1989GTATransAm

iTrader: (3)

With my new motor build up I'm going to need a cold air intake and airfilter assembly large enough to be able to feed a 6.0 liter motor spinning to 7000 rpm with absolutely no restrictions.

I have yet to radius the portion where the air filter will sit.The oval portion on the flat plate. I will be doing a 3/8 inch radius for good air flow. The new airfilter assembly will be capable of flowing over 1300 cfm the same as my throttle body. No use having a 1300cfm monoblade throttle body if the air filter is going to choke it.

Here are some preliminary pictures. By the way this unit will fit on the passenger side in front of the radiator overflow tank.

SLP-GTA

iTrader: (1)

Looks good, Id like to see the finish product. In addition, very nice welds, are they yours??

1989GTATransAm

iTrader: (3)

Regarding the welds I think we have found our new welding shop here in SoCal. His name is Gary Stien and he has a shop in Signal Hill and does very good work. Yes I have a lot more work to do on the CAI.

Basically with all the money I spent on the new AFR 195 Eliminator Competition heads I'm going to absolutely make sure my cold air intake system will be not be a restriction on the heads. At WOT the motor/plenum area will get all the air it wants.

Kevin91Z

iTrader: (1)

Allen, just get a ram-air hood, and seal the vents to the throttle body.

1989GTATransAm

iTrader: (3)

Here is the assembled product. Designed to flow 1300cfm. That will match my throttle body and 3.5" air intake tube. Following my motto of no air restrictions allowed. Some work left to do but basically it will look like this.

Viprklr

iTrader: (5)

I was able to make one out of 4" that also goes through the tray in front of the overflow tank. I just need to find a shop around here that has the nuts to weld up a permanent setup. Mine also flows 1300+.

DarkShark

Looks great!

One of these days, I'm going to revise the way my TPI's takes in air. Yours is an inspiration for me. Thanks!

http://s219.photobucket.com/albums/c...t=IMG_2084.jpg

Orr89RocZ

iTrader: (20)

very nice work. I think my 3.5" system with the 3.5MAF flows in the 900 range and i am thinking its not a restriction anymore since i didnt drastically gain much from it over stock style TPI snorkel. But it still needs abit more fuel in the midrange

that setup you have looks awesome tho

Stephen

iTrader: (12)

Please tell me that sits in front of the radiator, or is sealed off from the engine compartment....

If neither, you've created a high flow HOT air intake.

1989GTATransAm

iTrader: (3)

"Please tell me that sits in front of the radiator, or is sealed off from the engine compartment...."

Never fear. It will be sealed off from the engine compartment. I will take a picture of it installed when the time comes. It will draw air from the fender well, headlight area and the lower trey. Looking at some of the previous photos I need to post a couple of more for clarification as more work has been done.

1989GTATransAm

iTrader: (3)

Couple of more pictures. One showing the baffle to help seal off the engine compartment. The next one trying to show the nice radius entry into the 3.5" air intake pipe.

1989GTATransAm

iTrader: (3)

Two more pictures showing it installed in the car. Next up will be off to the paint shop for black thermal barrier coating.

customblackbird

iTrader: (15)

lol holy COW is that really 1/4" or 1/2" aluminum plate??? lol geez... how much that beast weigh in at? it looks open to the heat of the engine on top tho... so how is it cut off from the rest of the engine?

i second the ram air hood! i got mine and made my own rai air intake outa fiberglass. weighs almost nothing and fiberglass doesnt retain heat

1989GTATransAm

iTrader: (3)

Actually it is pretty light. It is 3/8" aluminum plate. There is an "L" shaped grey foam rubber on the underside of the hood to seal off the top. So when the hood closes it forms a seal along the top to isolate it from the engine compartment. The foam rubber meets with the overflow tank on one leg of the "L" and the 3/8" aluminum plate on the other leg of the "L".

If you look carefully you can see some foam rubber between the overflow tank and the fender. The only area left to seal is the gap between the overflow tank and the 3/8" aluminum plate.

Edit: By the way with the previous setup and same method of engine hot air isolation the IAT temperature was 91F. That is pretty good with the temperature probe located in the plenum.

Edit: The reason for the 3/8" plate was to be able to form a nice radius entry into the 3.5" tubing.

91_Formula

iTrader: (1)

Wow nice welds, much jealousy Neat buildup, thanks for the pics!

GTA Sammy

iTrader: (1)

Hey 1989GTATransAm..... I gotta say that looks SWEEEET!!! Those welds are Fabulous!!!
I gotta ask you though...... what did you do to the canister that was in that corner...? I've been wanting to get rid of mine for awhile now.
I wanted to cut a hole in that corner that puts a CAI behind the fog light. I was even thinking of using both Fog light ports as cold air pickups and vent it to the filter

1989GTATransAm

iTrader: (3)

A long, long, long, time ago I ordered the SLP cold air intake kit. With it came the necessary supplies to relocate the charcoal canister to over by the battery. It is still in that location. Makes for a lot of posibilities with the cold air.

It just frees up a ton of room in front of the radiator overflow tank. I have used foam rubber to fill in the areas leading to the engine compartment so the area should be sealed pretty good from the hot air. Maybe some more pictures are in order.

Dale

iTrader: (12)

man that looks really good! I dont see how you guys do this though with battery locations and such.

If you can figure out a faster way to make that, I bet you could sell several of them.

1989GTATransAm

iTrader: (3)

Thanks all for the compliments. Viprklr that 4" tube will really flow some air. Hahaha. One thing for sure this cold air set up will not be a restriction. It should feed the plenum with all the air it wants.

1989GTATransAm

iTrader: (3)

Here are a couple of pictures showing the relocated charcoal canister. To relocate the charcoal canister to this location you would need the longer hoses and the electrical pigtail extension.

The pigtail would be easy enough to make up as the wire, pins and connectors are readily available at www.eficonnection.com

The charcoal canister is held in place by sheet metal screws. Here are the pictures.

GTA Sammy

iTrader: (1)

Thanx for the pics..... I always wanted to make more room in that passenger front corner now I can see how it's been done. Very interesting!!!!!

Might be worth a try!!!!

FormulaL98

As far as canister placement that is the exact same spot i mounted mine with my SLP kit, also with sheet metal screws. Your set-up is really well done! Now I know what to do when i put in my big motor lol

GTA Sammy

iTrader: (1)

Do you have to take the charcoal canister out to remove your battery???
I've always found the battery to be a tight fit in the first place.

1989GTATransAm

iTrader: (3)

No. It is real easy if the battery has a strap handle as shown on mine. Otherwise it might take a minute.

Fords88Bird

Very good idea and nice Tig welds. Later.

Isphius

my charcoal canister is in the dump. oops. Nice setup tho! im sure the 90 degree bend is more of a restriction than the filter now. Still seems like overkill, but at least itll never be a problem! itll never break either

1989GTATransAm

iTrader: (3)

"Still seems like overkill, but at least itll never be a problem!"

That is the idea. The area was there for the airfilter so I took it.
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Isphius

Maybe this thread is the one you would be looking for. https://www.thirdgen.org/forums/tpi/...tml?highlight=

I have a couple of them posted.

Stephen

iTrader: (12)

You gonna open up the shelf the filters are sitting on, to allow more airflow, or do you think enough air can get through the factory holes?

Eliminating the tray, or most of it, then putting a scoop underneath the car, would increase outside cool air to the filters to take in.

1989GTATransAm

iTrader: (3)

I could open up the tray some. I'm leary of a scoop because of water when it rains. I will have to see what my KPA is at wide open throttle and 7000rpm. Right now there appears to be plenty of areas for air to come into.

The biggest being the fender well opening. There are number of holes behind the head light area. Also some in the tray itself. I think all added up there should be plenty of area.

1989GTATransAm

iTrader: (3)

Here are the final pictures as everything is now complete and in the car.

Orr89RocZ

iTrader: (20)

looking good. I gotta make a bracket for mine to hold it up, it sags abit.

I hope this gives you what you need, it looks nice. over 6500 rpm and 400whp needs some air but it should feed it. Mine seems to not gain much but then again i havent fully tuned it since i made the new air sensor. i got it back to where it was but i think there is more room for power

Definately have to make some ducting or vents to feed it air like i had the TPI style intake setup. It could be the flow of air in front of the tire isnt quite getting up to the filters and just creating a pocket of no flow. We'lll see. Hope to have it on the dyno in a week or two for nitrous runs

1989GTATransAm

iTrader: (3)

Orr, I have no doubt you have some horsepower left in your combination. The nitrous runs on the dyno should be interesting. I know a lot of us are looking forward to the results.

Regarding my cold air intake I feel it should suffice with no air intake restrictions. With my next build I hope I'm above the 100%VE by a few points or more. I have the area around the filters pretty well blocked off from the engine heat.

I'm also progressing on my exhaust termination boxes. Maybe another picture or so in a week or two. My new transmission cross-member support is also coming along. I will have a thread on that when the time comes.

1bad91Z

iTrader: (1)

1989GTATransam -
Have you ever thought of making a dyno run with all the emissions stuff (AIR, cats, EGR), etc... removed to see just how much it's hurting the numbers?

skinny z

It all looks like you should be able to provide all the CFM you'll ever need.
Those of us in the carbed world don't have the same options.
I had toyed with the idea of mating a modified OEM air box ( like 1bad91Z has been building ) to a conventional 14" open case filter housing however I find that even a couple of K&N filters in the stock location have limited capacity.
It seems the best method would be a cowl induction hood with the sealed air box and a 4" tall filter element.
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That will have a lot to do with how well the terminator boxes work. You'll need the effect of the pressure wave tuning as well as your intake mods to get to 100% VE or more.

GTA Sammy

iTrader: (1)

Hey 1989GTA TransAm, the new CAI looks amazing but where the hell is your MAF sensor...??? You do have an 89 like me....

Did you switch to SD?

1989GTATransAm

iTrader: (3)

1bad91z; I don't think I would gain a whole lot by removing the smog equipment. The air does not take much power. Maybe one or two. The EGR does not take any power. The CATS are the new Magnaflow metallic substrate which flow 590cfm each. That will suffice to well past 500HP at the crank.

skinny z; I have the intake length theoretically tuned to 5900rpm and the exhaust will be tuned to 6500rpm peak hp. According to PipeMax the exhaust tuned length is good from 4500rpm to 7000rpm. I'm hoping this will allow the power to hang on in the upper rpm range without dropping off. I'm building the motor and trans to shift around 7000rpm. This will all depend on what the dyno results are. The previous dyno runs looked very promising.

GTA Sammy, yes I have converted the car to speed density. The 1989 model year is the easiest to do.

skinny z

Keep at it. Your results are an interesting read.

Kevin91Z

iTrader: (1)

Our goal is to prove you can make horsepower and torque, get good gas mileage, and still blow clean numbers to pass CA's smog test.

Magnaflow did a test like you're suggesting on a 4-banger a while back. The difference between no cat and one of their regular cats was 2 horsepower. And between no cat and their new metallic cats like Allen is running was 1 horsepower. So even if you double the numbers for a V8 engine, the difference is still small enough where you wont notice it. And most cars will not dyno the exact same number every time anyway, so 1-2 horsepower between dyno pulls is within the margin for error.

1bad91Z

iTrader: (1)

Well in my case, the concern is not only power decrease, but I think cats would take away from how the car sounds...

Here is mine running.

http://www.youtube.com/watch?v=kfLWpAy0c1o

1989GTATransAm

iTrader: (3)

Nice car and sound. Is that a Spintech muffler?

TigerVette

clean looking intake, nice work

1bad91Z

iTrader: (1)

Thanks! It's a spintech 3 1/2" single in / single out

Steveh4263

iTrader: (1)

I have a 87 GTA and a SLP Cold Air Kit and I'm having trouble locating the charcoal canister near the battery and radiator. Do you have to move anything out of the way so the charcoal canister can fit in that tight *ss area? Also what hoses would I need?

1989GTATransAm

iTrader: (3)

Mine did not fit in bad at all with the stock radiator. When I installed the bigger radiator it made the fit tight but doable. All the hoses and the pigtail for the charcoal canister relocation came with my SLP cold air kit.

If you have the kit they should be there. If not you will have to buy the hoses and make up a pigtail. You have the charcoal canister so see what size the nipples are and you can buy the hose in that size. One vents to the drivers side wheel well. One goes to the throttle body. And I believe the last goes to the gas tank.

Steveh4263

iTrader: (1)

Did not get much when I bought the Kit used. Just the air box and the hoses and the air filter. Thanks for the help. I was going to give up and not put it on the car. It just looks like it fits in there tighter on my 87 as my air conditioner sits on the drivers side.

DANNY25SS

i did mine all with abs mainly as a prototype for an all alum setup so far i gained approx 1.5-2 mpg avg but this last week i got 250 miles out of one tank driving to and from work ill get pix asap