AAI (Ambient Air Intake)
#26
Rotary Freak
Join Date: Dec 2006
Location: New Hampshire
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Oh, and my horsepower went from 180 at the wheels to 290.
I have a collector in my brake duct running up through the fender and then sealing directly into the end of my air filter. I think I am getting good flow because I am constantly getting bugs, leaves and other crap stuck in my filter. Oh, and my horsepower went from 180 at the wheels to 290.
Oh, and the "cold air" thing is all relative. 70 deg is 1/2 of engine bay temps... so it's relatively cold.
#27
Why did you choose to go through the front near the radiator instead of the usual down throught the fender and collect via the brake duct? I would think having the air collect throught the duct gives you fast moving ambient air rather somewhat stagnent/swirling air behind the bumper.
Furthermore, this type of setup means there is no fabrication of a box in the engine bay i.e., it was dead simple to do.
I wonder why you think that the brake duct is full of "fast moving ambient air" while the much larger nose intake (located at the same level) is "stagnant/swirling" but, absent any sort of temp/airflow data for the two areas I can't make an argument either way.
It did seem that my method provided the greatest protection to the air filter, a supposition the past few weeks have borne out. The car has driven in rain and wallowed through a few large puddles with the filter remaining dry and unaffected.
Originally Posted by alexdimen
You don't have any radiator ducts... is that panel on top of all that supposed to be a stand in for them?
In fact, having spent considerable time looking at that whole area (the front nose/intake) I'm kinda thinking that the top of that space is less important than the sides.
While working on other aspects of the bay I've run the car without the top panel in place ( a quick run to the hardware store, etc.) and seen no temp spikes because of it.
It would appear that the sealing strips on the front of the hood actually do a pretty good job.
Making some close fitting panels on the sides though looks like it would really improve airflow to the coolers- forcing air through them rather than spilling out the side...it's a project that on the list (albeit rather far down, ATM).
#28
I really Schruted it
Join Date: Sep 2006
Location: Grand Rapids, MI
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This is my system. I never called it ram air but it is sealed directly to the filter.
My thinking was that all the air collected in the brake duct only has one direction of flow and it all has to go into the end of the filter. With it in front of the bumper, the air collected is only what the engine pulls in through the filter. If you lowered the filter and put it directly in the path of of exposed air, I think you would have better results.
I was kidding about the HP going from 180 to 290.
For everyone out there who is about to tell us this is all meaningless and we aren't gaining any power... I know.
Brian
My thinking was that all the air collected in the brake duct only has one direction of flow and it all has to go into the end of the filter. With it in front of the bumper, the air collected is only what the engine pulls in through the filter. If you lowered the filter and put it directly in the path of of exposed air, I think you would have better results.
I was kidding about the HP going from 180 to 290.
For everyone out there who is about to tell us this is all meaningless and we aren't gaining any power... I know.
Brian
#32
ya dyno if able. with the intake right next to to radiator and hose it will probably heatthe intake air a little defeatin the purpose of a aai. correct me if im wrong.
#33
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