soup bowl testing
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Senior User
Joined: Feb 2007
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soup bowl testing
i have 3 air filter lids. 2 with out the soup bowl and 1 with soup bowl. i will do some mileage and power experiments to see which one is better.
any sugestions on how and what experamints to try???
btw i have a 89 f350 7.3l na zf5 dully 4:10gears 4x4
any sugestions on how and what experamints to try???
btw i have a 89 f350 7.3l na zf5 dully 4:10gears 4x4
Elder User
Joined: Aug 2007
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it visually looks like a restriction
i thought that also and removed mine
many believe it is an improvement but it is only a perceived one
like i stated i had one year of using the truck with it and its been two years since i removed it and there were no measurable differences
i thought that also and removed mine
many believe it is an improvement but it is only a perceived one
like i stated i had one year of using the truck with it and its been two years since i removed it and there were no measurable differences
Elder User
Joined: Jan 2008
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From: Guymon
I could be wrong but I think the soup bowl would help air flow, not hurt it. Since it is curved, when the air hits it, it gently forces it downward helping to reduce turbulance. I don't see it blocking air flow and creating a restriction.
I also think the soup bowl actually surpresses the intake noise kinda like a muffler. If you take your lid off and run it, you will notice that it is alot louder. Many of ours at work don't have that bowl and you can hear a noticable increase in the loud intake noise. Ford or IHC probably tried to quiet it down cause the engine is already loud enough itself.
Just my point of view.
I also think the soup bowl actually surpresses the intake noise kinda like a muffler. If you take your lid off and run it, you will notice that it is alot louder. Many of ours at work don't have that bowl and you can hear a noticable increase in the loud intake noise. Ford or IHC probably tried to quiet it down cause the engine is already loud enough itself.
Just my point of view.
Posting Guru
Joined: Oct 2005
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From: Powell River B.C.
In my case, I also added a ram air intake along with removing the soup bowl. At the time I did not notice any improvements in milage, however I feel that the acceleration response was better, and the truck didn't slow down as bad when I got to an uphill grade in the highway. As noted above, the biggest improvement in performace comes from increasing exhaust flow. I've also added headers, and turned up fuel. I am very happy with the performace of my truck as it is now set up.
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Cargo Master
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