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Old 12-12-2007, 10:32 AM   #1
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Default My $20 custom airbox

I am in the process of installing my MP62 coldside SC. I figured I would post a few pictures of my $20 custom airbox mod.

I used corregated plastic and 0.5 x 0.5 aluminum angle. The filter is a 7" round x 4" deep K&N that has an offset hole.

The area marked with an "X" in the 1st picture will be cut out of the firewall. I just haven't done it yet.

I should be pulling 99% of my intake air from the high pressure cowl.

Here are some pictures...













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Old 12-12-2007, 10:41 AM   #2
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Nice work!
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Old 12-12-2007, 11:28 AM   #3
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Damn that is nice work. Good job!
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Old 12-12-2007, 11:41 AM   #4
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Wow, that's perfect - and easy for the blower. Though I think that's the wrong filter for the box. You need something that keeps that hole open - like a domed foam filter or smaller gauze. I just wouldn't want the filter covering the hole, or you're going to only use about 20% of the filter which will be restrictive (not to mention get dirty quick).
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Old 12-12-2007, 12:08 PM   #5
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How much does your engine rock? Make sure to allow for this.
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Old 12-12-2007, 12:16 PM   #6
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Quote:
Originally Posted by TurboTim View Post
How much does your engine rock? Make sure to allow for this.
The hole in the box is oblonged to compensate for engine rock. I hope its enough. I am running stiffer mounts so hopefully it will be enough clearance. If not, I have a razor knife and I'm not scared to use it.

Cupcar,
I will re-evalute the filter situation once I get the car together and running. The hole in the firewall is above the filter, so I don't think I will have an issue. Only time will tell.
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Old 12-12-2007, 12:28 PM   #7
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after you cut that hole through the firewall, be sure to post pics on miata.net under "check out what I did to my sunburst"
They'll trip.
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Old 12-12-2007, 12:36 PM   #8
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^

yeah- I see now, it's under that seam.
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Old 12-12-2007, 12:37 PM   #9
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Quote:
Originally Posted by Ben View Post
after you cut that hole through the firewall, be sure to post pics on miata.net under "check out what I did to my sunburst"
They'll trip.

The pansy purists will have a cow. I will have to do it.
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Old 12-13-2007, 04:50 PM   #10
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LOL! you guys are cruel.. and i love it

great work btw! is that the FFS setup? i always wondered why the filter was wrapped around under the car...
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Old 12-13-2007, 04:54 PM   #11
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Quote:
Originally Posted by teknikscian View Post
great work btw! is that the FFS setup? i always wondered why the filter was wrapped around under the car...

cause this would be impossible to do with A/C and ABS.
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Old 12-13-2007, 05:04 PM   #12
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Quote:
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after you cut that hole through the firewall, be sure to post pics on miata.net under "check out what I did to my sunburst"
They'll trip.
There will be complete genocide,let alone the heart attacks.
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Old 12-13-2007, 05:06 PM   #13
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I think it "could" work with AC, no chance with ABS. Being that my AC has been gone for years, I was never able to experiment with that.

Yes this is a FFS somewhat custom kit.
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Old 12-13-2007, 06:48 PM   #14
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nice work. wanted something like that for my current turbo build but the cowl is just too far back from the turbo inlet.
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Old 12-13-2007, 06:59 PM   #15
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Quote:
Originally Posted by Braineack View Post
cause this would be impossible to do with A/C and ABS.
oh yeah, those pesky little devices...
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Old 12-13-2007, 07:18 PM   #16
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Very nice!
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Old 12-13-2007, 08:19 PM   #17
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Quote:
Originally Posted by Ben View Post
after you cut that hole through the firewall, be sure to post pics on miata.net under "check out what I did to my sunburst"
They'll trip.

Put a FM sticker on it and they will think you are a GOD
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Old 12-14-2007, 01:11 AM   #18
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Quote:
Originally Posted by spike View Post
There will be complete genocide,let alone the heart attacks.

I did something similar to my first Sunburst, only on the other side of the engine....and yes there were a number of people that thought I was mad. Hasn't stopped me from thinking of doing it again for my DIY setup with my current sunburst, and there is only 55 of that model down under.

J
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Old 12-14-2007, 05:33 AM   #19
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looks nice
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Old 12-14-2007, 10:03 AM   #20
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I cut Tom's BRG headlight lid without even thinking. I believe a few people commented about it, then i thought how ******* lame, it's a miata, regardless of the color/trim. a starburst yellow isn't going to drop any panties, therefore, it's ok to cut up and abuse.
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