Calling all inventers
ok! Got a new project. Need some ideas from all yall...
Hood scoops bring cold air into an engine comparment, specifically a cold air intake.. but they are suceptable to water...
Lets design a way to have hood scoops direct air into a CAI without directing water with it as well.
Remember must be hood mounted, not a snorkel.
Hood scoops bring cold air into an engine comparment, specifically a cold air intake.. but they are suceptable to water...
Lets design a way to have hood scoops direct air into a CAI without directing water with it as well.
Remember must be hood mounted, not a snorkel.
CF Veteran
Joined: Apr 2011
Posts: 14,553
Likes: 1
From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
CF Veteran
Joined: Oct 2011
Posts: 1,268
Likes: 1
From: Bakersfield CA
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
What about using the cowl induction off of an old Firebird or Camero. You could set the flap on a manual cable and open or close it at will, and bonus it seals.
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Just run flex tube from the forward facing scoop down to the original air box, any water that makes it in the scoop settles in the bottom of the airbox leaving nice cold fresh air to go through the filter to the intake.
Cowl induction, with the inlet for the air intake filling the opening on the cowl scoop, running down to a factory style air box with the filter in it.
But water can still get to it, even though it isn't facing forward.
But water can still get to it, even though it isn't facing forward.
CF Veteran
Joined: Jul 2012
Posts: 3,686
Likes: 6
From: Hudson, FL
Year: 1999
Model: Cherokee
Engine: 4.0L Inline 6
Use a spiral pipe design to resist water with a sharp propeller at the beginning of the intake to break water particles into a mist.
Let anything that comes through collect at the bottom of the air box and drain out.
Let anything that comes through collect at the bottom of the air box and drain out.
- Rear-facing scoop inlet, so you don't get ram air bringing water with it.
- At the lowest point in the air ducting, have a sump to catch water. Have a drain valve of some variety (spring-loaded poppet is easy - pull it until water stops coming out) and drain it just like you would with an air brake reservoir.
- I would probably go so far as to put a baffle in - it would catch water heavier than "humidity," but still allow air to go past. The baffle bottom should be right about at the "downstream" edge of the sump, so that any water caught by the baffle would drain directly into the sump to be purged later.
First thoughts, anyhow.
- At the lowest point in the air ducting, have a sump to catch water. Have a drain valve of some variety (spring-loaded poppet is easy - pull it until water stops coming out) and drain it just like you would with an air brake reservoir.
- I would probably go so far as to put a baffle in - it would catch water heavier than "humidity," but still allow air to go past. The baffle bottom should be right about at the "downstream" edge of the sump, so that any water caught by the baffle would drain directly into the sump to be purged later.
First thoughts, anyhow.


