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 Vacuum motor check valves 
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Joined: Fri Jul 13, 2012 11:43 pm
Posts: 9
I have my depression fitting in the top of my plenum box.

It matters where you pull it from?


Tue Dec 05, 2017 8:30 pm
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Joined: Fri Jan 08, 2010 10:36 pm
Posts: 1157
Location: Maryland
Then i would say most likely you are running up against the limitation of the design.

Rick


Tue Dec 05, 2017 8:34 pm
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Joined: Fri Jan 08, 2010 3:35 pm
Posts: 1650
Location: Pennsylvania
jcisalive wrote:
I would not be able to use two 3" pipes because the air flow sensor is in the 3" pipe



What kind of flow sensor?

Is that blocking flow?

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Bruce

Who . . . me? I stayed at a Holiday in Express . . .


Tue Dec 05, 2017 9:25 pm
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Joined: Fri Jul 13, 2012 11:43 pm
Posts: 9
Thanks for the replies

It is like a mass air sensor.

It goes through center of the pipe and has a diameter of a pencil if I recall correctly.

I have two pieces of honycolmb air straightener before and two after the sensor. Maybe I will try flowing with one and see if it makes a difference. If it does I will take the other two out to see how that works.


Thu Dec 07, 2017 2:27 pm
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Joined: Fri Jan 08, 2010 10:36 pm
Posts: 1157
Location: Maryland
as Bruce leading to, if you test the pressure at the motor box and compare it to your test pressure i am sure you will see the 3" tube at high flow starts to become a restriction.


Fri Dec 08, 2017 11:08 am
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Joined: Fri Jul 13, 2012 11:43 pm
Posts: 9
Thank you for the replies. I am very busy these days but I will test a few things in the next week or so and report back what I come up with.


Sat Dec 09, 2017 5:41 pm
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