Topic Sponsor
2011+ Engine Related Questions Sub-Forum to the new engines that debuted in 2011.

Water ingestion from air intake? not convinced

Thread Tools
 
Search this Thread
 
Old 08-07-2013, 07:18 PM
  #11  
Senior Member
 
mr_diggs's Avatar
 
Join Date: Nov 2011
Posts: 247
Received 19 Likes on 16 Posts
Default

Originally Posted by brucesears
All the EB have about 15 ft of plumbing before it goes to the TB. The intake boxes themselves are all the same.
Ya....I was just being a smartass. The point was that in the NA trucks, there is nowhere for the water/moisture to pool/condense.
Old 08-08-2013, 01:21 AM
  #12  
Senior Member
 
f150man3.5's Avatar
 
Join Date: Dec 2011
Location: ontario
Posts: 914
Received 75 Likes on 55 Posts

Default

Originally Posted by mr_diggs
Ya....I was just being a smartass. The point was that in the NA trucks, there is nowhere for the water/moisture to pool/condense.
The point is...Op was talking about water coming in through the airbox...weather or not it has 15 feet of intake plumbing or not...all should suck in water from the airbox...N/A or not
Old 08-08-2013, 07:03 AM
  #13  
Senior Member
 
MadocHandyman's Avatar
 
Join Date: Jun 2011
Location: Madoc, Ontario
Posts: 5,800
Received 277 Likes on 193 Posts

Default

Originally Posted by f150man3.5
The point is...Op was talking about water coming in through the airbox...weather or not it has 15 feet of intake plumbing or not...all should suck in water from the airbox...N/A or not
I think the difference might compare to drinking out of a glass.
NA - like putting your mouth over the glass and inhaling
Turbo - using a straw

Hope you get the picture, seems like a good analogy in my head ;-)
Old 08-08-2013, 08:04 AM
  #14  
Senior Member
 
11screw50's Avatar
 
Join Date: Feb 2011
Location: Maine
Posts: 2,577
Received 482 Likes on 304 Posts

Default

Originally Posted by MadocHandyman
I think the difference might compare to drinking out of a glass.
NA - like putting your mouth over the glass and inhaling
Turbo - using a straw

Hope you get the picture, seems like a good analogy in my head ;-)
Well, maybe. Depends on the volume of air and size of the passage because really, it is all about the velocity though I do agree that if it were small amounts of water coming in through the intake it might be little enough that it does not affect the NA engines but it pools at a low/slow point in the EB until the velocity of the air increases enough to introduce a large slug of water.

I am still skeptical about this though because the air filter would be wet and to date I have not seen any posts claiming that the filter was wet.
Old 08-08-2013, 12:55 PM
  #15  
Senior Member
 
klumb15's Avatar
 
Join Date: Jul 2009
Location: SE Michigan
Posts: 674
Received 55 Likes on 39 Posts

Default

Originally Posted by MadocHandyman
I think the difference might compare to drinking out of a glass.
NA - like putting your mouth over the glass and inhaling
Turbo - using a straw

Hope you get the picture, seems like a good analogy in my head ;-)
Usually does when you're 10 deep into a 12 pack. Regardless of how a motor makes it power, the air needed to make the same amount of HP is constant. i/e a 365 HP NA motor breathes the same amount of air as a 365 HP turbo motor. At least that's what makes sense in my head

Like already said, water is coming into the intake, only it's in a gaseous state. The only difference is the intercooler condenses it and holds onto it for a while.
Old 08-08-2013, 01:43 PM
  #16  
Senior Member
 
MadocHandyman's Avatar
 
Join Date: Jun 2011
Location: Madoc, Ontario
Posts: 5,800
Received 277 Likes on 193 Posts

Default

Originally Posted by 11screw50
Well, maybe. Depends on the volume of air and size of the passage because really, it is all about the velocity though I do agree that if it were small amounts of water coming in through the intake it might be little enough that it does not affect the NA engines but it pools at a low/slow point in the EB until the velocity of the air increases enough to introduce a large slug of water. I am still skeptical about this though because the air filter would be wet and to date I have not seen any posts claiming that the filter was wet.
Originally Posted by klumb15
Usually does when you're 10 deep into a 12 pack. Regardless of how a motor makes it power, the air needed to make the same amount of HP is constant. i/e a 365 HP NA motor breathes the same amount of air as a 365 HP turbo motor. At least that's what makes sense in my head Like already said, water is coming into the intake, only it's in a gaseous state. The only difference is the intercooler condenses it and holds onto it for a while.
I get it but what I'm getting at is if there is liquid water getting into the intake box as GermanEB suggested, it is getting sucked into the airstream before it has a chance to drain out of the box. That's assuming there is a drain in the bottom.
The NA engine doesn't have the suction a turbo would so it gets to drain away.
I don't recall anyone checking their filter to see if it was damp after an episode.
Old 08-08-2013, 02:13 PM
  #17  
Senior Member/Vietnam Vet
 
SkiSmuggs's Avatar
 
Join Date: Sep 2010
Location: Northern Vermont
Posts: 2,603
Received 539 Likes on 369 Posts

Default

Wouldn't the water be atomized as it is sucked in via the airbox? And wouldn't the volume of air flowing through the filter dry the filter out very quickly? Yet, you could still have air with the maximum humidity now going through the IC and condensing where it could now settle and be gulped at WOT. Just making guesses here, but then water ingested into the airbox would exacerbate the problem. Or maybe this was just an opportunity to use the word "exacerbate."

Last edited by SkiSmuggs; 08-08-2013 at 02:17 PM.
Old 08-08-2013, 02:33 PM
  #18  
Senior Member
 
MadocHandyman's Avatar
 
Join Date: Jun 2011
Location: Madoc, Ontario
Posts: 5,800
Received 277 Likes on 193 Posts

Default

Originally Posted by SkiSmuggs
Wouldn't the water be atomized as it is sucked in via the airbox? And wouldn't the volume of air flowing through the filter dry the filter out very quickly? Yet, you could still have air with the maximum humidity now going through the IC and condensing where it could now settle and be gulped at WOT. Just making guesses here, but then water ingested into the airbox would exacerbate the problem. Or maybe this was just an opportunity to use the word "exacerbate."
Exactly! You'll have more water in the air because it's not draining making it worse than NA. Adding all those spots for it to condense just makes things even worse.
Old 08-08-2013, 09:42 PM
  #19  
Love My Eco
 
19KFX4's Avatar
 
Join Date: Jul 2011
Location: Alabama
Posts: 732
Received 38 Likes on 35 Posts

Default

Ive never had either problem, though i've never checked my IC to see for condensation, how would i go about doing that. anyways, my tuner is working fine, i'mgetting normal gas mileage, with no shutter, no st-udder, no loss of power, its been running normal for 28k love my Eco
Old 08-09-2013, 08:51 AM
  #20  
Senior Member
 
11screw50's Avatar
 
Join Date: Feb 2011
Location: Maine
Posts: 2,577
Received 482 Likes on 304 Posts

Default

Originally Posted by SkiSmuggs
Wouldn't the water be atomized as it is sucked in via the airbox? And wouldn't the volume of air flowing through the filter dry the filter out very quickly? Yet, you could still have air with the maximum humidity now going through the IC and condensing where it could now settle and be gulped at WOT. Just making guesses here, but then water ingested into the airbox would exacerbate the problem. Or maybe this was just an opportunity to use the word "exacerbate."
If the air is saturated, it will not dry the filter very quickly, if the air is not saturated, it is less likely to drop below dew point and if it does not drop below dew point, the water will not condense out.

As for water atomizing, maybe (sort of) but only if the air is not saturated as it passes through the airbox. If it is saturated, it cannot pick up any more water.

Either way, the water entering the system would be in vapor form, not droplets.

I still think it is a case of saturated air entering the system (not air being saturated by picking up water in the filter box) and condensing in the system. Light throttle means lower air flow to the engine, highway speeds means high flow across the outside of the coil. Add in rain or fog and now you've got a wet surface on the outside and evaporative cooling transferring even more heat away from the air inside...that would raise the potential for dropping the intake air below dew point. It appears the intercooler is too effective under those conditions.


Quick Reply: Water ingestion from air intake? not convinced



All times are GMT -4. The time now is 09:51 AM.