K03 turbo information - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• K03 turbo information by coke on 10 Jan, 2011 17:19
• Looking for some information on the K03 turbocharger. My understanding is it was used on the 1.9L AAZ turbo diesel. I have been advised that the K03 would be a good turbo to use on my 1.6L NA that I plan on turbo'ing.
  
  Now, exhaust manifold won't be a problem. Its my understanding that the TDI exhaust manifold will mate to the K03 just fine.  My issue is what to do about a downpipe.  I could use a stock downpipe, or an after-market one.  What do you guys recommend? I've noticed a few different exhaust connections (Probably diesel vs gas) and searched this forum. Found a lot of posts about people looking for downpipes, but not finding much. A quick eBay search didn't turn up much either.
  
  Sorry for my newbish questions, but when it comes to the world of turbos, im in kindergarten. I am pretty set on the K03. A trusted source told me that the K03 would be best on an NA with a Giles pump. Just need some verification on the TDI exhaust manifold and downpipe options. Thanks guys, I _really_ appreciate it.
• #1 by rallydiesel on 10 Jan, 2011 17:37
• There's lots of k03's out there. It was a turbo used on the VAG 1.8t engines. You have to be specific when dealing with turbos. The gas k03 will not be the same as the diesel k03. I don't know any particulars about it but I'm sure some people on here have used it.
• #2 by GEE-BEE on 10 Jan, 2011 19:20
• You will need a Ko3 exhaust manifold since it's different also
  
  the intake boot is different also for the KO3 ( turbo to manifold  )
  
  Iam have a ko4 hot side with a KO3 cold side built by gpopshop, There is a ebay seller selling new KO3 for what a ohc would cost
  
  Techtonic's tuning can do your DP in 2.5 if you want
  
  What platform is your install ?
  GB
  
  HERE IS A 1.9AAZ Exhaust and turbo K14 on ebay germany
  150546261172
  
  K14 downpipe
  160520431381
  
• #3 by coke on 10 Jan, 2011 19:26
• Forgive my ignorance.  The K03 uses the same bolt pattern as the TDI exhaust manifold right? So I could use that?
  
  What did you mean by platform is my install? It's going on a 1.6L NA with a Giles pump.
  
  Is techtonic's tuning a vendor here or something?
• #4 by GEE-BEE on 10 Jan, 2011 19:32
•  270631700783
  1.9 aaz Intake
  
  Ebay germany
  
  Installing in what body ( Platform) mki/ mkii
  
  
  use a 1.9 aaz head also
• #5 by coke on 10 Jan, 2011 19:34
• I'm just strapping a turbo onto my 1.6. Its an MK2 Jetta, 1991.
  
  Unless I get lucky and find a turbo motor guts and all, then I'll take the time to rebuild from the bottom up.
• #6 by GEE-BEE on 10 Jan, 2011 19:39
• Techtonicstuning.com is mfg of exhaust systems and make downpipes
  
  Mk1 1.6 td
  mk1 1.9 td ( taller ) either turbo model
  
  You will need a exhaust manifold to match the KO3, they were mfg with and without egr
  
  I would do a  intake, exhaust all to match the
  
  If you need a mk1 td snorkel for what ever turbo let me know
  
  The snorkel's are different as the turbo's have different inlet size
  
  I had to mfg the snorkel for just my application ( mk1 td airbox ) with ko3 small inlet
  
  GB
• #7 by GEE-BEE on 10 Jan, 2011 19:41
• mkii snorkel ( stock) wont fit the ko3 inlet, smaller than the k14 or T3 turbo
  
  I can make the mkii snorkel's in either size inlet, same side for the mkii airbox thou
  
  GB
• #8 by coke on 10 Jan, 2011 19:44
• Yeah. Hows that work, ordering from eBay germany?  Does paypal do the funds conversion and whatnot? Use google translate to communicate with the buyer?
  
  I didn't see any MKII downpipes on the tuning site you showed.
  
  As far as the snorken, and all that, it'd all have to be custom. I don't intend on using a stock td airbox. Probably a K&N filter or something attached to some pipe directly into the turbo.
• #9 by mystery3 on 10 Jan, 2011 21:19
• Germans generally speak english more fluently than americans.
  
  Techtonics tuning often referred to simply as tt can make you a down pipe for mkII install with whatever flange for your turbo, they probably don't list the application because there isn't much interest.
• #10 by coke on 10 Jan, 2011 21:28
• Ok. Well for all intents and purposes, lets assume I'm using the K03 from a 1.9L AAZ. The TDI manifold with the 3 bolt triangle flange should bolt to this turbo, right?
  
  All that leaves for figuring out is an exhaust connection.  I'm going to go look some more but I'm having a hard time finding a K03 listed specifically for the AAZ that shows the exhaust connection so I know what to look for in a downpipe.
• #11 by GEE-BEE on 10 Jan, 2011 21:55
• Iam not sure on the TDI exhaust manifold install / KO3 fitment
  
  Good luck
  
  Drill/tap/ceramic coat before install
  
  talk with Josh at Techtonicstuning
  
  I supplied him with both manifolds and turbo's for the AAZ downpipe
  2.5 s/s is the way to go
  
  GB
• #12 by rabbitman on 11 Jan, 2011 18:43
• Quote from: coke on 10 Jan, 2011 21:28

  Ok. Well for all intents and purposes, lets assume I'm using the K03 from a 1.9L AAZ. The TDI manifold with the 3 bolt triangle flange should bolt to this turbo, right?
  
  All that leaves for figuring out is an exhaust connection.  I'm going to go look some more but I'm having a hard time finding a K03 listed specifically for the AAZ that shows the exhaust connection so I know what to look for in a downpipe.
  

  
  Euro manifolds are a little harder to get this side of the pond.
• #13 by GEE-BEE on 12 Jan, 2011 07:31
• I got a complete intake, exhust and turbo shipped for 65.00 from gemany
  
  GB
• #14 by ilikevwdiesel on 12 Jan, 2011 12:07
• I have everything you need right here and you're welcome to drop by anytime.