my EFI Air cleaner

Keith V

Keith V

Well-known member
Mar 26, 2008
3,582
376
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I finally, after way too much analysis brooding and reflection figured out a half decent way to mount a remote air cleaner.

My criteria was:
1. It had to be a real air cleaner, not a oiled washable one that in reality never gets washed or oiled
2. It had to be serviceable, changing the filter should not require disassembling anything or suffering too much
3. it must draw in clean fresh cool air
4. The filter must be readily available

I feel this install met all the above, #3 isn't optimal as the inlet is pointing down, but it's off to the side of the radiator and should be clean. I
could possibly add ducting of I was so inclined
It uses a Wix 46573 filter out of a 2001 to 2020 Duramax. It has 190 square inches of surface area vs 110 for the stock filter.
This is the outside diameter NOT filter area.
Maybe Jim K can determine the actual filter area.
I used the Spectre hat and their 4" ducting, it worked out well. the jeep hat seems too small and restrictive for my comfort

Here is the bracket. This relocates the air tank closer to the fender allowing room for the filter
http://www.gmcmhphotos.com/photos/data/7303/medium/20210508_105740.jpg

here is how the air tank and filter mount to the bracket
http://www.gmcmhphotos.com/photos/data/7303/20210508_125320.jpg

here they are mounted in the coach
http://www.gmcmhphotos.com/photos/data/7303/20210508_133152.jpg

Here they are from the hood side. the front cover comes off and the filter is 'easily' replaceable
http://www.gmcmhphotos.com/photos/data/7303/20210508_133219.jpg

Here is the hat
http://www.gmcmhphotos.com/photos/data/7303/20210418_195216.jpg

--
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8
 
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Take a look at the inlet diameter of the OEM snorkle air filter housing. It
is somewhere around 3" in diameter. So with that knowledge firmly within
your grasp, 4" exhaust tubing should be way more than adequate. But, the
"AMERICAN WAY" is always that bigger is better than smaller. But not always
necessary. Just my take on it.
Jim Hupy
Salem, Oregon

> I finally, after way too much analysis brooding and reflection figured out
> a half decent way to mount a remote air cleaner.
>
> My criteria was:
> 1. It had to be a real air cleaner, not a oiled washable one that in
> reality never gets washed or oiled
> 2. It had to be serviceable, changing the filter should not require
> disassembling anything or suffering too much
> 3. it must draw in clean fresh cool air
> 4. The filter must be readily available
>
> I feel this install met all the above, #3 isn't optimal as the inlet is
> pointing down, but it's off to the side of the radiator and should be
> clean. I
> could possibly add ducting of I was so inclined
> It uses a Wix 46573 filter out of a 2001 to 2020 Duramax. It has 190
> square inches of surface area vs 110 for the stock filter.
> This is the outside diameter NOT filter area.
> Maybe Jim K can determine the actual filter area.
> I used the Spectre hat and their 4" ducting, it worked out well. the jeep
> hat seems too small and restrictive for my comfort
>
> Here is the bracket. This relocates the air tank closer to the fender
> allowing room for the filter
> http://www.gmcmhphotos.com/photos/data/7303/medium/20210508_105740.jpg
>
> here is how the air tank and filter mount to the bracket
> http://www.gmcmhphotos.com/photos/data/7303/20210508_125320.jpg
>
> here they are mounted in the coach
> http://www.gmcmhphotos.com/photos/data/7303/20210508_133152.jpg
>
> Here they are from the hood side. the front cover comes off and the filter
> is 'easily' replaceable
> http://www.gmcmhphotos.com/photos/data/7303/20210508_133219.jpg
>
> Here is the hat
> http://www.gmcmhphotos.com/photos/data/7303/20210418_195216.jpg
>
> --
> Keith Vasilakes
> Mounds View. MN
> 75 ex Royale GMC
> ask me about MicroLevel
> Cell, 763-732-3419
> My427v8
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
Interesting approach to get more air to your induction system. Nicely done.

I am curious as to the make and model that you used to find your "Spectre hat and their 4" ducting"?

--
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com


Coop Roller Cam 455, Howell TBI + EBL, 3.42 FD, Quadra Bag, Macerator, Lenzi stuff, Manny Tranny etc.
 
James,

Upload some pics of the air intake off The Pig.

Sully
Bellevue wa.

> you should of made 2. now I have to make my own!
>
> --
> Jon Roche
> 75 palm beach
> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
Jon,
well now you know how to do it!
I moved the air tank over exactly that the right mounting bolts lined up with the left bracket holes. The air cleaner was welded insitu and i have zero measurements. But it was shoved uo against the frame as much as possible

RJW, the spectre hat and hose are easily found.
Here is the hat on Amazon

https://www.amazon.com/Spectre-Performance-Polished-Profile-Single/dp/B004AJ6GIC/ref=mp_s_a_1_9?dchild=1&keywords=carburetor+hat&qid=1620747545&sr=8-9

James, they make bigger filters! This was basically the best compromise I almost made my own housing
________________________________
From: Jon Roche
Sent: Tuesday, May 11, 2021 8:51:54 AM
To: gmclist
Subject: [GMCnet] Re: my EFI Air cleaner

you should of made 2. now I have to make my own!

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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