The Zoodad Mod
Have a great weekend at the beach. Wish I could go. I am about ready to choke a couple of engineers and the swing shift supervisor and his crew of boneheads along with him. I am working straight through to next weekend so I guess I am stuck with this idiocy.
Have a great weekend at the beach. Wish I could go. I am about ready to choke a couple of engineers and the swing shift supervisor and his crew of boneheads along with him. I am working straight through to next weekend so I guess I am stuck with this idiocy.

My guys spent all day reworking jobs that his crew screwed up last night, much like we do every other day. Makes it hard to get ahead and stay on time with the production schedule when we are constantly cleaning up after others.
It's a free modification to your truck. A dremel and a good steady hand. 2" X 2" oval hole.
Diane
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Gene.. Duct tape...? Nooooooo...

First, I've always had a Zoodad since day one, I just didn't know what to call it until I joined this site a year ago. By that I mean when I raced my sports car in the 60's I employed various bodywork modifications to get more air flow into the intake, the brakes, etc... So when I bought my truck and started setting it up for fulltime towing, one of the first mods I did after I got my free TSB upgrade to the 99.5 air box in Nov 99 at Spike Ford in Mission, TX, was to cut the hole shown here Click for full size image to get more air into the intake. When I picked it up from the dealer, I couldn't believe my TSB update had been installed correctly because the inlet was so blocked closed by the radiator shroud. The Ford tech showed my a brand new truck that was the same way, so that started me thinking about how to get more air in there.
Then I ran the infamous K&N cone for 30K before my turbo blew, and there was a wide gap between the Zoodad hole and the cone, and I could see just how many bugs were coming through that hole! So, when I installed the AIS I configured the baffle shown here Click for full size image to keep the bugs and rain out. I'll admit was ugly, but it did serve its purpose.
Then I started making under the hood temp measurements with this Click for full size image and saw just how hot it was getting, and decided to remove the ugly baffle to get more ambient air under the hood and into the intake. Then I installed my air flow gauge shown here Click for full size image and here Click for full size image and at highway speeds, I was measuring a 1" to 1.5" H2O RAM air effect at the downstream side of the AIS element. I wanted to confirm if this was real, so I duct taped a cereal box lid over the Zoodad hole shown here from the rear Click for full size image and here from the front Click for full size image . Yes, I was in a hurry, and got the lid facing ugly side out.
Multiple measurements with and without the lid in place confirm a considerable RAM air effect, which is one of the reasons I recommend an AIS versus any type of under the hood filter. And that's my story, and I'm sticking to it. BTW, what was the date of the "official" Zoodad hole, compared to mine which was done in Nov 99?





