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Discussion Starter · #1 ·
Hey guys

just bought a K&N induction kit as part of a deal from another
member. Now i know you can just bolt it on but how do i make sure it
gets plenty of cold air and does nt get all the hot air from under the
bonnet! please note i have twin intercoolers so its more difficult! can i use some of the original airbox?

So here are the pics of what i have done. The K&N cone will fit in
the air box, so i cut out the normal intake pipe hole and made it
larger to allow over half the maf to fit inside. The whole filter is
now in with an inch gap to the sides of the intak pipe to allow it
to have fitted in the first place, its not the best so if anyone
has any ideas about how to seal the gaps then id like to hear them. the
sound is amazing now . it really growls! but as its over 20 degrees
down here i am not getting a true feeling as to whether its working cos
its so hot!

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More folk seem to go for a panel filter ( Green are well rated and MAF friendly) in a smoothed airbox. There was a thread ages ago showing some VAGCOM logs with good results for airflow with that mod. The more cold air mod in that scenario would be to run something like 80mm dia tubing from the nsf behind the bumper vents to the airbox.
Maybe you could adapt the 80mm tubing idea to fire cold air at the underbonnet filter?
 

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This is how I've done it...

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The feed pipe is from Wikes, remove the rear cowling from the headlight and it fits down through the gap to the front bumper, judging by how dirty my K&N gets there is plenty of air getting through!
 

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Have you logged the intake temps Scott, as without a sealed box when sat at lights you are going to draw hot air in, fine once you are moving though.

Ian's biggest problem will be where to pickup the cool air from as he has a n/s intercooler, if you are keeping the stock airbox Ian, you will just need to find a location to pickup cool air from low down near the front. If I was you I'd take the front bumper off and find a suitable location.
 

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Discussion Starter · #7 ·
could i just utilise the cold air feed that goes into the airbox anyway? run a pipe off that?

i agree about sitting at the lights when not moving, i dont like the thought of just heating it
 

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I haven't measure it but the homemade box does sit tight against the bonnet soundproofing so seals quite well. I don't tend to sit in traffic much though
 

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Discussion Starter · #9 ·
right guys what do you think of this, if you cut a few inches off the
top if the air box then 90% of the induction kit will fit inside! so it
will mostly have cold air and still have that sucky sound good
 

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But you're going to ruin a perfecrtly good, usable, airbox Ian [:p]

I saw a neat little induction snorkle for the S3 the other night while browsing one of the Audi forums. You've probably seen it but why don't you look at one of those.

The K&N kits are renowned for drawing hot air, you will loose power becuase of it.
 

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Get a lovely PHAT fook off bonnet scoop, and cut a hole in your bonnet.. problem solved.....

plus it looks AMAZING!!!!

[:p][;)]

[:D]
 

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Discussion Starter · #12 ·
But you're going to ruin a perfecrtly good, usable, airbox Ian [:p]

I saw a neat little induction snorkle for the S3 the other night
while browsing one of the Audi forums. You've probably seen it but why
don't you look at one of those.

The K&N kits are renowned for drawing hot air, you will loose power becuase of it.
ive already ordered another airbox if i screw it up anyway. i havent
seen this snorkle. i realise about the hot air, if i cut the end where
the TIP goes in then the entire filter will fit in the airbox!
 

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I'll dig the link out for you, found it while diggin for info on S3's and having a laugh at the pro AmD comments on Audi-Sport.net [:p]

The snorkle routed down to the lower passenger side vent but had a routable bend so it missed the IC. It also didn't block flow to the IC which was what got my attention!
 

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Discussion Starter · #14 ·
cheers i look forward to seeing. i am the only pro JBS person on there
and hate AMD which they find most strange. why were you looking for
info on the S3 do you want one? i know of a black one thats at a
dealers with lightened flywheel,miltek and full suspension set up and
the dealers dont even know!
 

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This is how I've done it...

Posted Image


Posted Image


The feed pipe is from Wikes, remove the rear cowling from the headlight and it fits down through the gap to the front bumper, judging by how dirty my K&N gets there is plenty of air getting through!
That filter looks very small!
 

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Discussion Starter · #16 ·
This is how I've done it...

Posted Image


Posted Image


The feed pipe is from Wikes, remove the rear cowling from the
headlight and it fits down through the gap to the front bumper, judging
by how dirty my K&N gets there is plenty of air getting through!
That filter looks very small!
why does size matter?
 
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