build your own air intake box? need help!!please!! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-24-2006, 08:40 PM   #1
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Default build your own air intake box? need help!!please!!

i have a 1994 bonneville SE and i just put a new intake system on it with a cone filter, I heat wrapped the intake tube but i want to create a box under the hood that will go over the top of the cone filter and the side exposed to the engine so I can keep the hot air from in the engine compartment out of the intake.......PLEASE HELP ME!!!!
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Old 01-24-2006, 08:47 PM   #2
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you want to build something like this

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its plastic underneath the insulation.....most ppl use lexan or something similar to make the box
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Old 01-24-2006, 08:48 PM   #3
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Old 01-24-2006, 09:02 PM   #4
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You could use wood if that better suits you. I think that'* what I'll make mine from. It'* cheaper and easier to work with than lexan, but isn't as pretty. it retains good thermal properties though apparently.
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Old 01-24-2006, 09:15 PM   #5
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Quote:
Originally Posted by 1993 SLE
you want to build something like this



its plastic underneath the insulation.....most ppl use lexan or something similar to make the box
That is a work of art.

You have it attached to the lid shelf. Did you have to leave any room for torsion between the box and the pipe? Just thinking about the engine movement in Bill'* vid...
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Old 01-24-2006, 10:19 PM   #6
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thank you

and yes there is room for the pipe to move because the box is attached to the car because i didnt want the weight of the box pulling on the TB and
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Old 01-25-2006, 12:23 AM   #7
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Quote:
Originally Posted by 1993 SLE
thank you

and yes there is room for the pipe to move because the box is attached to the car because i didnt want the weight of the box pulling on the TB and
You'd be better off NOT attaching it to the car, but having it lift if it needed to, and come to rest in the non-motor-flex position.

The box doesn't have to be totally sealed if you provide a constant force-feed (ram-air) supply to it.
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Old 01-25-2006, 03:14 AM   #8
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Old 01-25-2006, 03:33 AM   #9
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[quote="charliemax"]
Quote:
Originally Posted by 1993 SLE
Did you have to leave any room for torsion between the box and the pipe? Just thinking about the engine movement in Bill'* vid...
my l27 basically has no flex...well some bad we are talking less than an inch. The motor mounts are extremely solid compared to most engines I have seen. But either way it does move some.
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Old 01-25-2006, 10:27 AM   #10
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My engine doesn't move that much now with new mounts, but it does move at least an inch.

If you replace all your mounts, flex will be reduced. Until then, plan for some flex. You don't want your box or pipe tearing loose, and you don't want force applied to the throttle body. If you want to attach the box, don't use a rigid pipe. Use INTENSE-style tubing instead.

If I ever do a CAI on the SLE, it'll be INTENSE-style tubing feeding a CAI. Too messy in the winter around here to run a FWI, and the 92-99 doesn't have the 'under skirting' in the fender area to keep a FWI clean like the 2k+ do.
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