Revi Duct and Stock duct pictures
 

I'm looking for a photographic comparison between the Revi duct and the stock duct that feeds the airbox. I've seen the picture that RB posts on the website, but I'd like to see side by side pictures. I'm trying to figure out why the Revi is more effective. I know the VFAD is gone but what else makes it better?


And this is for anyone who says "use the search feature ".... :bootyshak

The Duct ? or REvi ? They're 2 different things.

If you're talking about the Duct, IT direct air in the FRONT of your car instead of the VFAD on the side. Meaning as your car moves, the air will blow directly into the duct and transfe it to your Intake. Without the control of the VFAD you will be sure that you will always get the most cold air you can have.

If you're talking about Revi. it directs air directly to MAF-Engine. and their design somehow "compress" the mass of air at the enterance. So that way, more air into the engine (instead of the stock Airbox's leave-it-as-is design)

here is the RB duct installed with the front bumper cover removed. The OE VFAD duct resides behind the black rectangular plastic piece shown above the RB duct in this photo, it was removed to install the RB duct though

https://www.rx8club.com/attachment.p...id=74826&stc=1

Ah...now I see. Thanks that helps out a lot!

You guys think this mod adds some kick to the car? How's idle with it installed?

you happen to know the dimension of the ram air duct opening where it attaches to the crossmember?

It's the same size as the oval hole in the crossmember. There is a rubber/foam weatherstrip-like insulation that goes on the edge of the crossmember hole and the duct presses against that one.

i know.. was hoping for some measurments

I have my ram air duct at home, I'll measure it for you tonite if no one has done so.

thanks!

It looks like the Duct took a large surface area of air flow for the radiator.

ok i wasn't sure what you mean't by measurements but i just took whatever. :hahano:

and uhh.. more measurements. lol

the distance from hole to hole on the brackets are about 19 inches but in the picture i hung the other end at the end of the bracket.

What he wanted is the dimensions for the oval tube that presses against the hole in the crossmember. You measured pretty much everything except for that one :p:

I was thinking the same thing.

i just did the install of the revi and air duct. I took some photos along the way.

You can see them here:

http://proxy.searchirc.com/revi/

That looks great, how long did it take you?

about 3 hours :(

I wasted about an hour though because I was screwing around trying to find the proper gasket for one part, and for the metal insert for the bottom of the intake box.. had a hard time putting it through the hole the way the instructions wanted.

The quality of the parts and the way it installs is very impressive. They took their time in making a quality product.

yea, i was hoping for measurements of the oval opening of the duct... trying to see if its feasible to make a nice adapter to the stock airbox

Do you guys feel that the stock bumper allows adequite airflow to the duct? The reason why I ask is because the front grille blocks air flow at the top.

Or is this not a concern because the air duct is low enough to gather all of it's air from the opening at the bottom of the bumper?

Would the MS front bumper allow more air to flow through just because it's completely open in the front?

oops sorry. :rofl:

sorry, been away ...

the duct hole size is 4" tall by 6" wide, it's an oval with 4" diameter ends with a 2" wide straight section between them ...

I would think there's enough airflow for the duct but not anymore for the radiator. BMI Enduro Challenge shows exactly how bad just a license plate mounted at the stock location can impede air flow and causes water overheating. This is when the car is fitted with 2 oil coolers on the Tsukuba track.

The stock bumper has the top of the honey comb area blocked off, but if you look at a car with the duct installed, you'll see the duct was designed to fit in exactly the area that wasn't blocked off.

Basically, the stock bumper does not block off anything.

excellant :smoker: