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directing outside air to filter

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Old Sep 8, 2007 | 04:56 AM
  #1  
netfreak's Avatar
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From: Kelowna, BC, Canada
Car: 88 firebird
Engine: 305 TBI
Transmission: 700R4
directing outside air to filter

I'll be fishing around at the home depot and canadian tire tomorrow for materials that may help me, but any advice from people who have done this would be very much appreciated. I will attach a hilariously drawn picture to illustrate my need:



I have a small scoop from a 280z or something that seems to end up on every vehicle I own... I'd like to try feeding outside air to the vicinity of the air filter so it doesn't always end up being hot engine bay air. This is an open element air cleaner BTW.

If anyone has this sort of thing for sale, let me know too. Even something close that could be modified to work.
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Old Sep 8, 2007 | 10:14 AM
  #2  
fireeagle43's Avatar
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Re: directing outside air to filter

If you check out the back pages or Hot Rod, Car Craft or any of the big Magizines, theres a company that sells an air cleaner assembly that includes hoses and ducts to draw fresh air from below the front bumper, I thing the system runs around $200.

Also, look at Auto Zone as they sell tubing and silicone hose connectors to make your own ram air set up and I don't believe the prices are all that bad.
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Old Sep 10, 2007 | 11:15 PM
  #3  
netfreak's Avatar
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From: Kelowna, BC, Canada
Car: 88 firebird
Engine: 305 TBI
Transmission: 700R4
Re: directing outside air to filter

Well my budget is more like $20 and not $200 so I started buying some supplies today. A $3 plastic waste basket will function as the attaching piece to the air assembly, and I picked up a couple PVC bends and whatnot to angle the opening up toward the hood. The last step is finding some sort of collector which will line up to a square hole in the hood and connect to the round pipe. I hope to have some progress on this tomorrow.
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Old Sep 12, 2007 | 10:26 PM
  #4  
netfreak's Avatar
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From: Kelowna, BC, Canada
Car: 88 firebird
Engine: 305 TBI
Transmission: 700R4
Re: directing outside air to filter

Picked up some supplies. Got a roof vent for a bathroom, some PVC angles, and a plastic waste basket. We'll see what happens with this
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Old Sep 15, 2007 | 08:31 AM
  #5  
Stephen's Avatar
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: directing outside air to filter

But, will the plastic waste basket, survive in the under hood engine temp?
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Old Sep 15, 2007 | 10:59 AM
  #6  
thomas1976's Avatar
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From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: directing outside air to filter

https://www.thirdgen.org/forums/tbi/...ir-intake.html
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Old Sep 15, 2007 | 01:38 PM
  #7  
netfreak's Avatar
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From: Kelowna, BC, Canada
Car: 88 firebird
Engine: 305 TBI
Transmission: 700R4
Re: directing outside air to filter

Originally Posted by Stephen
But, will the plastic waste basket, survive in the under hood engine temp?
Good question, I don't think I'm gonna risk it. Just looked at www.ramairbox.com and I think I'll just end up buying Part #14x3ST and going from there...
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Old Sep 18, 2007 | 04:44 PM
  #8  
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From: New Philadelphia/ Canton OH
Car: 1991 RS, 84 El Camino conquista RIP
Engine: 5.0 (for now)
Transmission: 4L60
Axle/Gears: 2.xx torsen limited slip & 3.42 ope
Re: directing outside air to filter

ya know i was watching the powerblock on spike tv, specifically the muscle car show. they fabricated a sweet air intake system just using some pipe. why not maybe consider one of these two options before spending some hard cash.

first you need to look at your setup and find where you want the cold air come in at (i'm still working on this) and choose the air cleaner you want to use.

I was thinking there are two options in running the air intake hoses. one use alumn. if you can weld or find the rods that use propane, or use generic duct hose from a big chevy that has long lines (anything but drier hose... c'mon guys that just makes us look bad )

Then just rig it in a semi nice way. maybe pull air out of the fenderwell or if you have a battery relocation put the ducting there and near the coal canister. just a suggestion I'm still working out the details. (aka hoping to find a dual duct air cleaner for less than 100 bucks) hope to have pictures of my idea soon.
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Old Sep 18, 2007 | 05:10 PM
  #9  
thomas1976's Avatar
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From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: directing outside air to filter

ryan, I totally agree that almost everyone has the skills to fab a fiberglas air box and scoop. I give you two important tips I lern'd playing with the air intake.
Wathever ducting material is used, it gets really hot and warms the incoming air. That means the shorter the ducting the colder the air.
Turnes and elbows slow down the air and help it warm up even more. So, no bends for best results.
Loock at the kickass cold air scoop tread and get started.
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