I'm going with 3" pipe from my MAF sensor,over and down thru the battery tray area where the charcoal cannister sits and curving back toward the nose with a K&N cone filter on the end. I'll have to relocate the charcoal cannister over closer to the radiator. It will pick up outside colder air from around the foglight and that area where the filter will be is boxed in under the car by part of the fenders lower ground effect so it will not get any rain or water from puddles up into the filter.
What should I expect from this mod,maybe 5 HP? I know I'll be able to hear the motor sucking air but will I notice any SOTP diff.
Also the Iroc/Z's were rated at like 10 more HP than the TA/GTA's because of the dual filter air intake as compaird to the Birds that had to suck there air thru a box with a cylinder filter. I'm not going to actually see a 10 HP gain from this mod will I.

 

You should see some improvement in seat of the pants, but it seems like my main benefit was not losing so much HP when the engine gets warm.

 

I added a dual snorkle and an IROC "y" pipe. The "y" was worth about 10 horses (I happened to dyno the car). I don't know about any improvement from the dual snorkle, because it was a hot day, and the car, just sitting on the dyno, doesn't get any air forced into scoops, like it would on the road.

A SOTP improvement? Not for me.

 

it doesn't get forced air on the road anyway...so that's a perfectly good test and explanation.

I'm surprised that the stock bird box is that restrictive.

 

How hard would it be to custom fab a dual CAI like this?
Keep in mind my crappy 'chop skills

Then the tubes do through the trays on each side and come out in front like this:

The pink dots represent the fronts of the K&N cone filters...

 

as hard as putting in a T and making it twice.

but its not necessary. I nice big cone K&N outflows your average built up motor anyhow.

 

Wont work, steering box gets hit.

 

Both sides will go through the 'Battery Trays' on each side, not where the steering box is.
I just suck a photochopping

 

Yeah you could do it....there's just no reason.

 

I ended up just running a section of 3 1/4" pipe down thru a 3 1/2" hole in the battery tray with a cone filter on the end of the pipe. I painted the pipe black and reused the factory hose that ran from the MAF to the top of the air box but now connects to the pipe insted of the air box. I removed the plate the airbox and vaccume cannister bolt to and mounted the vaccume cannister a little closer to the radiator. It gets PLENTY of colder outside air.
Plus it's black so it blends in well,not your thing if you like the bling bling of a big shiney pipe running accross the front of your motor.Best of all, It cost me less than $25 and does get colder outside air unlike a lot of cold air kits that cost twice as much and only put the tip of the filter in the fender.
Dual inlets are not nessacery unless you just wanna do it for looks.

 

That sounds cool! Post pics!
I just like symmetry in my engnie compartment I guess

 

does the filter sit beneath the sheet metal the battery tray bolted to? I considered doing this but i was afraid of water getting sucked into the engine...

 

what is the tubbign made out of

 

My battery is on the drivers side and on the pass. side there is a kinda raised plate that bolts down and my lower airfilter houseing as well as the charcoal cannister is bolted down on top of it. I unbolted everything and removed the air filter houseing.

With the charcoal cannister I had enough slack in the rubber hoses to move it over by the radiator and let it set out of the way. Remove the bracket that attaches to the MAF sensor and secures it to the fan shroud,you will no longer need this.

With the ribbed rubber tube that runs fram the MAF to the open end that did connect to the top of the airfilter houseing,hold that open end over the now empty battery tray area and keep an eye on how close the MAF is now to the AC pulley. use a 12" ruller and run it dow from the center of the tube opening down to the battery tray and with a black marker or chalk if you have a dark colored car, make a mark on both sides of the ruler where it contacts the battery tray,thats going to be the center of the hole you need to cut. My pipe is a polymer plastic like PVC but it's 3/8" thick and its grey not black or white. I'll see if I can find out what grade and what the stuff's actually called. I used a piece around 12-14" long.

I used a plasma cutter to cut my hole but it can also be cut with a holesaw made for cutting metal.Make the hole is 1/8" bigger than the tube and when you assemble it all you'll have a 1/16 gap all the way around the tube.Fill it with a bead of clear silicone.

Once the hole is cut position the Charcoal Cannister over closer to the radiator. You'll see a raised area of the sheetmetal thats a little over 1 inch wide that runs front to back. It's where the metal is higher than the sunken in area of the battery tray. The Char. Cann. has two little metal tabs comming off the bottom on each side with a hole in them. mark your spots and drill pilot holes then use screws thru the metal tabs to secure the Char.Cann.

Clamp the ribbed rubber tube to the pipe and slide the pipe thru the hole. With the tube at the factory height mark the pipe where it go's thru the metal and remove pipe from car and add an inch to the length past the mark you made and cut the pipe there and you have your length. Paint pipe and reinstall this time with the clear silicone filling the small gap around the pipe/hole. Let the silicone cure before clamping on the filter. This will firmly hold the pipe and still allow for a very little flex without fear of the edge of the hole cutting into the pipe over time.

Once silicone cures and your ready for the filter,cut your wheels to the left and remove the inner fender fastners on the front half only. You can now lift the front of the fender liner and get the filter in and slid on the tube. and useing a med. flat screwdriver,tighten the clamp.For piece of mind if your worried about the clamp loosening up and your filter falling off going down the road. Sparingly wipe some silicone around the end of the tube before slideing the filter on. It will also make the filter slide on easier.

I had my car painted about 6 mths. before doing this mod and noticed some light sanding dust still ,around the area where the filter is so I don't think you have to worry about water getting to the filter. The only way water could get to it would be hitting a DEEP puddle and your going to really bottom out the front of your car first.Also almost forgot. There's a small brace under the battery tray where the filter go's. If it happens to be in the way of the filter it can be unfastned and moved a little and reattached.

Don't use 3in. pipe,it's too small. The ribbed rubber hose will not fit as snug to it and it will look kinda odd.
Looking from the front of the car, you can't tell it even has a CAI on it. Bird guys will notice the MAF not attached to the fan shroud and that the Charcoal cannister has been moved but to the average joe nothing looks out of the ordinary.

I hope this helps anybody that wants a CAI but doesn't wanna pay the high prices for a kit that still keeps the filter in the hot engine compartment.

Once Santa brings me a digital camera
I'll post pics of my CAI and the STB I made.

 

does anyone have any information on how to set up a CAI for carbed models w/ the original breather set up i think i have an idea how im gona do it but would like a little help and or info thanks.

 

What I did in the past with a 85 TA I had was I made a dual snorkel air cleaner and I actually noticed a SOTP difference as compared to the single snorkel setup.
You'll need an extra aircleaner houseing to swipe the snorkle off of and an extra ribbed elbo and air duct and you don't half to have the hard to fine air duct made for the pass. side.

If interested I can tell you how to build it.

 

that would be great i need all the power i can get out of this motor until i can afford to get a 350 built or buy the 79 t/a im lookin at. i was also thinkg of a way of routing an air duct from the breather down the left side and fab up liie a box under the front of the car mabey like 24x2 or three get what im sayin kind of like a ram air/cai setup. oh and how car i relocate the canister

 

thanks for the detailed info, a pic would be nice...on my 92 t/a the area under the battery tray is open to water splashing up from the road,and the fender liner would not have to be involved for the install either...i cut the hole you suggested and looking down from in the engine compartment you can see the ground (and a small brace) i'm not sure about the difference between our cars...???

 

My ground effects on the lower front fenders extend under the car a good ways protecting the filter. There's still an opening under there closer to the nose of the car but the water would have to go up thru the opening then back a little ways then up to the filter.
In order for water to get to my filter,i'd half to be going pretty fast and hit some DEEP standing water or a deep hole.

 

Mine is the same/similar to yours. The amount of water that gets on the filter is minimal though and unless you go through flooded streets (dumb anyway), then you should be totally O.K.

I've had mine on there for almost two years now without any problems and I drive it every day (drive across the country too when the job demands it). Time to clean my filter though... YIKES!!!

Some pics I just took for you...

 

thankd bnoon, those pics look like my setup...

 

Here is approach I used

 

man THATS the setup i've envisioned...i dont have access to welding equip so i was thinking of using tin and fabbing up a box...looks great!...is that a superram intake? also did you remove a lot of material where the cannister was so air could get in?

 

Yes most of the battery tray has been removed. I am also pulling air from the fenderwell and behind the headlights.

 

that thing looks like it would flow some air...did you ditch the cannister?

 

I have a camaro so the canister is on the drivers side and the battery is in the trunk

 

ok thanks also thanks for reminding me how to spell canister

 

WOW! Now that's a nice cool air box! Impressive!

 

i have cut out where my vapor canistor sits and actually just added a 3" pipe to my factory piping so my filter sits below engine compartment. I was wondering if anyone is interestedin making me a custom setup for my intake. 88 350 TPI trans am GTA. I am willing to relocate MAF (obviously) and make any other adjustments. I have access to torches but i do not have a welder. looking for 3" pipe from a BBK 58mm TB to MAF - then from MAF to filter. Thanks. fst2qtrmile@yahoo.com

 

you would have to put the MAF right infront of the throttlebody.

ALL the air entering the motor needs to go thru the MAF. if you double the pipe, then you would need to attach the MAF after they come together.



im doing a intake similar to all of thoes with my LS1 swap... basicly a 90* over, MAF in the straight, and a slight bend where a K&N is mounted thru the "battery tray"