IMPROVED: DIY "Icebox" style CAI - Team Integra Forums - Team Integra
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post #1 of 329 (permalink) Old 10-05-2006, 11:31 AM Thread Starter
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I have improved upon my DIY "Icebox" CAI and I thought that I would share the details with everyone.

I initially designed the original DIY "Icebox" CAI using 3" thin-walled PVC, since this 3" is the diameter of the Comptech Icebox air inlet. I have been running this setup for about 5-6 years and have been very pleased with the performance. But since that time I have read many post (primarily on H-T) about the Mugen intake system.

The Mugen intake system volume is larger than the Comptech Icebox (as can be seen in picture below). The Mugen also uses a larger diameter airhorn (4") than the Icebox (3"). The Mugen also has better throttle response when compare to the Icebox.



This prompted me to look into designing an intake system that would use a 4 air inlet/airhorn. I purchased a used stock airbox, some 4 thin-walled PVC piping & elbows and a 4 airhorn (speaker port). The oval opening in the bottom of the airbox matches the diameter of the 4 PVC piping. So I needed a way to attach the PVC piping to the oval opening on the bottom of the airbox, I used a 4 flexible pipe connector (see picture below). The flexible pipe connector has a thin inner rubber connector and on the outside a thin flexible steel cover which has a worm-gear band on both ends.



Here are some pictures of the assembled intake.






Here are some pictures to compare the new intake design (right) to the old intake design (left).




Here are some pictures of the intake installed. You can also partly see the bracket that supports the intake tube near the elbow.






The new intake does have better throttle response when compared to the original intake. The engine is much more responsive and pulls harder, especially above 4-5k RPM. The improvement in performance between the original design and the new design is very noticeable.
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post #2 of 329 (permalink) Old 10-05-2006, 11:34 AM
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i did the same thing, picked up a spare oem box and haven't thought about getting a comptech since then.

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post #3 of 329 (permalink) Old 10-05-2006, 11:35 AM
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nice i gotta try that.
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post #4 of 329 (permalink) Old 10-05-2006, 11:37 AM
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damn that looks pretty sweet. so the bottom is open end and the filter is still in the air box?

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post #5 of 329 (permalink) Old 10-05-2006, 11:43 AM
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Very badass. I assume you are going to leave the turn signals out?

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post #6 of 329 (permalink) Old 10-05-2006, 11:43 AM
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adikted2my92: i did that with my old DA also =P....it worked pretty stealthy when i use to street race. i mean cough....

i use to hide my zex lines also.
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post #7 of 329 (permalink) Old 10-05-2006, 11:44 AM
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Quote:
Originally Posted by Tegra17 on Oct/05/06
Very badass. I assume you are going to leave the turn signals out?
I would assume he's going to put them back on if he wants to keep it street legal.

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post #8 of 329 (permalink) Old 10-05-2006, 11:47 AM Thread Starter
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Quote:
Originally Posted by Altair on Oct/05/06
Quote: Tegra17 on Oct/05/06Very badass. I assume you are going to leave the turn signals out?

I would assume he's going to put them back on if he wants to keep it street legal.
Yes, I only removed the turn signal to show where the airhorn is positioned.
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post #9 of 329 (permalink) Old 10-05-2006, 11:51 AM Thread Starter
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Originally Posted by adikted2my92 on Oct/05/06
damn that looks pretty sweet. so the bottom is open end and the filter is still in the air box?
The air filter is still in the airbox as originally designed. The only thing that is different is the restrictive resonator has been removed and a cold air extension has been installed to draw cooler air from the fender well.
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post #10 of 329 (permalink) Old 10-05-2006, 11:57 AM Thread Starter
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one thing that I forgot to mention in the original post is that this new intake design is a blend between the Comptech Icebox and the Mugen intake system.

Also, here is a LINK and MIRROR LINK to the original DIY "Icebox" CAI.
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post #11 of 329 (permalink) Old 10-05-2006, 01:03 PM
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Awesome write up and I will definitely do this when I have some time. Great way to save some money.

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post #12 of 329 (permalink) Old 10-05-2006, 01:28 PM
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you need to get an NSX airbox, that would make it even better.

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post #13 of 329 (permalink) Old 10-05-2006, 01:38 PM
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Nice job, the improvement definitely looks beefier.

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post #14 of 329 (permalink) Old 10-05-2006, 02:02 PM
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parts list please and where you purchased the stuff to make it. Awesome intake man!

... then halfway throught the project you get a phone call from a girl who you met a couple of weeks ago, saying her parents are gone for a couple of hours, and she wants you to come over and bang her gears and pop her vtec...
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