you had also noted that the gasser had some crush seals on the hood to keep air from slipping past the snorkle.

DarbyWalters · **Posted:** Wed Oct 24, 2007 3:04 pm

Nah, I had just cut back 4"...don't think it made a difference

skywarn · **Posted:** Wed Oct 24, 2007 3:53 pm

Hey Darby... ummm...

wheres your hood??!! :shock:

Sir Sam · **Posted:** Wed Oct 24, 2007 5:41 pm

skywarn wrote:

Hey Darby... ummm...

wheres your hood??!! :shock:

its still there, the camera is just low enough that it is looking under the end of the hood past the cowel to the windshield.

fatweasel · **Posted:** Thu Oct 25, 2007 6:02 am

How about 20" or so of that plastic hose that hooks up to the discharge of a clothes dryer.

The open end could come through the grill - where the intake currently is located. The hose could be snaked around - similar to the path that Darby has set up with cardboard - and then attacched to the snorkel with duct tape to provide a good seal.

Somthing like that could provide the "ram air" effect and provide enough convolusions to allow water and leaves to hang up prior to hitting the filter.

DarbyWalters · **Posted:** Thu Oct 25, 2007 8:47 am

That is kinda what I am working toward...need to just figure how to keep water at "bay"...

BiodieselJeep.com · **Posted:** Thu Oct 25, 2007 11:53 am

I've been talking about this for a while, good for you Darb. The OEM set -up makes tries to make a ram scoop but, IMHO, fails. I might try to improve the OEM, I'll post picks.

gmctd · **Posted:** Thu Oct 25, 2007 12:19 pm

Hint: yer local boneyards offer a plethora - no, a veritable cornucopia - of fancy ductwork adorning various modern vehicles, all fer the pickin' and choosin' - simple to modify with scissors, a pop-rivet tool, and some black RTV

DarbyWalters · **Posted:** Thu Oct 25, 2007 11:11 pm

Here I am looking at this possible setup and then it dawns on me...I am defeating the purpose of the Gasser Airbox. I am trying to collect air (with dirt and water) from the same area as the original CRD Airbox. I am still going to work on it keeping all this in mind.

Cowcatcher · **Posted:** Fri Oct 26, 2007 10:39 am

The same went through my mind but I would think that the path up then back down might strip some of the trash, and especially the water, out.

gmctd · **Posted:** Fri Oct 26, 2007 11:22 am

Even better would be in and down and back up, with vent at the bottom for drainage, but alas - real estate is at a premium

bugnout · **Posted:** Fri Oct 26, 2007 12:21 pm

I keep looking at those air scopes I've seen on some cars. (I think chevy Barreta) they position them right and left front edge of the hood. I think they are non-functional, but something like that would do the trick.

Ideally that would give you cold ram air, stuck up in the laminar flow on the hood. I can't bring myself to cutup the hood. Need someone to photoshop it see what it might look like.

Cowcatcher · **Posted:** Fri Oct 26, 2007 1:53 pm

bugnout wrote:

I keep looking at those air scopes I've seen on some cars. (I think chevy Barreta) they position them right and left front edge of the hood. I think they are non-functional, but something like that would do the trick.

Ideally that would give you cold ram air, stuck up in the laminar flow on the hood. I can't bring myself to cutup the hood. Need someone to photoshop it see what it might look like.

There is a photo rolling around the LOST forum of the military wrangler with a snorkle coming out of the hood. It would seem that would be a viable solution for the CRD as well and mate it up with a tube from the snorkle sealing it under the hood with crushable foam weather stripping.

Bill.Barg · **Posted:** Fri Oct 26, 2007 2:27 pm

An observation about snorkles;

I lived in Australia for many years, and was surprised by the number of SUVs and Pickups (Utes) with snorkels, compared to the western US. I figured it had to do with the Aussie tropics and fording rivers, etc. Another obvious difference in Oz is the much greater number of Diesel SUVs, compared to the US.

I have finally put two and two together, and now realise that the large amount of air and the direct path to the turbo make "air path routing" much more important for diesels, hence the common use of snorkles in OZ, perhaps.

I am sure ED will have something to add to this!

DarbyWalters · **Posted:** Fri Oct 26, 2007 2:31 pm

gmctd...that is not really that hard looking at it. If I made the next grill opening over the intake and then snake it down where I have the "catch" now and then back up...it is doable. Will have to test fit something.

It is still too early to tell...but...this little change has bumped mileage up a bit...I keep track on www.fueleconomy.gov of every fill up and since the air duct I have gained about 1mpg...like I said it is still too early to tell but it is looking good.

Cowcatcher · **Posted:** Fri Oct 26, 2007 2:44 pm

This is what I was thinking but a little more stylish, maybe fiberglass. This one is on a 2.8 CRD:

gmctd · **Posted:** Fri Oct 26, 2007 6:01 pm

Yep - wish I could get more hands-on with ours, so I could do more than just sit and kibbutz - but, #2 son has apparently come to the realization than I've quickly become quite comfortable under his, with the hood up and the wheels off the ground - or, maybe he's noticed that I always refer to it as 'ours' - familiarity breeds comtempt? - absence makes the heart grow fonder? - possession is 9/10ths the law? - don't fix it if it ain't broke? - what? - I'm a good person - I been a good parent - right?.........................

I'll try to get some pics of the 6.2 stuff, soon's I learn how to use this digital camera - if it's got any more than a on-off switch and a volume control, I'm sunk...............

For Those who have done the Air-Box Mod

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