From cold (hot) air intake to stock airbox on a 03 S6

So for the time being I have been driving and fixing up my fathers 2003 S6. It has a VAST installed JHM tune, gutted piggie pipes and a custom dual 2.5" cat-back. The car has 116k miles on it and probably needs a trans rebuild soon.
I was informed by someone that the JHM stage 1 tune was meant for a stock airbox and that the stock air box was superior to any cold air intake. So I bought a stock airbox. The stock air box showed up with out the snorkle with an old filter and no secondary air hook up.
Before I changed over to the stock airbox, I whipped out my p-box and did a 0-60 in the car. The time was a smokin fast 6.4.
I changed to the stock airbox, re-set the ecu went to the same road, same spot. Ran a 6.0 0-60.
That’s without the good stuff that makes the airbox a high pressure airbox.
I ordered the rest of the ram-air pieces and misc parts missing. I also am ordering a K&N for the box. I’m hoping with some love I can get it to a 5.8-5.7 0-60.
Figured I would post this up, don’t go with anything but a stock airbox!

Well first here are the obligatory questions: Were both runs done in the same stretch of road? Was the car piping Hot and heat soaked the first run?

Assuming the numbers are accurate, that’s some pretty damn good gains. Almost too good when you think that it could equal(guessing) maybe 3 tenths in the quarter which is massive

big round of applause. Thanks I have to say I saw simmilar results but felt gun shy to post them. I saw a giant gain on my car by adding the Air box over the make shift hot air intake.

. Ill tell you what. I bet several 3.0 guys are going to pop in here and say thats just about right. I know the S4 4.2 guys have found this to be true that the stock air box is a great piece. We in the 3.0 land have found that our air box is one of the single most important pieces to helping our performance.

The 3.0 clearly is going to make less power then the S6 but its been proven at the track that the stock air box gets .3-.4 in the 1/4 mile and like 2mph. Keep in mind the 3.0 is a much slower car so those gains are big considering how bad our cats are killing the car.

I think the pressureized air box should help get you into the 5.8 range for sure.

I saw my car really liked the pressurized air box at about 30+mph.

You might want to check the zingo mod for your air box. Its a mod where you actually do the opposite of the B5 guys. You actually close off one of the openings on the air box to allow it to pressurize.

see below what Im talking about

http://audirevolution.net/addons/albums/images/862433931.jpg

Yes, same road. Here was my process. I didn’t have time before installing the intake to let it cool off so I drove it around for 5 minutes lightly at 55mph. Then I let the car idle for 10 minutes then I went and ran the time.
Afterwards I drove it a little while longer to get the oil temp to a similar temp, let it sit, then did the pull.

that’s hilarious. Neat test.

this is the only site you could post this on with out receiving an infraction lol

nice, if the trans goes I have a manual swap kit you could buy… $8k and it comes with a free set of headers and an 2000 A6 too! lol

Great test OP!! Another win for the stock air box.

@beemercer - LOL

hahaha, fucking great post. I was thinking, hmm, expensive “manual swap” and what’s left of the car. . . oh, the rest of the car comes with it!

As a technician I never understood how people get convinced to take out there stock air box. I realize that the gimmickry of the dyno and other attempts to market the open element intake.

The fact remains that when you measure the dimensions of most open element intakes Vs. the stock air filter. The stock air filter most of the time has a larger surface area. This let alone the fact that the Audi air boxes have been feed with a ram air type intake from the front of the car.

Glad to see one more real world test has shown the intake that is the best is the OEM

Glad you guys liked it. I haven’t pulled the data off of the card. I will see if it is still on there. I should have the ram air ducting tomorrow as well though I don’t think it will affect low speed.