Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Z Air Duct on a G35c

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Old Apr 18, 2007 | 12:29 AM
  #16  
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^ This is a better new idea. I would do this but I don’t want to risk sucking water into the engine.
 
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Old Apr 18, 2007 | 12:33 AM
  #17  
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Originally Posted by fbw5595
^ This is a better new idea. I would do this but I don’t want to risk sucking water into the engine.
How would you suck water into the engine? The only way water would go into the engine is if you were driving in water as high as the filter. Even if you were driving in rain at 70 MPH the on comming wind wouldnt have enough force to push water straight up a verticle pipe into the air filter. If your filter was were the air duct is and became submerged then you would have to worry, but no way you would have to worry about sucking water in with this set up. Im going to start working on a design tomarrow actually.

-Sean
 
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Old Apr 18, 2007 | 12:33 AM
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Originally Posted by fbw5595
^ This is a better new idea. I would do this but I don’t want to risk sucking water into the engine.
+1 million!
 
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Old Apr 18, 2007 | 12:52 AM
  #19  
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My original plan was to have the duct connected to the filter box directly, with minimal bends. You get more air in your mouth when you put your head out of the window versus keeping it inside.

If you use your air duct position and have a pipe from the duct which ends near the filter, as in your design; I think this would lower the risk of water entering the engine. I also think this would be a pointless mod. It would be like a straw with a whole in it.

If the duct in the lower position attaches directly to the filter via pipe and you drive through a large puddle where enough water is there to cover the air duct opening in its entirety; then you risk sucking that amount of water into the engine. (like a straw)

Leaving it for later, school tomorrow.
 
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Old Apr 18, 2007 | 01:23 AM
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I think it would work, you wouldnt sacrafice low end torque because you would have a short ram set up, but at high speeds you would be getting a extreme ram air effect...

-Sean
 
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Old Apr 18, 2007 | 02:39 AM
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Originally Posted by izmir41500
really ugly if it sat in the grille like that. it would look better in the bumper. it still serves no function either way though.
or in a aftermarket grill like gialla
 
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Old Apr 18, 2007 | 02:40 AM
  #22  
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Originally Posted by nghiars
or in a aftermarket grill like gialla
it wouldnt serve any purpose at all in a gialla grille, lol.
 
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Old Apr 18, 2007 | 10:11 AM
  #23  
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Originally Posted by Nismo G
Naw, it looks pretty bad. Maybe you could design a "CAI" like style that would go from the lower face duct on the bumped directly up to the air filter...like sooo

Just kind of use your imagination of what it would look like and it makes sense

-Sean
sounds like a good idea. Can't see how water would go near the filter unless the area is flooded
 
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Old Apr 18, 2007 | 01:26 PM
  #24  
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Originally Posted by chinaman_87
sounds like a good idea. Can't see how water would go near the filter unless the area is flooded
the position is so low in the diagram that even a modest puddle would result in water entering the opening... Also, there is a theory that being that low to the ground the intake is picking up radiant heat - in the summer months the road gets very hot... I don’t want my intake bringing in a bunch of hot air.

IMO it isn’t a good idea overall… but maybe someone should try and let everyone know how it works.
 
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Old Apr 18, 2007 | 01:30 PM
  #25  
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Originally Posted by OCG35
the position is so low in the diagram that even a modest puddle would result in water entering the opening... Also, there is a theory that being that low to the ground the intake is picking up radiant heat - in the summer months the road gets very hot... I don’t want my intake bringing in a bunch of hot air.

IMO it isn’t a good idea overall… but maybe someone should try and let everyone know how it works.
haha it wouldn't be picking up air that is hotter then what's comming from your engine bay already...as for water there is just no way water could even get in to your filter. The heat from the groud during summer would get to your short ram intake just as easily as if this tube wasn't there.
 
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Old Apr 18, 2007 | 01:39 PM
  #26  
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A low mount scoop + puddle can = hydrolocked engine. I've seen locked engines with stock airboxes.

One has to remember that an engine is alot like a vaccum cleaner in this respect. Ever clean up water with a shop vac? Your engine will do the same given the chance. If you can understand how small of a space is left when the piston rises to TDC, you will understand how little water is necessary to lock an engine up.
 
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Old Apr 18, 2007 | 01:40 PM
  #27  
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Originally Posted by Nismo G
haha it wouldn't be picking up air that is hotter then what's comming from your engine bay already...as for water there is just no way water could even get in to your filter. The heat from the groud during summer would get to your short ram intake just as easily as if this tube wasn't there.
tell that to people that have hydrolocked their motor from this type of thing... Also, CAI doen't suck in engine heat to the extent that radiant heat straight off 3 digit temp asphalt would.
 
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Old Apr 18, 2007 | 01:45 PM
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Originally Posted by Jeff92se
A low mount scoop + puddle can = hydrolocked engine. I've seen locked engines with stock airboxes.

One has to remember that an engine is alot like a vaccum cleaner in this respect. Ever clean up water with a shop vac? Your engine will do the same given the chance. If you can understand how small of a space is left when the piston rises to TDC, you will understand how little water is necessary to lock an engine up.

Dyson needs to make intakes.
 
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Old Apr 18, 2007 | 01:54 PM
  #29  
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Originally Posted by aHero4Eternity
it wouldnt serve any purpose at all in a gialla grille, lol.
i meant it ouwld look better for aesthetics/looks over the oem grill
 
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Old Apr 18, 2007 | 02:02 PM
  #30  
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Ugly.
 
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