Air intake tube length

[SilverTJ]

So I was wondering, if you were going to add a snorkel kit or a K&N filter kit wouldn't the length of the intake tube have to be taken into consideration?  Or is air volume determined by tube diameter?  Could you just put a filter directly on the throttle body?

[tubby]

  Could you just put a filter directly on the throttle body?

You could do that? Use a small conical filter that fits under the hood that matches the diameter of the throttle body opening, and secure with a hose clamp. It's been done before and there's a few pictures floating around Jeepforum . The benefits would be small though ,as the filter is sucking up hot air from the engine(take a peek at where your exhaust manifold is)

[Marco]

I would say the length doesnt matter.The diameter will determine cfm.As long as the thing is tight,whatever air comes in one end has to go into engine,i dont think it dissapears.

[SilverTJ]

Isn't it vacuum that causes air to "flow" into the engine?  So the longer the tube is the harder the engine has to work to get the air? 
The reason I'm asking is, an article I read was talking about this and it didn't make sense to me.  So I thought you guys could shed some light.

[mike s]

The length of the tube isn't really a big deal, but diameter should as large as you can make it (within reason). Atmospheric pressure is pushing air into the lower pressure of the evacuated cylinders. The larger diameter tube will allow larger amounts of air in more easily @ WOT and high RPM, but who drives or wheels with the throttle pinned for more than 1% of the time.

The more you can increase the pressure differential between the cylinders and atmosphere, eg. Turbos or blowers, the oxygen volume goes up allowing for more fuel=more HP.

and more broken parts...we used to run a small 2 barrel on the '68 Blazer/PU cause it made for great low RPM throttle response and was a great rev limiter. Kinda would start to flatten out power wise at about 4000 RPM. Also the little carb didn't puke fuel everywhere on angles...

[mike s]

air snorkle can never be too long

[jpthing]

That is just ridiculous. I cannot even begin to imagine being in a jeep cab with water over the roof...I`m scared enough when the tires are fully submerged!

A friend of mine who used to compete in off road races in venezuela told me about a method they would use to prevent water from fouling the distriubutor....they would install one of those cheap little `tire inflator`type air compressors in the cab with an air line run to a fitting on the dist., when they would c ross deep water they hit the switch to partially pressureize the dist., He told me that you could stop in deep water and watch the bubbles pour out of the distributor....

That dude in the video  needs a periscope I`m thinkin!