GIDDY UP!!

 

NICE WORK!

 

Yunno, after looking at your pics, I tend to agree with you. This area is screaming for a "screen" of some sort. This would allow the optimum amount of air and still block small children and other "rice" devices from entering the engine compartment.

I was having my oil changed the other day and the tech's (ie. local hacknitions,) attempted to remove that ridiculous what ever from the scoop. They got so far and decided to give up, but I got the feel of it's removal and I think I'm going to remove it, size up a "black" screen of some sort and re-install it in that space.

Not totally sure if I can do it, but WTF, I'm a freaking dentist.

 

http://www.marketworks.com/storefron...spx?sfid=56674

 

bushman66,

I checked out the link and they look good, however, they don't make a screen for the R56, only 02 -06's I believe. They do sell the raw screen however and I imagine it could be shaped to fit.

 

yes...you can buy a small piece of screen for $10 and make your own. That's my plan...

 

I have yet to disassemble the existing piece and not too sure how it is held in place. Have you any plans for stabilizing it?

I wonder how long the "high polish" that they talked about in the link will last? I have polishing lathes at work and could get it shining, but don't know how long this shine would be retained? I've really grown to love the chrome trim with the dark silver and would like to see more shine!

 

I'm no expert on aerodynamics, but those look horrible for quality airflow. I have been looking at various screens and meshes to replace my stock scoop grille and a simple test of blowing through the various materials onto my hand shows that the openings need to be large for good flow. That "hole punch" pattern would be terrible for smooth airflow to the back of the engine bay where the CAI would sit.

 

Can't imagine the airflow dynamics has that much to do with anything? As long as cool air is getting into the engine compartment, as I dont think any kind of "ram air" effect has much bearing on the HP numbers...

 

I am not even thinking of a rem air effect. I was thinking purely from an available airflow point of view. The "hole punch" grille just looks like it would build pressure in front of the grille and prevent even a minimal amount of sufficient airflow. Less than the stock "open" grille. More bling than benefit?

 

MiniJayhawk,

I guess that your state's motto holds true for you! (the show me state!)

Tell me! Just how much air is now getting to the CAI with the stock plate covering the hood's intake? How would a screen that allows 63% air flow be any worse and all about bling? I'm sure that the screen would restrict the flow somewhat, but it couldn't be any more than punching out the sections of the stock cover.

Why do door manufacturers make screen doors and window screens in homes? How much air flow is restricted into the house via the window screen or by the screen door? Very little from my experience.

In fact, I believe that if you were to measure the surface area of the screen over the punched out stock grill, you'd find a whole lot more air space in the screen.

 

Charlie, I'll thank you not to assume I am one of those people from Mizzery. Kansan, through and through.

However, the % of open space isn't any more relevant than the shape of the openings. I would bet the "chicken wire" options would be closer to 90% open space, if not more. And 63% relates to open area, not flow. I have compared comperable open space % meshes and the shape of the openings matters quite a bit. From my experience, the punch hole openings would be one of the worst for actual flow rate.

QUOTE:

I would like to see how they came up with the term "Super Hi Flow" Aluminum. What I recall from studying fluid dynamics years ago was that a circular opening causes back pressure that has to be overcome by the creation of a vortex, all of which reduces flow rate. A non-circular shape (square, diamond, oval, etc.) has uneven pressure across the opening that allows a higher flow rate (and higher velocity) through the lower pressure points in the opening. That is why "chicken wire" is probably more "Super Hi Flow" than the grilles these guys sell. I would imagine the stock grille with the holes opened up would also provide more flow due to their shape and relatively large hole openings.[/SIZE]

 

Oh, you mean..........."The Others"? So sorry........ my bad and I apologize if it is a problem. I like Missourianites! (at least give me credit for knowing the motto).

Still don't agree with you, but I'm sure you're convinced and I'll agree to disagree. Keeping it simple, once the air gets behind the screen, it's available for the CAI. It's not forced into the intake and my unmeasured guess is that the intake is a good 12 inches or so from the grill opening. The engine compartment is not a sealed area. The forces would be diminished by the time it hits the intake, as it is just sucking in any air that is availble at the opening. If it were sealed from the grill to the intake, I might agree with you.

My guess is also just opinion and I know well what my foot tastes like! Have a great day my friend!

 

I did forget to add a line at the end stating: "OK now, tell me that I don't remember fluid dynamics very well, and why."

I think we agree on the principal of it all, just not on the solution to getting air in the engine compartment. Your comment that "the engine compartment is not a sealed area" is the key to it for me, and I agree. I want as much outside air filling the engine bay as possible and pushing out the pre-existing heated air. I have no dilusions that the scoop works as a ram air system, even with the DDM setup. I just want the largest amount of outside air being pushed into the engine bay to displace existing air being heated by the engine. That way the cone filter has as much cooler air as possible from which to suck. (Did I just type that? )

I just am not convinced the punch-hole screen in this thread is an effective solution.

 

MiniJay,

Have you noticed that no one else has ventured into this discussion? Hmmmmm? Maybe you and I are thinking too deeply for the crowd!

 

I like my cut outs!

 

Hey Dye,

What's behind the trim piece? You don't happen to have a picture of the piece that you cut the holes in do you? I was having my oil changed and the kid working there said: "did you know that your scoop is n't working!" I said "yeah, I've heard! " He asked if I wanted him to remove that piece and I said "why not?"

He worked for the next 10 mins trying to get the piece out and seemed to get to a certain point, but then gave up. I wondered why and he mumbled something about they're being two screws and then two other screws.....etc. and I was in a hurry.....etc.

How hard is it?

 

Wow Apexer,

I originally was from Uniontown, Pa. I lived up in Craig Meadows. Where are you?

 

Open the hood, look for a 2" black rubber stopper. Remove.Unsrew phillips screw. Pull up on hood scoop firmly. Black piece is held in by 4 screws.

 

I decided to try to open up the blockages and here's what I got!

 

I'm such a computer dolt! but here is my grill opened.

 

With the scoop fully open, that lip would act as a spoiler to put downforce on the hood. Didn't someone else have a concern about the bonnet blowing off?

 

Never heard about the bonnet possibly blowing off. There are 2 hold downs for the latching system though, that seems pretty strong. I have decided to leave that lip, seems water would have a direct line in under the hood. I think that lip is there for a reason.

 

Looks great! How did you do yours?

 

I turned that little lip down when I did my CAI install. Soft metal so be careful and don't scratch it. Underside view, frint view, and with light behind to show that it REALLY increases the open area.







You can see the red cone filter in the back on this one. the filter is sitting on the bottom of the stock airbox.