Is there any interest in turbochargers larger than K04's?

Post by **S4RS4** » Tue Nov 23, 2004 8:58 pm

Verrückt wrote:
Dippy wrote:I have assumed that the S4 uses 'standard' K03s from the supplier (Borg-Warner?) and the RS4 uses 'standard' K04s. Am I right or is there such thing as an RS4 turbo?
You are right...kind of.

The S4 uses a K03. However, there are different K03 variants available form KKK. The A4 1.8T also uses a K03, but it's not the same.

The RS4 uses a K04. However, the RS6 also uses a K04 (with larger compressor wheel) and the 225 hp TT also uses a K04.

The RS4 K04 is a specific model of the K04 group. There is nothing inherently special about the turbo other than the geometry of the inlets/outlets for proper fitment.

You are very knowledgeable on this subject!

Post by **Dippy** » Wed Nov 24, 2004 1:49 pm

So which K04 would you recommend for upgrading the S4?

Post by **smurfbus** » Sat Dec 04, 2004 10:58 pm

you can only use the rs4 k04s but you can use the compressor from k04/k16/rs6/k24.

Post by **S4RS4** » Mon Dec 06, 2004 8:43 pm

smurfbus wrote:you can only use the rs4 k04s but you can use the compressor from k04/k16/rs6/k24.

If it helps, I believe the order of size (small to large) is RS4 K04/RS6 K04/K16/K24

Post by **Imolavirus** » Tue Dec 07, 2004 8:00 am

correct

Post by **kamming** » Fri Sep 02, 2005 10:38 am

Where can I buy this turbo? I am from Hong Kong. Thank you.

Post by **fade2grey** » Fri Sep 02, 2005 11:36 am

anyone thought of using garett turbos like the GT28R or something larger?

Post by **Mik** » Sat Sep 03, 2005 12:04 pm

Yup...Autospeed..check this out;

http://forums.audiworld.com/s4/msgs/2087510.phtml

Mik

Post by **eatthis** » Sat Sep 03, 2005 4:44 pm

that graph looks like a n/a motor yum yum

Post by **Julesm** » Sun Sep 11, 2005 2:46 pm

I agree with the suggestion for using something along the lines of a GT28RS with optional compressor wheel sizes. Quite a few of the VW/AUDI 1.8T owners have upgraded to these turbos with amazing results, I posted a thread a year or so ago but got no interest? If I pop back into S4 ownership then I will definitely be looking into upgrading to GT28RSs or similar.

Post by **KayGee** » Mon Sep 12, 2005 9:47 am

Piggie has GT28R turbos on an S4 now....

http://forums.audiworld.com/s4/msgs/2105186.phtml

Post by **Nige_RS4** » Mon Sep 12, 2005 10:17 am

Are there any recommendations in the UK who can rebuild my K04's and fit a larger compressor wheel at competitive pricies. Someone who knows what they are doing!

Post by **Olly_K** » Mon Sep 12, 2005 11:08 am

i've heard good things about http://www.turbodynamics.co.uk/ but never used them myself

Post by **Nige_RS4** » Mon Sep 12, 2005 2:10 pm

Olly_K wrote:i've heard good things about http://www.turbodynamics.co.uk/ but never used them myself

Yeah, me too, but they ain't cheap!

Post by **KayGee** » Tue Sep 13, 2005 7:58 am

Might be worth importing them, I see on AW, AWE are doing new K04s for $2K

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Is there any interest in turbochargers larger than K04's?

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