Another s2 => rs2 project
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milltek exhaust
about the milltek exhaust system, how many bhp will it increase? still available to get?Hi all!
About year ago i decided that i will upgrade my s2 with rs2 parts.
Goal is to get about 370-380 hp and to use original rs2 parts so engine bay will still look almost stock !
List of parts i planed to change :
-rs2 airbox
-rs2 chamshafts with cam pulley
-rs2 exhoust mainfold
-rs2 turbo
-rs2 intake mainfold ( i know it is the same as aby but it is powered by porsche
)
-rs2 downpipe
-rs2 injectors
-complete milltek exhoust 2.75"
-rs2 timing belt and wather pump
Until now i have bought almost all parts.
Rs2 vs S2 airbox:


Milltek:


MANY THANKS TO RUSTY for helping me getting one of the last aby milltek exhoust available for salle
2002 A3 8L
2005 TT 3.2 Quattro
2007 A4 Avant B7 (hers)
2009 100 C4
2009 A6 Avant (hers)
2010 RS2
2010 S2 Saloon
2011 KTM SuperDuke 990 Olive GreenComment
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Good morning
i wrote down numbers from blue plate on turbo. Numbers are:
034145703D
HL50091089 0004
k24 72000
There is also number on compresor housing: 53261015160
i guess it is original rs2 turbo
Audi Coupe S2 1993
Audi V8 4.2 1993
Audi cabrio 1998Comment
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Because it is more that 5 years since cambellt was changed we have changed it too.
Because i am going for rs2 setup i used rs2 cambelt and wather pump.
List of pats i have changed:
-cambelt
-wather pump
-cambelt tensioner
-all bolts for crankpulley
-crank pulley
Parts:

Left rs2 wather pump, right s2 pump


Crank pulley changed. I hardly recommended to change it every time timing belt is being changed... You could imagine what happened if it fails....

As you may already know timing marks on rs2 dont line up perfectly so i have to put timing belt one toth to the left. Thanks god we have s2forum with alot informations !
Fitted and tested:
Audi Coupe S2 1993
Audi V8 4.2 1993
Audi cabrio 1998Comment
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Rs2 turbo was renewed, but they fitted turbo and compresor housing wrong, so i have to undo both housings and refit it in order to fit perfectly to wather and oil lines, downpipe and turbo boost hose.


Tool for fitting turbo:

Plug&play:

Downpipe fitted:

It is pleasure fitting rs2 parts to s2 aby, because you dont have to customize anything, al parts are plug&play
Audi Coupe S2 1993
Audi V8 4.2 1993
Audi cabrio 1998Comment
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Because wastegates have tendency to have leaking diaphragma, cracked housing and worn valve, i have decided to rebuild one from perfect parts.
I have three doner wastegates:

WG dismembered:




New diaphragma installed...

Ready for installation:

WG and downpipe installed:

Audi Coupe S2 1993
Audi V8 4.2 1993
Audi cabrio 1998Comment
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Looks good! did you find a WG with little valve/valve guide wear? The WG's I have opened had a good amount of wear, the valve was quite loose in the guide.Leif-Helge
-91 S2 VEMS and Comp Turbo
-12 B** 530XD Touring "S2 parts transporter, and daily driver"Comment
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Audi Coupe S2 1993
Audi V8 4.2 1993
Audi cabrio 1998Comment
ah o.k sorry for the heartattack






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