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Thread: a/c air to the trunk?

  1. #1
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    Post a/c air to the trunk?

    anyone ever tried to get the a/c air from the front to the trunk of a compact car or any car in fact?
    perhaps by means of some kind of tubing..... I hate hot weathers, I get really scared of turning on the PC.
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  2. #2
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    Yes I have thought of that in fact, I even tried it. What you need is some large like 1/2" tubing with a fan in about the first foot of it to push the air through it. There def is not enough pressure to just have a tube. If anyone else has ideas, im interested as well
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  3. #3
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    I think I will jsut connect straight into my CPU fan, it's one of those used for overclocking.. YStech fan. It's loud and pushes a lot of air...

    I jsut wanna know if anyone actually done this. I have a 97 civic and there is just not much space to run a decent diameter tube all the way to the trunk without looking too ugly...

    I will need to make some sort of connectors too I suppose....
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    I've thought about running some sort of tubing to the trunk as well, but it would just be too ugly. So if it ever gets really hot, I just fold down one of my rear seatsand I get all sorts of air flow to the back.

  5. #5
    Retired Admin Aaron Cake's Avatar
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    Well, you could run the tube under the car. Just tap off the AC under the dash, and straight down through the floor. Then come up through the floor of the trunk...But a better idea may be to just duct in some already cool air from under the seat or something....Have one fan push cold air into the trunk, the other fan remove the hot so it circulates properly.
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    Think for a moment, about the air temp running through there in the winter. Or for the first few minutes after you turn on your car on a hot day...just make sure you figure in some way to cut the air supply.

  7. #7
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    I actually did this using plastic tubing from Home Depot. It is not easy. It's a big job especially if you want it inconspicuous. It's rather difficult to achieve satisfactory result tho; like ppl said above you need a powerful AC and a very efficient airpath to the trunk. In my cheap design the AC air lost most of its cool by the time it reached the trunk. So I hooked the tubing to the computer case and added extra fan to blow the AC air directly into it. When I use this on the hottest day, the ambient temp in the case drops from 130F to about 100F so I guess it could be worthwhile for some people in hot climates.

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    Old vacuum cleaner hose...

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    Retired Admin Aaron Cake's Avatar
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    Vacuum hose is good, just don't get the plastic stuff. In a hot car, it will collapse. Use the old fabric stuff with the metal spring inside. By far, it's the best quality vacuum hose. Might be hard to find though, as vacuum stores pay a premium for good used hose when rebuilding vacuums. The new stuff is just so expensive.
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  10. #10
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    You might want to avoid running the hose under the car, unless it is well insulated. Running cold air through a hose on the outside of a car to the boot (trunk) will make the air rather warm, very quickly. Maybe some sort of pickup under the back seat, fed by fans to the boot (trunk) is the best option.
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