I took Dave B's idea of using the stock airbox and disconnecting the resonator that is underneath of the battery. I found some old shop vac hose that I had lying around inside of my house and began construction. I also found some of the shop vac tools as well. So for now, I duct taped one end of the shop vac hose to the "Y" to where I disconnected the resonator. Then I ran the hose down and around the lower splash guard of the car. After this, I used the wide hand tool and cut a slit in the lower splash guard. To attach this, I just cut the convoluted tubing of the shop vac hose, put it under boiling water and worked its way onto the wide hand tool. The wide hand tool acts like a ram air device as it collects the air from all around and from 20 MP+ it is definately getting air rammed into it. I used some wire ties to secure the thing in place. Its still rather rigged on right now, but it actually is not that visibally noticeable. The good part is that the motor isnt loud as ***** like it was before, cause I like quiet cars, and also the car definely seems to pick up better. I was driving down the road and i nailed the gas and it just stomped the tires loose... then hitting 90 MPH was done in almost no time. I'll get some pictures, and if I install the stillen lower lip, I'll have to see whether or not it gets in the way or not. But I'm so far very happy with this, it doesnt look too tachy cause you can't really see it, but it is definately effective. I can see this being a benefit in the summer time when its 110 degrees outside and most the intakes are sucking in even hotter air from underneath the hood. I thought about having water lock problems, but to be honest, I think it would be very very hard for the water to be vaccumed up into the engine. Just by the way the hose is routed and the setup of the stock airbox, also how the stock ram air scoop is also functional. Best of all, this cost me $0.00. At my 60K service, I'll find a K&N panel filter so maybe it'll make more difference... But now I have a K&N cone and adaptor sitting around.....so far very happy with the result.

 

Eric-

I'm glad you like the setup. The 2.5" vacumn hose I bought from Sears actually pops right into the resonator elbox. I used a tiny amount of silcone sealant to secure it. Mine looks completely stock from the engine bay amd you can't see the lower intake pipe under the bumper unless you get on the ground. I love telling people my Max "just has some exhaust pipe work with the stock muffler"

The reason this intake works pretty good is because the factory intake is already a good setup since it pulls in cool air above the radiator. Adding the lower pipe only increases the ram air effect. The stock intake problems lie in the resonators. By removing these, you can really increase the flow. The other great thing about this setup is that the airbox becomes "pressurized" at speed and allows for a very strong initial burst of acceleration. If haven't already, remove the resonator between the throttle body and MAF. I was lucky in that my old HKS intake had provisions to get rid of this resonator. Call Place Racing and get the part that comes with their CAI. It costs about $60, last I heard. As for the filter, K&N is always a good choice, but according to the F-Body guys and dyno reports, Fram filters flow just as good.

Currently, I'm working on a scoop for the lower intake hose. I'll be track testing this Sunday and dynoing again in about 3 weeks so we'll see what happens. Like you said, in warmer weather is when this setup will really do nice.

Dave

 

can you post some pics of what this looks like...

 

Hey man I am evry inteterested in this setup........the pressure that stays in the box is perhaps a very good thing meaning that u don't have to be going fast to feel it........post pics.........so any hardware store? 2.5 inch vacuum hose? How much does this stuff run?

 

I did the same mod (great idea, Dave), and it is actually very noticeable. I, also, added my own little work to it. I used a 3" flex tube that I got from Home Depot, and used a 3" into 2" rubber coupling to fit that to the intake y-tube. The bottom is fit into the splash guard (cut hole in guard and fastened it with a 3" rubber coupling, and screened off, to keep rodents out ) My next plan is to make a better scoop. Here are some picts.

<p><img border="0" src="http://www.gofishguys.com/images/andy/airbox1.jpg" <br>
pict from left side of stock intake runner</p>
<p><img border="0" src="http://www.gofishguys.com/images/andy/airbox2.jpg" <br>
pict from right of runner (notice the rubber coupling)</p>
<p><img border="0" src="http://www.gofishguys.com/images/andy/airbox3.jpg" <p>

[Edited by selle on 02-06-2001 at 06:10 PM]

 

Check the 5th Gen forum and search for threads that have OSCAI in them. There are pictures and a lot of discussion about this mod.

 

i have a quick question bout your install. I'm currently doing this project also but i can't seem to find any room to put the hose. When you say splash guard is it the one behind the front tire or are you talking about the plastic panel directly below the intake tubing. As far as i can see there is almost no room to get the open end of the tubing outside. also, how did you get the resonator under the battery off? I see the one bolt under the fuse box but I can't see any other bolts.

 

You don't have to remove the resonator itself. Just bypass it by removing the L-shaped tube.

 

i pretty much did what everybody else did (3" aluminum tubing, 3" to 2" coupling) but I couldn't find any place to access outside air from the engine compartment. So i just flattened out the end of the tubing and fed it out through the thin opening in the apron at the bottom of the engine compartment. I pointed it toward the front of the car but I think i'm definately gonna cut some of that apron so the tubing isn't so smashed. Taking it out for a drive i can't say that i could feel any gains but it was nice to have a quiet max again. I guess i'll see if there was any difference when I go to the track this weekend.

 

I ran the hose in between the drivers side fender well splash guard and the undernose splash guard. You'll need to trim a little bit from each of these guards to make the hose fit. I really enjoy the more refined sound my car has now.

The only parts needed is some vacumn hose that serves as the under nose intake and some materials used to secure the hose to the nose and to the elbox (ie glue, hose clamp, zipties).


Dave

 

hey dave. i will be perforimg this mod too. can you take a pic of where exactly the shop vac pipe exits the engine compartment and sucks in air. splash guard? i don't even know where the splash guard is. if you can maybe show me where it is i'd really apreciate it. Also, if i make some kind of air scoop that attaches to the lower end of the pipe will it be a lot better vs. just pipe suckin air. Thanks guys.

 

back to the top

 

as far as i know the splash guard is that plastic sheet that attaches right under the bumper and goes under the front of the engine. if you look straight down from the stock air ducting you'll see it. i trimmed mine at the edge of the splash guard and the wheel well. only problem is that i'm using a 3 inch hose and it scrapes since i have it pointed towards the front of the car. went through 2 pieces of aluminum tubing thanks to parking stops.