http://thirdgenmods.firebirdv6.com/coldair.html

Would the homemade intake really be better than an SLP intake?

 

i made that intake for my 3.1, it works pretty well, not sure if its better than the slp one, but its better than the stock one

 

i made mine. well kind of.

I just went to pep boys, got that flexible pipe to do your CAI...

The 3" one, with the 3" filter. spent 48$ and it was a breeze to install. But, i had problems with it moving and puttin gholes in it on the alternator and such, so i have it held down with a bungie cord now.

 

if you have the multiport or tpi intake that makes a V i have custom ram air that i make. they go directly under the stock air filters. for the third gens ive found that this is the best way for ram air other than the aftermarket functional hoods. the one you have pictured and also the "cold air" kits ive seen where the cone is where the battery is..its more like hot air intake! here is my set up...take a look...if you like i can make!http://www.flickr.com/photos/24427198@N07/

 

For $60 vs. $299, I think the homemade version is a much better bang for buck mod for a 6 cyl. but you may have more disposable income then I do.

 

it was really simple my way, just make sure you mount it so it wont move or you will be patching holes lke i did, i actually made the mistake twice and now have two holes patchd, the tube is only 20$, i should just replace it

 

Yeah, the way it's done in the picture below is really one of my pet peeves:
Does anyone who does it that way REALLY think that they're doing themselves any good??!? All that he's accomplished is to spend some money & add a little bit of weight to the car!

When I did mine, I found enough room behind the evap canister to run a 3" pipe down through the metal tray that the evap sits on & through the metal panel beneath that. Capped the pipe with a cone-shaped K&N & haven't had a single problem with it! It's protected from water/splashing by the vertically-oriented metal all around it, but it's got DIRECT access to all of the outside air that my engine could ever want!

Yes, to do that requires some cutting & fabrication - but, since I've wrapped as much of the intake tract as possible in insulating tape, I'm confident that my intake charge is at LEAST 20-30 degrees cooler than any system that's still inhaling under-hood air...

 

Its not very effective if the filter is in the warm engine bay. With the CAI you must relocate your battery and cut a hole in your car to put the filter out in the free flowing cooler air. My advice is to gut your stock air box and buy, or make something like Hawks Ram Air Box, which hides behind your fog lamps to bring air to the filters. Or do a CAI with the filter outside your car. Just my

 

homemade..dual cold air...light weight (aluminum)...15 min work...under $10. wont really help those who want to keep fog lights, i dont use them anyway. if spend more time im sure it would come out better., also easy to remove and return to stock if necessary

 

This is the really cool Dual CAI from SLP I had on my 86 Trans Am.
Air is sucked in from holes in the air boxes that match the holes in the fender.
This system requires the battery to be relocated and only bolts up with no mods to
a Speed Density setup (no space for a MAF).


On my 88, I just added a large cone filter in place of the Stock Air box.
The air inlets on my hood direct air to both battery trays, supplying my filter with cold air.

 

I like the look of the stock intake, so I made a ram air intake and just cut out the plastic under the air filters

 

These guys are right, the first posters' example is of little value compared to the SLP kit. The PVC system shown is NOT a CAI at all, (cold air system), but simply a low-restriction hot-air system. Anything collecting air from the engine compartment is going to make a lot more noise than power. The cool air is where the power increase comes from, not a low restriction air filter.

Also, depending on the grade of PVC pipe you use, it will also degrade and warp from the heat coming up from the radiator, so make sure and GLUE THE BEANS out of your system, or over time it will start bypassing the filter and sucking in dirty air. To say this will hurt performance in the long run is a massive understatement.

Often in life, you get what you pay for.

TA

 

Thanks for all the advice guys. This is what I went with:

Not the best, but it was a vast improvement over the stock intake.

 

Not a good picture. But I made mine out of 4 inch pipe. I just flattened it down by the throttle body.

 

I made something very similar to that for my carbed 82, I had the scoops going from in front of the rad, using the stock intake and went into a big k&n round element filter at the carb. I ended up having to disconnect the intake at the filter housing as the stock intake portion that goes over the rad was so restricting i lost 5mph at the track

However it CAN work on slower cars, my brother gained almost a mph when he installed it on his 305.

 

Looks pretty, but you've only achieved a low restriction /HAI (hot air induction)....Your sucking in hot underhood air.

Cut a hole down through the tray under your filter, mount your filter on the other side, an build a splash guard to protect the filter from direct water....THEN you've got CAI.

 

not to mention the fact that pvc is only safe up to a certain temperature, once you melt pvc it starts to release dioxins which if breathed in kill you. hence pvc is polyvinylchloride. abs is alittle safer, but can also melt releasing some flammable and volatile chemicals

 

i think ill just save my money and buy the actual one for my car >.< even though i went cheap and bought my car itself for 500$

 

Did you just knock the bottom out of the stock box, cut out the front air dam and put in HVAC turn-downs for ductwork?

 

doesn't the ram air in front of the fog lights act negatively by restricting air to the radiator?

 

YES

Especially if your on the edge, Hot climate, Heavy traffic.
Our cars were designed to take rad air through there as
well as under the front.
Also driving in the rain and or behind another car not to
good on filters. Although alot of our cars don't see that
heavy rain time.

JMHO

Later

 

haha, sound slike ill stick to the stock setup

 

Just cut out the baffle under the filter area.
Then you can cut out everything under the filters if you
want.
Another reason to go this way is if running a second
trans oil cooler in the front like I am, the stock air
deflector directs cool air right at where I have my big
tranny cooler mounted.
Although your not running AT, would do the same thing
if running a engine oil cooler like I am on the other side.

Keep in mind also that the reason they put those deflectors
behind fog opening on our cars was to take in cool air
to the rad.

Just my two

Later

 

very nice, I bet your car runs really well

 

Here is the one I made for my 2.8L using mostly Spectre stuff. I cut a 4" hole where the canister used to be and mounted the filter below. After this pic I clocked the MAF so it wasn't touching the radiator hose.

 

So can anyone give me a picture or at least use some imagery to explain to me if there is any way to make a CAI without reducing flow to the rad (theres alot of traffic around here) AND not letting water in? (it literally rains 9/10 days here).


also, what is the restriction in the stock LB9 intake? Because i think i can open up the visable intake part that goes over the rad, but I don't want to cut out those baffles below the filter for fear of water. But i think both the baffles and the intake are restrictive.

 

Those two posts above you with pics are nice clean ways
to do it and look proffesional.

On mine have everything below the filters cut out and
been caught in the wet a few times and no filter problems.
Heavy rain and speed probably would.

Battery in the trunk or cannister delete areas would probably be the best.
V6 gives you alot more room to play with then V8.



Later

 

Here's what I did.........

https://www.thirdgen.org/forums/auto...-air-pics.html

https://www.thirdgen.org/forums/tpi/...pi-camaro.html

 

The SLP intake is not worth the $$...

 

did you have to by pass the line goin into you valve cover for the intake tube? i want to make your setup so if you dont mind could i have a list of the things you got

 

alright i have a 89 tbi 2.8L camaro, which would be better for cooler air and better flow? to cut out the bottom of the stock air box or to build one of these fabbed up intakes? and if the intakes what parts do i need to make it functional?

 

Your '89 2.8L is multiport injected (MPFI) not throttlebody injected (TBI).

I had already gutted the stock airbox when I decided to do the CAI. To be honest I only did it 'cause I like the way it looks, I didn't notice any performance gains.

 

how much did it cost to build the CAI and what tubes and clamps did u use to make it?

 

reviving, i was looking at places were you could mount an decent working cai and got thinkin of doing this. expect doing it were the battery mounts (on v8 cars) since if you relocate the battery then you arent dealing with the charcoal canister. Could you possibly tell for me if the filter you have on now would fit where i described before? im thinking of doing it if it wont require any cutting.

 

everybody says that if you have the stock snorkel set up then you need to gut the air box and its better than any aftermarket intake set up because you get cold air vs hot engine bay air.. so I recken that the stock set up is better than my home made single intake..?

 

Do you happen to have the K&N part number for the filter?
By chance is it K&N E-0890?

 

Its not a "cold" air intake if its sucking in air from the HOT engine bay. Thats half the power gain right there, so if you do this, seal that thing off with a box or foam or something.

 

here is my real cold air intake!

the air filters are about 4 inch from the ground under the car.
i cut some 4 inch holes in the battery area left and right.
i finished it with some door rubber around the sharp metal.

it looks very profesional!!

here are some pics.
the intake ont he top of the carb is from Spectre,just like the air filters to.

enjoy:

Before:





After:







thanks for the comments.

 

2 words...BAD...***!!!!!!!!!!!!! have you noticed a huge difference compared to the original location?

 

thanks,

the sound is amezing...... it sound`s like a nascar wen you hit the throttle.
al the people look scared to me hahaha.

there is a big difference for sure.
the air filters hanging 100% in cool air.
and it looks nice also..
dennis

 

So I understand the air coming in up to there..... Hell it's wide open that's a no brainer. The tricky part is from the filter on. How do you open up that plastic "V" piece to allow all that air in? That is the bottleneck.

 

this is how i ran mine. it is combined with a cowl induction fan mod.

 

this fan thing, I have never seen one before, so where did you get it? or did you fab it up from something?
fill us in on this cowl fan.

 

that is a stock cowl induction unit from a 82-84 carburetor car. i cut it out and installed an oil cooler fan into it so it would be functional with a TPI car. i also added some lights in it as well.

 

Now that is totally awesome!

 

How are you keeping the water out?? I love this setup and plan to do it on my carb, but thats one problem I keep running into is water in the carb.

 

This is what I did, keeps everything quite a bit cooler:

 

this worked VERY well and looked great. Air filter was behind fog light area

 

Made mine out of 4" Drain tubing from home depot, Cost me about $7

 

Hello all,

I read a lot in threads like those to get an idea of what cold air intake works the best for performance and nearly stock appearance.
Took a while to make plans about it and to modify all the parts that it fits together, but now its finished and I´m pleased. It´s not the wheel new invented, but it works pretty decent in my opinion and cost me not much, 20-30$. Never saw that kind of intake ducting here. Attached are some pictures to give you people some ideas to maybe work on your own? Behind the heat shield is a 90° elbow directed downwards. If someone is interested I can list some more details.

Greetings from Germany,

Chris


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