Donaldson diy intake

lincolnlocker

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this is for the guys who drive in the worst conditions and still want some gains over the stock airbox.. i have tried every cone filter, wet or dry, on my dually 7.3 and they all at some point dusted my intake.. to this day i refuse to run a cone filter... i would really love the no limit intake from bigr but i just cant do it.. so this is what i decided to go with as i have one in my 01 7.3. so i figured i would try it here.. its a big ***in filter. its 10.5"x10.5" so its tight.. it still wiggles so its not super tight but it wont move much..
this is the filter number by donaldson
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reference from stock filter to this one
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i just used a stock lid and cut it off exactly the width of the clamp i was using, a 4" to 4" boot that you can see is stretched some but it fit good, a 5" long piece of 4" exhaust pipe, and three stainless t bolt clamps.
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i dont have pictures of the metal support that holds the bottom of the stock box but that needs to be removed with a 13mm socket. also the ram air tunnel thingy that the stock box draws air from the ftont needs taken off and is sorta a pita so be careful, no pic of that either..

i had to grind off a little bit of the battery box to get the filter lined up with the stock intake tube. you can see where it is the bolt hole for the stock box hold down bolt..
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like i said its kinda snug but not like shove it in there snugg..
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i have less then 100 bucks into everything including the pre filter..


what i noticed is that down low it feels about the same as the stock airbox, oh i was also running my stock box like this
a556692fe64fcfeca235153c766a51aa.jpg
so it was basically an open element/cai thingy, but mid range and top end it made a big difference sotp and smoke.. cruising on the free way it used to set ya back in the seat when flooring it but now it will throw you back in the seat and cleans up the smoke from my Rudy's/PIP extreme tune a lot quicker..



my boost does weird things as it did before with the stock box.. if i tip into the thottle, with stock box it would climb up close to 36-38ish psi then settle back down around 30psi.. or when i floor it boost will spike real quick then settle back down the same way.. with this filter it is almost the same but cleans the smoke up and takes off faster...


at some point i want to make my own tube from compressor housing to filter but i dont know what size oval boot i need... im happy with it.. enjoy..

im sure i forgot something in there...

live life full throttle
 

ToMang07

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I've heard some chatter about people doing this....first time I've actually seen it.

I like it, looks good!
 

lincolnlocker

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I've heard some chatter about people doing this....first time I've actually seen it.

I like it, looks good!
thanks.. i firts talked about it early last summer... the pic of the stock filter and new filter side by side is from when i was checking out fitment from early last summer..

live life full throttle
 

TyCorr

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Thats the same gilter you had me get for my 7.3? Cuz that thing is badazz.
 

lincolnlocker

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thanks fellas.


this is NOT the same filter everyone uses on their 7.3s.. that is the 6637, this filter would be the 2790 of the wix/napa world.

live life full throttle
 

Jomax

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thanks fellas.


this is NOT the same filter everyone uses on their 7.3s.. that is the 6637, this filter would be the 2790 of the wix/napa world.

live life full throttle

Why aren't you using the 6637? How does this one compare?

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lincolnlocker

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this filter is way bigger filter media wise the 2790 has 10.5" diameter and the 6637 has a 8.5" inch diameter.. the 2790 is 11.88 inches long total hight including neck and the 6637 is 12.38 total hight including neck.. the pleats in the 2790 are 2.75" deep and the 6637 are 2" deep... i am guessing there is close to twice the filter media in the 2790.. the cfm rating, which i think means nothing, on the 6637 is 425 and has done just shy of 800hp on a 7.3 on swamps dyno, the cfm on the 2790 is 680... so a third more airflow...

live life full throttle
 
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lincolnlocker

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lincolnlocker

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Does anyone have cfm #s from this Donaldson filter or the 6637?
see below
this filter is way bigger filter media wise the 2790 has 10.5" diameter and the 6637 has a 8.5" inch diameter.. the 2790 is 11.88 inches long total hight including neck and the 6637 is 12.38 total hight including neck.. the pleats in the 2790 are 2.75" deep and the 6637 are 2" deep... i am guessing there is close to twice the filter media in the 2790.. the cfm rating, which i think means nothing, on the 6637 is 425 and has done just shy of 800hp on a 7.3 on swamps dyno, the cfm on the 2790 is 680.... so a third more airflow...

live life full throttle


live life full throttle
 
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