I read where several of you have removed the foil covering between the air intake opening and the inside of the right or passenger side fender on the 2005 d-max. I just modified my stock air box by cutting away the portion facing the grill side in hopes of opening things up a bit for some cooler air. The foil covering is completely covering two fairly large holes that could provide additional air. I removed the foil, however, I am wondering is there any chance during heavy rain that water could blow in around headlights and into this new opening. Has anyone had any trouble with water getting in this area once the foil is removed???

Thanks, Hooky

I removed mine on my truck,and no probs at all. I even went and bought a gas motor air box witch draws air from those 2 holes. Gained 1.2 m.p.g. better.
Go ahead and do it its not ganna hurt anything,like i said the gas motor sucks its air from there.

Hey 04llygmcdmax: Thanks for the info. Can you provide more info on the gas motor airbox??? Where did you get it? What type?? Did it require any modifications to work with the dmax? Could you send pics to mphooks@isp.com.

Thanks.

hooky, look up oilbrnr in the OH threads, sevral have done this already. pics

Tried to find pics with no luck. Way too many posts to navigate on dial-up connection.

I kinda did the same thing to my truck, I didnt worry about a little water really becuase if anything it will help your diesel.
I talked to a buy who cut his intake tube about 4 inches from where it enters the engine, then placed his filter on right by the engine, good idea or bad idea??

I too removed my foil and then swiss-cheesed my box. Runs good now, a little bit faster spool up too.

Ben

I kinda did the same thing to my truck, I didnt worry about a little water really becuase if anything it will help your diesel.

A little water will help your diesel????:eek: Did I miss something????

Well a little water in engine as fas as water injection is good. I have a aquamist 2c system on my turbo gsxr 1000.
A little water on filter as fas as getting it wet and it doesn't flow as much air when wet is bad.
Cutting the intake pipe short and sticking a filter on it would in theory get better air flow, but now the filter is right on top of the engine in the middle of a bunch of hot air. Bad.
I just in stalled a afe stage 2 kit with the pro gaurd 7 filter on my new 2005 lly. I saw the two indents in the foil and pulled the foil back a little. I took a razor blade and cut the holes out in the foil to try to get it a little more cool air. The afe seems like the shrouding around it should do a good job to keep the hot air from the engine bay out and let the cool air in from the front and the side of the fender.
I looked at it for awhile and it does not look like it would be possible for water to get up in their. Changin out the box to one that pulls its air in through their sounds like a good idea. The pics I have seen of the volant cold air intake on ebay looks like it only pulls air in through the fender also.

I removed the tin foil yesterday, and the holes that I seen were not that big , but I guess I will wait to see if there is any difference in economy/ performance:D I would love to swiss cheese the airbox but, I don't want to void anything:(

JLew

I've been thinking of doin' the swiss cheese tango on my airbox. But as screamin' j says, warranty issues may arrise. How about it, Ben? Any word from the dealer there in Miles about the mod? Or have they even noticed it yet?:cool: One of the first things the mechanic at the stealer did to my pickup when it was in for an early recall was to remove the original airbox and install this new one like '02's and up have. He then applied the foil-fix to the fender. Claimed it would keep out water. And that's a good thing. Here's why: I work in a power plant where power is produced by a steam driven turbine generator set. Water induction is the worst thing you can do to a turbine, followed closely by induction of metals and debris. Known as impingement. Nothing but dry steam... or in our case, dry/clean air. I even pitched my expensive K&N in faver of the stock paper element. If you still want to admit air from the fender area as was orginally designed, then the swiss cheese tango would allow heavy droplets of water to fall out of the air stream and hopefully not soak/saturate the air filter element. A better idea my be to look at the aftermarket airboxes that provide for better filtration (first) and if then, more airflow. Keep the water out. Keep the junk out. The turbo (and your wallet) will thank you. So, I guess that's my little rant.:blahblah: Thanks for listening.

BB

You are correct here. Water is ok in small amounts as long as it is atomized. Droplets and drops can damage sensitive parts when they slam into them at 900 cfm. (impingement)

Ed

The original fender snorkle came out and the aluminum patch went in because of numerous cases of water intrusion from the fender. The problem was soaking of the paper filter element that increased restriction while weakening the element and filters buckling and being sucked up into the intakes and turbos (ruining the MAFs on the way). Reopening the hole without a snorkle may not be as great a risk, but I'm leaving the aluminum tape on mine.

I've seen pictures posted here where someone has run a cold air duct up into the bottom of the airbox from behind the air dam/ fog light area. Heavier water droplets should have a difficult time traveling the path to the air filter. That looked to me the best alternative to the swiss cheese tango. Just my $.02.

BB

So if I have cut 2 larger 3" circles out of my air box (front towards the grill and the other towards the rear) the service dept could make this an issue?

I don't think I've ever heard of any service department raising an issue with a modifed OEM box. They will give you grief about an aftermarket oiled filter (MAF issue) and you might have a problem if you suck up a filter.

I don't think I've ever heard of any service department raising an issue with a modifed OEM box. They will give you grief about an aftermarket oiled filter (MAF issue) and you might have a problem if you suck up a filter.

When I bought my truck a few months ago, the aftermarket dept tried extremely hard to sell me a Edge/Juice, K&N intake & Silverline exhaust for my truck. He was telling me how the GM and everybody else there ran those on their diesels. The guy never mentioned anything about warranty issues until I asked, then he hesitated a little and said the Edge/Juice & K&N will most likely void my warranty. I find it very interesting that they'll do everything they can to sell you things that can possibly void your warranty. If that's the case, why are the dealerships endorsing (and pushing!) these products? If they're going to push them and sell them, they should warranty any damage they might cause!

After thinking about what the aftermarket guy told me for a few days something came to me…….He was saying how the GM runs the Edge on all the Diesels he demo's (guess that’s the benefit of being the GM, always get to drive a new vehicle). So, whoever buys that demo vehicle gets a truck that’s already been ran with an aftermarket programmer, hope the GM goes easy on them! That scares me…..

Ok, Im done with my rant…...

:rant:

Someone needs to design a cold air duct that is really cold. I'm wondering if somehow an air conditioner could be modified to connect to the air intake.I don't know if it'll make enough air to be effective but it would be cold enough.

Unless, of course, it's a Denso compressor... hee hee