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Ultimate A3 Intake

Discussion in 'A3/S3 Forum (8L Chassis)' started by schwartza3, Mar 15, 2014.

  1. schwartza3
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    schwartza3 Member

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    [Mar 15, 2014]
    Hey guys, i recently fitted some 380cc injectors and VR6 maf housing, running the VR6 maf meant the stock air box no longer fit.
    I hate the noise of open filter so I decided to build a custom intake/airbox, starting from the bottom of the bumper. I’ll let the pics do the talking. It took a lot of modeling with carboard, once I got it right, start fabing it up. Terrible at progress photos, but you get the idea.


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    Fitted on the car, the plastic part after the scoop is from a beemer, the outlet is 3.5inch and is the biggest that can fit through the opening next to the battery.

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    Since the A3 bottom of the bumper is restrictive, I decided to open it up a bit.
    The bottom part of the bumper is flimsy plastic so to avoid cutting of bits any further, I folded them over inside and plastic welded the cut edge.

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    This was before I finished sanding.
    I prob should have used a bit of filler to smooth it out further


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    Fitted on the car

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    Seemed a bit too open so installed some mesh on the bottom & repainted.
    Looks a bit like RS type bumper, came out ok I guess.


    [​IMG]


    So after having a better look at the front bar decided to build one from the front as well just like 2L TSI cars, although I borrowed the idea of a scoop from BMW. I’m sure designers intended this opening to be the intake on 1.8t cars like on 2L TSI, anyway here are the pics


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    Some more modeling


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    Opened up the front grill a bit as well for better flow


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    Painted and installed the scoop.


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    Started fabing up the rest of the intake after the scoop.


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    Took my time with this one since its in the engine bay.
    Made some other custom parts to bolt to this


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    All done, painted with some black wrinkle paint


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    Installed in the engine bay, used all existing holes to mount the intake. No drilling needed. Ignore auto meter sticker


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    Pipe to be finished and painted, just making sure it all fits good


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    Model air box, haven't done the pipe from the front intake at the bottom of the bumper yet.


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    S2000 stock air filter, idea borrowed from you guys here!


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    Just started the air box.
    Made a mounting point for the final stage ignition, trying to keep the location as stock as possible.


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    still need to cut out the opening on the right hand side of the box for the pipe from the bottom intake (behind the bumper) and finish off the cover.


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    I'll update the rest as I go and let you all know if it makes any difference haha
    should be ok, every little bit counts
    #1
    CMcKenzie, sssline, xDaNx and 12 others like this.
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  3. s3_trev
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    s3_trev 3 door or no door!

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    [Mar 15, 2014]
    Fantastic bit of fabrication there mate!
    #2
  4. s3 Hoggy
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    s3 Hoggy Whats going on???

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    [Mar 15, 2014]
    brilliant mate!
    #3
  5. VAG-Slag
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    VAG-Slag Active Member

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    [Mar 15, 2014]
    Nice, I like it... Possibly a little over kill but I like it! Good work mate :thumbsup:
    #4
  6. Tricky20vt
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    Tricky20vt Member

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    [Mar 15, 2014]
    Like this a lot!
    #5
  7. s3dave
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    s3dave TFSI Hybrid Supporter

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    [Mar 15, 2014]
    Great Attention to detail...:icon_thumright:
    #6
  8. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Mar 16, 2014]
    I love new ideas especially when they're DIY. Good man :thumbsup:
    #7
  9. s33nyboy12
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    s33nyboy12 Well-Known Member

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    [Mar 16, 2014]
    Very imaginative and clever idea....be interesting to see if it shows real life gains ?.? Thumbs up

    Sean
    #8
  10. Miguel_S#
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    Miguel_S# Member

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    [Mar 16, 2014]
    very interesting, very good
    #9
  11. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Mar 17, 2014]
    good work dude
    #10
  12. MIGGZ
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    MIGGZ nanananananananan BATMAN

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    [Mar 17, 2014]
    WOW!!!!!! this is some insane work! keen to see final outcome
    #11
  13. schwartza3
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    schwartza3 Member

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    [Mar 17, 2014]
    Thanks for the comments guys, I'm really glad you all like it.
    I'm just working on the cover at the moment, I know it looks fairly straight forward but the shape is a bit tricky to get.
    I'll update as I go, thanks again!
    #12
    Airs likes this.
  14. Chlippo
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    Chlippo Member

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    [Mar 18, 2014]
    Respect!
    #13
    schwartza3 likes this.
  15. schwartza3
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    schwartza3 Member

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    [Mar 26, 2014]
    Hey guys, just sorting out the fitment, making sure nothing rubs, trimmed top of the airbox just a little bit and came up with a better solution how to bring the bottom pipe in past the battery into the box, sorry no pics yet. Test drove it and to be honest it feels like the intake at the top would have been sufficient, anyway can't hurt to have another one. Here are some pics of the set up so far.

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    #14
    Airs, xDaNx, Jay A3 and 2 others like this.
  16. S3 Paul
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    S3 Paul Well-Known Member Regional Rep

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    [Mar 26, 2014]
    This is some very very high quality fabrication !
    Well done
    #15
  17. Nilz
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    Nilz Defo worth the wait :)

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    [Mar 26, 2014]
    Looks good and hats off for the time and effort you are putting in!!!
    #16
  18. MIGGZ
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    MIGGZ nanananananananan BATMAN

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    [Mar 27, 2014]
    keen on the logs to see the difference but an amazing job!

    dont suppose you have a build thread of your car?
    #17
  19. Nick_sheep
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    Nick_sheep All The Gears But No Ideas

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    [Mar 28, 2014]
    Nice bit of fabrication. Awesome looking car too.
    #18
  20. Munch
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    Munch Member

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    [Mar 28, 2014]
    I seriously need to learn how to weld!! Always a huge fan of someone brave / clever enough to try something different!
    #19
  21. schwartza3
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    schwartza3 Member

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    [Apr 1, 2014]
    Thanks for the comments guys.
    I'll need to get my vagcom working again, should be able to do a couple of runs to see the difference.
    Sorry Miggz, no proper build thread, I do have a pic thread over at vwwatercooled.ogr.au
    Munch, no welding involved here, just a bit of precision. Anyone with a bit of patience could do this, as Westy mentioned this is definitely a DIY.
    #20
  22. Mi11ar
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    Mi11ar Member

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    [Apr 1, 2014]
    wow very impressive how much for one of my own!? :D
    #21
  23. fanta
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    fanta Member

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    [Apr 1, 2014]
    I like this, but isn't there enough air coming from the wing?
    #22
  24. Munch
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    Munch Member

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    [Apr 1, 2014]
    How is it held together then? Pop rivets? Shall definitely be looking into getting some sheet metal and cardboard to make some bits :)
    #23
  25. MIGGZ
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    MIGGZ nanananananananan BATMAN

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    [Apr 2, 2014]
    could you maybe share a link of said pictures please. sorry for the trouble just really love your car
    #24
  26. MIGGZ
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    MIGGZ nanananananananan BATMAN

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    [Apr 2, 2014]
    could you maybe share a link of said pictures please. sorry for the trouble just really love your car
    #25
    schwartza3 likes this.
  27. Neru
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    Neru Member

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    [Apr 2, 2014]

    this car was inspiration for me when I first bought my a3 4 years ago, Still my favorite 8L
    #26
    schwartza3 and MIGGZ like this.
  28. schwartza3
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    schwartza3 Member

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    [Apr 11, 2014]
    Thanks Neru! my build is nowhere near what you've done with yours though.
    Here is the link Miggz: Few pics of my mk1 - Page 12
    Munch, it's all held by pop rivets, just cut/bend precisely so you only need a few rivets to hold it together.
    Fanta, I'm sure there is enough air coming from the wing/under bonnet, as i said in my first post I mainly did this to reduce the induction noise by enclosing the filter, hopefully it improves the air flow to the filter along the way.
    Finished the opening for the pipe for the bottom intake, will some post some pics later.
    #27
  29. MIGGZ
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    MIGGZ nanananananananan BATMAN

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    [Apr 11, 2014]
    Thanks dude that epic, love the lower lip and roof racks wana see how you did the lower vents
    #28
  30. schwartza3
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    schwartza3 Member

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    [Apr 13, 2014]
    thanks Miggz
    just been finishing off the air box, its getting there.
    i'll need to get different profile rubber seal for the cover and a different one for the new opening.
    Just tried out the rubber seals i had at home and they weren't good enough

    [​IMG]

    [​IMG]
    #29
    jimmcgee likes this.

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