Write-Up: Modified Air Box CAI

Im not tryin to fool anybody, but I did something similar...






my goal was to get all my air from the fenderwell and none fm the engine compartment

uhhh... or is that wheelwell??? idk....

Here is my setup. I wanted to keep it original looking so people think I'm running stock.. (hope the IC, headers, and tiny pulley doesn't clue them in) It's not the prettiest thing but it draws plenty of air front the fender and keeps the engine heat out...

Yeah Eric, my biggest concern was cutting into that piece of frame under the box. right there where your finger is. First i used a 5 1/2 hole saw and then took a litle more (the square shape)out.

Correct me if Im not understanding you right, Bill and Easher.
But if you dont block EVERY air hole on the clean side of the filter- YOU WILL KILL YOUR ENGINE W DIRT. If you put a filter at the bottom of the box you will have to seal off the stock airbox inlet.

I forgot t put these pics in there.
First I cut the box...

Then with the box in there, I traced it, and then cut the trace.

Eric, I'm surprised that flat panel hasn't folded in half under the amount of air flow your engine must pull. K&N must flow pretty well!

hahaha... I was trying to show the size of the hole in the photo that had my hand in it but it dosen't do it justice. It flows just as much air as the 4" short intake I had on. Keep in mind I removed the back of the stock airbox too so it draws not only from the bottom of the fenderwell but the side too. On my setup the limiting factor is the size of the TB. I am happy with the K&N but then again I haven't tried any others.

curious riv wrote:

I forgot t put these pics in there.
First I cut the box...

Then with the box in there, I traced it, and then cut the trace.

I just did this same thing this morning but didn't block the side hole like you did.
I am going to do that as it makes sense.

I used a dremmel tool and about 10 cutting wheels to get through the metal.

The stock look is great and you can hear the S/C much better now.

The sc sounds great on mine now that ive done that...
Now I just gotta replace the coupler- it'll sound better

OK... I have consulted with my mechanic... what I am going to do is install a ram air scoop like has been done with some of the FWI's, but it will have a 4" hose that will go up into the bottom of my air box.
I am using plastic flex drain tube that I got at Lowes Home center.. ($4) and a dryer hose coupler on each end to hold the tube... ($2)
I fabbed my own scoop from a piece of 6" corrugated drain pipe that we will mount below.

The plan is to remove the airbox, cut it and mount the dryer hose coupler under the airbox. Then mount the scoop to the bottom (under car) panel and mount the other dryer coupler to the top of the panel. Then just connect the hose on both ends and.... viola..... no warm air from engine bay.... no pulling panels to change/clean FWI filter.... Just replace panel element in std airbox! I am getting this done on Monday, will upload some pics...

I also have similar set up yet to be installed.
I planned on doing the fresh air duct installation along with the FWI when I install my Gen 5 and N* TB.
The only difference is I have a 3" hose and a NACA duct that I will install into the lower plastic panel.
The NACA duct allows for a flush mount air inlet and increases the velocity of the air by design.
The NACA duct was originally designed by aerospace / aircraft engineers for use in aircraft where you need to keep the surface smooth without anything protruding into the airstream. It has also been picked up for use in the automotive racing industry. You will notice them for example installed in the Plexiglas windows behind the drivers window opening in NASCAR for various air intakes.

Well, I will let you know if i can feel a difference. I am quite sure I will hear the difference.

Bill and Rickw, if possible please post any pics and helpful info regarding your mods. It may help me out some day.

Bert

Will do, the camera is in the car waiting for Monday 8am EST.