Mr.FRU-T-Pants

So would you entertain selling your box?
Dawson's got one, but I haven't gotten a response from him, and he wanted to trade for an RS2 box(big money). Martin offered up an inner fender liner, though I don't know if it's worth it if I can just cut the fender I have.

If you're not willing to sell yours, do you know where I might acquire another, off-hand?

Thanks,

Mr.FRU-T-Pants

That is pretty high. I'll relay that info to my buddy who's under the distinct impression that engine heat soak on a cone filter is a non-event.
I disagreed. Even with a heat shield, I can't see the open-air filter element being very good at sucking anything but flames from the EM, DP, and turbo, even with my headlight removed on the track. Besides, I don't want to have to remove the headlight every time I need performance out of the engine. You need to get that booger installed.

urq20vt

While the RR box fits well, for "ultimate performance" it isn't the hot ticket without at least cutting up the intake. For the expense, I think you could do better making a custom setup using a cone filter and a fabricated box, or maybe a Mustang Cobra airbox like a couple of local S car owners have done. The RR airbox is nice because it is quiet (I doubt you care about that) and it gives a fair amount of clearance to the stock turbo. If you have visions of going to something other than a stock or RS2 exhaust manifold, don't even consider the RR airbox as it will interfere with the turbo.

I cut my car and installed the RR inner fender and airbox. Lots of work and lots of money. The RS2 airbox is much better from a performance point of view, and fits, albeit with modification, the ur q although it is marginal with an RS2 turbo (hits the hood and turbo) and probably won't fit a larger turbo as the cold side would interfere with the airbox.

Mr.FRU-T-Pants

I like the idea of drawing air from the fender wells. There's really no room for another inlet that I can see. We have entertained the idea of a custom airbox around a cone filter. Just thought the RR would be a simpler solution. I *do* like the idea of quiet, actually. I want the car to be as sedate as possible, as I plan to drive it around town a bit. Every fuzz and his brother will have it in for me as it is with the way it's going to look. The exhaust is fairly quiet, with a cat, a resonator, and a Stromung muffler, although it is a 3" system, with the exception of the UrS dp.

I'm running a K26/27, so fitment issues you spoke of could pose a problem. The hood is SQ, but the frame underneath is FG UrQ, so I imagine that clearance is the same. May have to go with a custom setup after all, per your words. For some reason, James seems to think it will fit.

I don't plan on going with a tubular manifold. At most, I'll go with the SQ manny I have lying about. Clearance would definitely be an issue if that were the case, though. If I can get the target power out of the RS2 manifold that's in place, that will be rendered a moot point, and I may put the SQ unit in an S car.

Thanks for the advice. I'll post the results of the solution.

fusilier

Let me call Ken to determine its value and I'll give you a deal on it.

As for fitment.
Here are some pics with RR airbox and RS2 manifold and turbo. If your compressor housing clears the RS2 manifold getting it to clear the Airbox is NO BIG deal at all.

<img src="http://www.bufkinengineering.com/rr_01.JPG">

<img src="http://www.bufkinengineering.com/rr_02.JPG">

Mr.FRU-T-Pants

Anything else needed for that route besides the box itself, like ducting outside the inner fender, etc.?

Also, did you happen to measure intake temps with it in place, specifically, pre-IC temps? Just curious, as Rich reported his with the cone filter in the bay. Seemed pretty high at nearly 300 degrees. What are your thoughts on the RR vs. a custom box around a cone air filter whihc draws from outside the bay?

Cheers,

fusilier

I didn't take measurements, but the RR gets its air from an opening behing the right front headlight. Good filtering. Reasonably compact and made for the urquattro with a 20V motor.

I think it could be improved upon with a custom CF/Aramid airbox, but is that really what you're after or do you want the stock look?

urq20vt

I was under the impression that you were going for a 500hp monster. As long as you stay with the stock size EM you should be fine.

Also remember that with the RR airbox you will want the RR MAF to turbo hose, as it is about an inch longer than the other Audi hoses. The 3B or ABY S2 hose may work as well, but I can't verify that. I guess there may also be a question if that hose will stretch over the inlet of the turbo you are using.

Remember that the stock filters are Euro Audi only. You may be able to find a K&amp;N that will work and Martin may have provided a part number for one that will fit here somewhere if my memory serves me.

Mr.FRU-T-Pants

Nothing in my engine bay, save some reservoirs, is very close to stock. I'm simply looking for a very efficient and compact box to go into the space I have, that doesn't suck air from the bay.

Mr.FRU-T-Pants

We're shooting for 420 at the very least, but that's at the wheels. Components and SW supposedly are designed for about 485whp. But I really don't want to get into it until the dyno speaks. I've heard all the arguments to the contrary, and I don't want to speculate on paper. All I know is what the goal is. Whether we can reach it with the current setup remains to be seen. I'll know in two weeks, and we may be eating crow. But I do know that drawing air from within the engine bay via a cone filter is going to drastically increase intake temps. So that's the current issue at hand.

Again, thanks for the feedback. I think I have a 3B MAF-turbo hose lying around, so that's a possibility to try should the need arise. It's sounding like a decent solution, although a custom box which draws air from about the same place as the RR mightn't be a bad option. I'm going to talk to my fabber to see if it's a possibility within the short term. Mike Sylvester already warned me about the air filter dilemma. It'd be nice to be able to design a system that used a readily available filter element, I admit.

Didn't you do the SW for Phil Packley's car? He's going on the dyno next week, as you may know. We've been chatting on the wb today, and we have very similar setups(and stables, as it turns out).

Cheers,