Airflow isn't quite linear enough right there to use a NACA duct. Closer back towards the stock box location, and you're getting closer. Above the TB any opening would work really, since that's more an area of collision rather than flow.

 

The head lamp would be a great spot...I think FBT's drag Mini did just that...it looks like they removed the cover and the low beam for an intake...Downside...it looks bad...

 

amazing what a little proding will do

so in your estimation how tall would the scoop have to be if over the CAI?

 

Maybe 5"?

 

terrific - when do we start making the hole in your hood?

 

Already answered by Will.

 

Cool, now we got Will in on the deal!

I don't think FBT was too worried about appearance aspect. A nice little opening just inside the headlight could be a good source for good air.

 

Sid got me thinking though. I have my seat set pretty low so I have never watched rain on the hood to see how it flows. Without a wind tunnel that's about the next best option.


Anybody watch the rain blow around on their hood?

 

When I install the louvers

 

The cowl isn't a low pressure zone.
I measured it years ago with Andy's help.
It actually develops high pressure but didn't register on his Magnehelic until ~50mph. Even at 80 mph is was on the order of something less than 1 psi.

No measurable difference if the pickup was pointing down or upwards in the cowl.

 

I don't think it would have to be 5" high if it's facing forward.

In truth, this is a pretty easy setup, complete with ram air, water catch and drain, and all the goodies. It's a little difficult to explain, but the air goes in, is routed 180 degrees, through a panel filter, and down to the TB. If you can convince obehave to cut up his car, I'll be happy to go to the Hamptons and help him build it.

 

Where did you measure at?

 

Is the scoop above the air box or throttle body?
Do you already have a parts list?
any drawings? pics?
I want to keep the intake tract as short as possible

 

Parts list would mostly be aluminum sheet. The scoop would sit approximately where Sid's louvres are sitting, though in a direct path with the airbox. Scoop opening would be maybe 3" high and 5-8" wide, I'll have to play with the numbers a little. Maybe I can mock up a drawing or two tonight.

 

Uuuuhhhh.......hmmmmmmm...No!

It's Hampton not "The Hamptons" big difference. Don't want people thinking I have money they might start hitting me up for something I don't have.

 

Yeah, I used to live down that way. Definately not the Hamptons, but it's easier than saying Hampton Roads.

I might play with this on my spare hood after I get my upcoming project completed on the new hood.

 

Like to see that. Even if I have to drive to Richmond

 

Yes and No. Yes in that I direct the airflow to the Alta airbox, that as we all know, does not seal the top entirely. NO, in that it is not a complete path. The shape of the hood, just over the filter - inside the Alta airbox, has a curved down shape that redirects the air down to the filter box. I realize that right now is not ideal. But it proves the concept.

I did cut the foam at the opening in the back,where the air exits, so it is a direct shot to the the airbox with the plastic tube aiming the air. My filter is very dirty on the top area, so I know that the air is going there. The gap between the air tube and the airbox also helps to keep most of the water away from the element.

To me, SAI solves a problem, vortex over the IC. It can be used to direct air to the airbox or if HAI or AGS is used, to either set up.


Bomboasy

 

Sid, a poster in another thread got me thinking about what happens to the air that passes through the DFIC (or any other opening to the underhood area). Would there be any appreciable upside to seeking a way to utilize the low pressure area at the base of the windshield to pull air through the DFIC and out of the engine bay?

 

Yes...That's exactly the reason I'm cutting two huge holes into my hood and hence, "Project M7 Louver" thread Using the cowl as an extraction point is not as effective due to the proximity to high pressure just above it higher up on the windshield and the route is quite ciruitous...also requires cutting/removing much of the plastic underhood shrouds...

When I say the cowl area is "low pressure"...that is relative...it is more like neutral stagnant...on the other hand, the area above the hood surface is relatively flat and more likely to have a high flow boundary layer to take advantage of the reverse louvers to extract hot air directly behind the DFIC...

 

I'm thinking left side for the DFIC and the right side for DAI (direct air intake)

 

Any ideas for those of us "less adventurous" types that aren't quite ready (or have spousal approval ) to cut the hood?

If we could cut smaller openings, would a conceptual "naca duct in reverse" (i.e. mounted to pull air from under the hood to the outside) work? It would be an elegant solution, and look cool too!

 

OK ... I did this long ago

I "opened up the drivers side of the grill and fabricated this.

 

what is it?

 

I was answering the original post.

Air to intake

Opened grill
"duct" to chanel outside air .. to inlet area

Other photos in gallery