Hey everyone..

I have never done a cold air intake setup before, nor would I know where to get large size tubing other than dryer tubing which would be thin and heat up the inside air..

I would like the intake to adapt to the 3800 throttle body obviously and provide me with the correct length to go up into the roof scoop (the plastic kind often seen on here which gets bolted to the driver side engine decklid vent.

If anyone has any ideas please let me know. I was thinking about buying this just for the tube..
http://cgi.ebay.ca/87-07-FO...QQrdZ1QQcmdZViewItem

Thank you for looking!

Matthew_Fiero

A straight tube and a 45 should get a filter in the stock well location fairly easily.

You do not want to try to take air in from the vent, as air flows from the bottom of the car, through the vent, and up and out.

I like to use three inch ABS and run it through a new hole I make in the driver's wheel well that puts the line over the fuel tank filler tubes instead of under them. The ABS is easy to work with and does not conduct heat like the stainless ones do and can also be wrepped in reflective ta;pe if you want to get the intake air temps down even lower.
In total it costs around $10 for the ABS then clamp a K&N filter on the other end and you are all set. Dan

A fast and efficient way to do it. Buy a 3 1/2" ID aluminum air pipe from Voracious Motorsports, and a K & N or similar cone filter for the end. Locate the filter in the wheelwell so it will take in cold outside air. Cut the pipe to size and place it in the stock GTP intake accordian and clamp. DON'T use 3" pipe as its too small and will prove to be a restriction. Use at least 3 1/2" ID aluminum air pipe.

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87GT - 3800SC Series III engine, 3.4" Pulley, N* TB, LS1 MAF, Flotech Exhaust Autolite 104's Custom CAI 4T65eHD w. custom axles
87GT - 3.4L Turbocharged engine, modified TH125H
" I'M ON THE LOOSE WITHOUT THE JUICE "

thers an intake system called a BMC CDA, bmc being the company and cda stands for carbon dynamic airbox. it sounds cool and really peps up porsches and bmws which generally come with good intake systems to beign with. it comes with a length of flexable tubing so you can even route the inlet down to the side intake. the cheaper version costs about 150 which is competitive to all the other off the shelf intake systems and is better insulated from the engine bay heat.

i havent tried it against a good cold air intake but they 'claim' the design allows for better flow(over a cai) and is based off of the formula intake systems, i just like it because its easy to install into cars that dont have readily available intake kits or where your aftermarket blower forces you to have to make a new one.

quote DON'T use 3" pipe as its too small and will prove to be a restriction

I do agree that 3inch is too small, but it does work fine on my stuff.....

I do use PVC/ABS on most of my intake setups, its cheap, easy, and like dan said, it doesnt conduct heat.

I decided to stay away from aluminium when I touched the crx like intake on a stock v6 after a drive...almost burned my fingers ! I'll try to source some 100mm pvc tubing, I have a big K&N with 100mm outlet waiting..

quote Originally posted by Matthew_Fiero:I have never done a cold air intake setup before, nor would I know where to get large size tubing other than dryer tubing which would be thin and heat up the inside air.... If anyone has any ideas please let me know.

Well, you may not have done a cold air intake setup before, but the stock V-6 Fiero did, so there's certainly precedent for having one.

At one time, I was considering custom tubing for my own engine swap. Although I ended up using the stock, black rubber Fiero S-tube with my swap (a 3.4L), here are some sites I looked at for custom, larger-than-stock-sized tubing which may be of interest to you for your 3800 project:

http://www.ducting.com/Air.html
http://www.stylinmotors.com
http://www.turboneticsinc.c...x.php?category_id=30 http://www.hoseline.net/ducthose/index.html

In particular, the heat-reflective "Raceflex" hose offered by www.ducting.com (and some other websites) probably is about as far away as you can get from the overly thin "dryer tubing" you'd mentioned, in terms of both its efficaciousness with a cold air induction system, but unfortunately, also in terms of its priceyness.

If price is a big concern, there are numerous alternatives to Raceflex on the websites I've listed above, albeit perhaps not quite as efficacious as Raceflex with a CAI system.

In any case, good luck with your project.

Why is everyone telling me to use the side scoop when the roof scoop has a much bigger.. well scoop!

quote Originally posted by Matthew_Fiero: Why is everyone telling me to use the side scoop when the roof scoop has a much bigger.. well scoop!

Air flows up from the motor, so its going to be hot air, and there is not that much "forced" air coming up that way. The side area has the scoop, and a GIANT opening towards the ground area. Your intake temps are going to be ambient, no matter what with your filter there, anything else is just going to be a typical hot air intake...

Just mount you a cone filter right off the TB like that guy that does V-8 swaps and you will be all set. I mean if he does it then it must be alright, I mean he has been it for 20 years. I seen atleast 3 LSX installs at the 25th like this that used a micro cone filter.

quote Originally posted by MstangsBware: micro cone filter.

That micro cone was really funny. I would consider putting it on a lawnmower, or a moped, but I think it would be restrictive for a duke or a 2.8 even.