I know the TPI's don't get much air coming in from the grill. Has anyone built a ram-air system? I've read somewhere about using air-conditioning ducts to push air to the filters. If anyone has done something similar to this, I'd like to follow. Also, does anyone has pictures of it? I need my car to breathe better. Thanks.

 

I didn't build it, but it was on my car when I got it. The passenger-side fog light has been removed and a dryer hose runs up to the air-filter box. Don't know if you would call this 'ram-air' or merely 'cold-air induction'.

It also does a good job of sucking up small rocks, leaves, and other debris off the streets and leaving them in my air box. I need to put some window screening or something over the opening.

 

do u have pic of the setup?

 

Nope. But I could try to take one. It is packed in there pretty good, though - so I don't know if you will be able to see much in a picture. I'll try, though!

 

Thanks! Anything will help.

 

i have of pic of my design but i am at school right now and i will try to post it later tonight. it isnt the design where you have to remove the fog light in order for it to work.

------------------
Brandon
"ScreaminDeamin 360"
350 60 over, TRW forged 9.83:1 pistons, crane cam 216/228 .484/.512, crane 1.6 RR's, ported plenum, home made ram air, 19 lb SVO injectors, crane AFPR

 

Cliff what year is yer car?I have some mods for an 87 air box and airway that work good and cost next to nothing to do.

------------------
87GTA,350,Auto,MAF screens removed,K&N,modified air intake,ADSchip,3:73s,3inch cat back Flowmaster,TPS.54,Bosch Plat plugs,base timing 6BTDC,Bilstiens in the rear....,don't let yer meat loaf

 

Run some flex hoses from behind your fog lights to the box under your air filters. The bigger the hose the better.

------------------
'91 Z28 Blue/Silver ZZ4/ZF6
335.9 rwhp 374.9 rwtorque

 

heres a direct link to my home made ram air pics, it doesnt look too clean in the pictures though.
http://users.argolink.net/bvana/imag...ne/intake1.jpg
http://users.argolink.net/bvana/imag...ne/intake2.jpg


------------------
Brandon
"ScreaminDeamin 360"
350 60 over, TRW forged 9.83:1 pistons, crane cam 216/228 .484/.512, crane 1.6 RR's, ported plenum, home made ram air, 19 lb SVO injectors, crane AFPR

 

Im intrested in doing this as well, BUT i want to keep my fog lights in becaus i leave them on all the time and they look bright and cool. Is their anyway other set up, could you somehow but some air recievers under the car?

------------------
1991 Z28 Camaro L98
5.7 T.P.I. (350)

http://www.bright.net/~rwig/BandetZ28.jpg
http://www.bright.net/~rwig/BandetZ28-2.jpg

 

Hey how does your car run with those small injectors and that cam which is almost identical to mine ? Mine can only do low 14s and I hate it ! lol


------------------
92 Z28 L98 350
---------------
Ported and polished heads, ported stock TPI base, ported plenum, Comp Cams XR270HR-10 cam (lift .495/.502 duration 218/224 lobe separation 110), Edelbrock TES headers, LT4 valve springs, Crane AFPR, Flowmaster catback with LT1 style tips, MSD coil & wires...

"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)

 

Thanks for the pics ScreaminD. Anymore pics would be great. I want to build a similar setup but I have a plastic piece (don't know the exact terminology) between the fog light and the air filters. Do I remove the entire piece or do I cut it to allow the hoses to pass thru?

------------------
1992 Z28 (305) TPI.
160' stat, Accel 8mm, Flowmaster high-flow cat-back.

 

i just took mine out, i have had it on there for almost 3 years now and still runs great.

------------------
Brandon
"ScreaminDeamin 360"
350 60 over, TRW forged 9.83:1 pistons, crane cam 216/228 .484/.512, crane 1.6 RR's, ported plenum, home made ram air, 19 lb SVO injectors, crane AFPR

 

Ram air (or its effect) will have minimal effect except at VERY HIGH SPEEDS. What you want is COLD AIR. That has an effect at even slower speeds.

The amount of "boost" you would get from a Ram Air setup below 100 mph is less than .00001%. But there is a 1% HP effect for every 10*F change in temperature...

 

I recently built a ram-air setup for my '87 IROC. I made it from sheet metal or aluminum HVAC ducting I bought at Home Depot Racer's Supply. I used a short 4" elbow coming from the fog light duct (which I had cut back a couple inches on the top), then connected a 4" to 5" reducer (expander?) to the top of the elbow. The top of the reducer is directly underneath the K&N air filter, although I had to cut down the height of the reducer a little to get everything to fit. Of course, there's 2 of every part listed here since it's a Camaro...

------------------
Greg Westphal
'87 IROC 305TPI/A4

 

I don't know how your car is set up, but i did the following set up on a speed density formula.

I went to Lowes and bought a vent hood with an aluminum 4" tube attached. It also comes with dryer ventage.

I tilted my charcoal cannister sideways behind the passenger side headlight.

Then cut the aluminum so it only stuck out about 2" from the hood. Attach the ventage, stick it in so the hood is in your passenger side fender. Attach the other side of the ventage to your snorkel. It comes with 3 lock ties to secure everything.

It cost $8.88 and makes my car run cooler and noticeably better throttle response. I didn't want to run anything under the car, or outside of it. Thats why it's safe where I put it.

You dont have to worry about water , or rocks, or leaves. I have never had a problem with them. Not once.
Oh yea, you'll have to ditch the factory bracket the charcoal cannister and airbox sit on.

[This message has been edited by theformula (edited October 12, 2000).]

 

Oh yea, the thing is located in the washer dryer section near the cabinets I think. In the back/ right of the store. Dont go to the PVC tubing or ventage aisle.

 

Anyone consider using 4" (or thereabouts) PVC pipe? I think the smooth inside surface would let the air move more freely than the rough, uneven surface of the flex HVAC tubing..
Hell for THAT matter, I wonder if you can get the black plastic tubing used for lawn sprinklers in large diameter? Its somewhat flexible, and its black!

 

The only thing that would be good for around here is sucking up water in floods! Count me out of that one ....

 

heh.. with ANY type of intake setup that pulls air from the foglight tubes, driving in ANY depth of puddle is OFF LIMITS. A buddy of mine recently grenaded a TOTALLY STOCK quad-4 grand am by driving through a semi-deep puddle.. snapped a con-rod and blew the side right out of the block! apparently the air pickup is in the wheelwell on thise cars, and.. the rest is history!

 

Anyone with these set-ups have some before and after track times?

 

Here is a link to one I made for my car. It consists largely of Home Depot HVAC parts, duct tape, RTV and clamps. The entry point is just below the front lower valance panel in front of the rubber air skirt just below the radiator. It not only grabs cold are, but cold pressurized air. My butt dyno feels more response at highway speeds, and aids in lower octane requirements. Check it out...

[URL=http://www.iroc-z.com/flashlight/howtopages/engine/engine1.htm[/URL]

------------------
1986 IROC-Z28 L98 TPI BW WC T-5
Air Foil
K & N
Custom Ram/Cold Air Induction
Koni Gas Shocks
Spohn LCAs and PHrod
Art Houser/Moser 3.73:1 Torsen Diff
Amsoil lubes and oil filter
Flash to Pass feature & 100w Euro lighting
Recaro Driving seat
Hurst Comp + shifter
Random Tech SHF cat

[This message has been edited by Sandy Mandel (edited May 23, 2001).]

 

Here is a link to one I made for my car. It consists largely of Home Depot HVAC parts, duct tape, RTV and clamps. The entry point is just below the front lower valance panel in front of the rubber air skirt just below the radiator. It not only grabs cold are, but cold pressurized air. My butt dyno feels more response at highway speeds, and aids in lower octane requirements. Check it out...

http://www.iroc-z.com/flashlight/how...ne/engine1.htm

 

------------------
1986 IROC-Z28 L98 TPI BW WC T-5
Air Foil
K & N
Custom Ram/Cold Air Induction
Koni Gas Shocks
Spohn LCAs and PHrod
Art Houser/Moser 3.73:1 Torsen Diff
Amsoil lubes and oil filter
Flash to Pass feature & 100w Euro lighting
Recaro Driving seat
Hurst Comp + shifter
Random Tech SHF cat

 

On me 92Z I just took 2 pieces of 3in PVC 90*'s. I then took a hole saw and drilled a nice big whole under my filters. Next, I removes the pieces that are behind the fog lamps and slightly offset a big hole about an inch infront of the filter box hole. After I put the pieces back together again, the 90's fit in just right and hang down about an inch and a half behind the foglamps. It sounds a lot more complicated than it is. The whole project was done in about an hour, and took about 2 beers on a summer evening. I did pick up a big seat of your pants difference, and with the KN filters, works great.

Jeremy

------------------
WE WILL MISS YOU #3
92 Z conv
5-spd B&M shifter
home-made ram air, air foil, headers, no cat, TB bypass, kevlar pads, slotted rotors, BMR panhard, alston SFC, 3.42's, Edelbrock STB, 350 in the works

 

I just took some 8" diamater airconditioning duct, took off the fiberglass insulation, sawed the bottom of the airbox off and put some duct tape for a smooth transition. I dont get many rocks, but bugs are a problem. I just tap out the filters every once in a while. I REALLY dont think a puddle would cause any damage since it would have to be splashed in about a foot, turn 90 degrees, then up about a half a foot - then go through the filters, but you never know. Doug

------------------
Central Indiana Camaro Club member since Oct. 2000
1991 Z28 - 51,000 miles.
Dyno Results: 226.4 Max Hp; 310.4 Max Torque (ft-lbs)
All power options leather. 350 TPI:
K&N; Airfoil; Custom 'Ram-Air'; Slp Runners;Poweraid TB spacer;
Fastchip;
SLP Headers; Borla Catback 50% open; Dual factory Cats;
March underdrive pulleys;
Accel Extreme 9000 wires, Accel coil; Hypertech rotor & cap; NGK platinum plugs;
Manual fan switch;
TB coolant bypass; smog pump delete
Spohn subframe connectors (black powder coat);
Pirelli P7000 Z245/50/R16 all season tires;
Energy suspention motor mounts
S Cobra Radar Detector; Z28 SS Floormats;
Technalon IV car cover (now on my dad'a 2000 Berger SS).

 

I am currently in the process of doing a cold air / ram air setup. The reason for the / will be apparent. I used used 3" pvc pipe from home depot to relocate my filter to where the charcoal canister was (removed w/ the emissions). I then cut a slightly larger than 3" hole in the battery tray (battery is really on the passengers side, but it is the same part/location) and installed a 3" flange. I ran some 4" dryer ducting from the flange around to right in front of the air dam and im looking for the appropriate size and shape of scoop to install. I used the semi-rigid metal dryer ducting, not the accordion metal or plastic stuff. It seems like at high speeds that would rip apart. Im hoping for a ram air effect into the engine compartment, also supplying very cool air, to be picked up by the cold air intake setup.

Any thoughts good or bad on what i came up with?

 

i would recommend using the smoothest inside possible on your ducting/tubing and the least amount of bend as possible as these things would reduce, and disrupt airflow.

 

4" drainage pipe/tube, I know it's not smooth, but somewhat flexible and $1.90 for 10' here. $30 for a filter with a heat shroud around it to a 4" opening. Cut hole below stock air box(trans am), then route to fog light(this took some effort to make the 3-4 bends and final 90* bend) to meet the new filter in stock location. I doubt it helps much over a just putting a K+N in the stock location(previous set up), but $2 for cold/ram air. I had the filter from a different car. And i still have 7+' of this stuff in my closet.

------------------
14.62@96mph headers, muffler, chip, ghetto stuff, duct tape
89 GTA 305 TPI 5 speed 3.42 gears

 

I tried getting thirdgen.org to put this up as a tech article, but they never responded. By far one of the best jobs I've seen. Thanks again Jobryan26

http://87tagta.tripod.com

Go to CAI

------------------
~3.1EyeCandy~
"The car that started my craze" -'92 Firebird 3.1 (A car sold)

My new baby: '87 flame red GTA 350 w'auto, ported and polished plenum, custom cold-air intake w/K&N, Hooker SuperComp Exhaust, Splitfire plugs, Hypertech Airfoil,
Carmine interior with pioneer all around
THE GTA

 

man this post is old...

------------------
Brandon
"ScreaminDeamin 360"
350 60 over, TRW forged 9.83:1 pistons,Hooker Comp headers, crane cam 216/228 .484/.512, crane 1.6 RR's, ported plenum, home made ram air, 24lb SVO injectors, crane AFPR, all going through 3 inch mandrel pipe and a flowmaster.
New project-89 IROC-305 5spd...Jamex Springs...and thats just about it!Soon- 6 speed, Pro 5.0 shifter and 4.10's

http://ScreaminDeamin.cz28.com

 

Check out my website for my custom Cold Air Induction setup that I built. My TPI breathes much better now.

------------------
87 TA, 305 TPI, Custom CAI, ACCEL 8mm wires,ACCEL Super-coil, ACCEL Plugs, JET TPI Airfoil, Cherry Bomb Muffler
"35 yr old helo pilot
with a cool new toy my 17 yr old son wants"
The Phoenix Project..click to see my project car
Trans Am stuff and GIRLS, GIRLS, GIRLS!!!!!

 

I recently did the same thing on my TA. My cold air intake was made of PVC pipe and the open element filter. I didn't notice a lot of difference but the throttle response is definetly better. I like the setup on John's GTA, looks almost identical to mine.