Air cleaner
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New User
Joined: Mar 2004
Posts: 22
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From: Alvin TX
Air cleaner
I have read hear , to cut the soup bowl out of the air cleaner, my truck is the 91 7.3 non turbo & has a large looking dome on the under side of the top , sota of a pain to get out 
, is this what your all calling the soup bowl ? 
, thanks to all who answer
one cowboy
, is this what your all calling the soup bowl ? , thanks to all who answer one cowboy
Junior User
Joined: Nov 2003
Posts: 91
Likes: 0
From: S. Ontario
Of course, 1 cowboy
More air,better fuel mixture,more power, must be equalled by air out so mod the exhaust to allow better flow out as well & you got the best your N/A can do without a turbo.
I studied all posts regarding removing the soupbowl because one mech tried to tell me that it was necessary & OEM was how it should be.
Later i learned that the "soupbowl was added by Ford not Navistar to quiet the intake noise for picky customers.
I gained a full 2 mpg & have a lot more noticable power on my '92
Read & learn
This forum is top notch!
More air,better fuel mixture,more power, must be equalled by air out so mod the exhaust to allow better flow out as well & you got the best your N/A can do without a turbo.
I studied all posts regarding removing the soupbowl because one mech tried to tell me that it was necessary & OEM was how it should be.
Later i learned that the "soupbowl was added by Ford not Navistar to quiet the intake noise for picky customers.
I gained a full 2 mpg & have a lot more noticable power on my '92
Read & learn
This forum is top notch!
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New User
Joined: Mar 2004
Posts: 22
Likes: 0
From: Alvin TX
loudwayne, thanks wasnt quit sure on the soupbowl removal , , I have read a lot in this category on the non tubo 7.3 my is the 91 cc 2wd auto with 3;55 , had a 6.9 years ago , have had a coulpe cumming , but my pride & joy is my 69 Dodge swepline , & your right this is a real good site for info , & from what I read so far a lot of good people 
onecowboy
onecowboy
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Tarzan,
Yes you can do something for turbo motors.
Do you have the stock Ford exhaust on your truck from the turbo down and back other tan no mufflers?
Get a turbo outlet from ATS that goes on a three inch downpipe, them replace the rest of your exhaust with a three inch system with as few bends as posible, and leave the muffler where it is now, in the trash.
The lower back pressure will increase your turbo output and response.
Also install a pyrometer so you know how hot you are getting the combustion chamber to prevent meltdown.
Naturally aspirated, breaths on its own with no help from a turbo or supercharger.
Yes you can do something for turbo motors.
Do you have the stock Ford exhaust on your truck from the turbo down and back other tan no mufflers?
Get a turbo outlet from ATS that goes on a three inch downpipe, them replace the rest of your exhaust with a three inch system with as few bends as posible, and leave the muffler where it is now, in the trash.
The lower back pressure will increase your turbo output and response.
Also install a pyrometer so you know how hot you are getting the combustion chamber to prevent meltdown.
Naturally aspirated, breaths on its own with no help from a turbo or supercharger.
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Elder User
Joined: Mar 2004
Posts: 784
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Hey One Cowboy, I took my soup bowl off as well. I found no need for the thing. Thanks loudwayne for finding out the reason that these things were on there in the first place. Enjoy your rigs.
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From: Monroe, WA
With my turbo kit I was able to retain the original air cleaner. It's a CTS (Canadian version of an early Hypermax), I was using one of those aluminum tops that came off a power pack kit that I got somewhere. It has a modified soup bowl that is not as big as the original. It seems to work well. Probably best if it's just not there though. 
Senior User
Joined: Aug 2003
Posts: 134
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From: bryan/college station
i still have the factory downpipe but when it turns to go back its 3" from there out. i cant find anyone to make a downpipe for the truck around here. oh well, its doing a whole lot better than it was.
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