Mickf29

I spent a bit of time looking and obviously there is no cold air system for our RS4's. I also left an email with GMG but no response, may call them tomorrow to talk to see what they or carbonio are developing, if anything, and timeline to release.

In the meantime, i can't wait for something, a bit worried about higher engine temps, so I did a bit of looking around. I think when my car is back Friday, I may pull the intake box back out and look at the space available and the routing necessary for something from where the old flap and horn were on the box. My thoughts are to route it to the area behind the grill where the brake cooling cowls come in. My biggest concern though is water intake if it is wet out. I don't drive through lakes and live in a desert, but want to be extra safe. I did find that some ricer suppliers make a pressure sensing valve that opens to the engine compartment and shuts primary intake. I know many of you may be familiar with these, any experiences with them in the past?

If I can figure out a routing, I will try to make up a solidworks file and share it out, so anyone can have a pipe made up with the right radius bends, etc. Disclaimer though, I have no idea at this point what type of room there is under the box.

If anyone else has messed around with this idea, gotten anywhere let me know.

star607

but it's pretty. Someone on this site has one.<ul><li><a href="http://gruppem.co.jp/matching/products_search/details_en.php?goods_id=1370">Gruppe m</a></li></ul>

scott61

<center><img src="http://pictureposter.audiworld.com/137210/pict0058.jpg"></center><p>I like that, Not that worried about gains would do it more for looks. Already put the carbon Fiber cover on the other side so figure this would be a good match. How much is ¥ 144,900 in US Dollars? And how do you order from them? Thanks Scott

ghoonk

Around USD1500

Reggie

and it sucked water in

Jenner

Do you have more intake tuning/design experience than Audi?

There is so much more to an intake than just sourcing cooler air or "ramming" it.

Just the way the air flows and pulses, the pressure of it and the temperature all make a difference.

Audi engineers know how much air the engine needs at max rpm. They know it needs enough to require our airbox to have 3 different air sources.

I am sure they didn't develope a dual snorkel with vacuum power flap intake system just for fun or to fill up the free space they had.

If you live in a desert why would you remove the power flap?

All this time/effort and money(if you buy or fabricate a "CAI") to have worse performance(or at absolute best the same)? Why?

ghoonk

Regardless, I agree -- I'm almost quite sure that Audi's had all this factored into the holistic design already, and there are very little gains across the rev band from intake mods

Mickf29

Right now with the deflapped lower port on the intake, my oil temps have risen and I would like to get those down to where they once were as soon as possible. Instead of that port sucking engine bay air, would like to run to osa.

Bleu CHEEZE (Loren)

then when it's time, he can blow cold air directly into the intake.

Pure Genius.

Mickf29

But you are missing my point. Several people have deflapped the lower port on the air box to improve pull at 3k-5k rpm, and to make it sound a little growlier. It has accomplished both of these, however because the port is in the engine bay, at lower RPM's the engine oil temp is now a bit higher on freeways and much higher in town. The intent is to route that port to a source of air that is not hot air from the engine. This is not a ricer attempt to gain 6/10ths of a HP by making a Ram air system. This is purely to cool to oil temp at city driving back to normal ~204deg temps, while maintaining the improveed pull at mid RPM's, and improved sound.

BTW the flap has 2 purposes, according to what I have read: One it is a pollution redcution/emmissions device. Second it is a noise reduction device. Other than that i don't think there is any other purpose for the flap. Correct me if I am wrong. Don't think of it as a flap to open up more air to the car at high speeds, think of it as a flap to restrict air at lower speeds to lower emmissions.

BTW Audi engineers are great, i just hope you aren't lumping the DRC engineers into that group.