New Evo Intercooler for Audi RS2 (S2)

[Tommy200rs]

Question to NorwegianRS2 or someone who installed the evo rs2 IC to factory RS2 x-cross member.

- did the 2x IC attachment bolts fit directly to installation points at rs2 cross member on passenger side ?

Here a picture from that area when installed to S2 with extra attachment part (note the nice air entry mod to oil cooler):

http://www.abload.de/image.php?img=dsc003860bvd.jpg

Some temperature measurements with Wagner ICs (big one for reverse IM and the evo rs2 to original location:

http://www.meckisforum.de/phpBB2/viewtopic.php?p=920798#920798

http://www.meckisforum.de/phpBB2/viewtopic.php?p=947118#947118

[Bram]

You have to remove the old IC bracket from the x member and drill 2 holes as in the picture on the passenger side (LHD car) to mount the new IC bracket

[Bubbel]

Oh 1st Pic is my car

[Tommy200rs]

You have to remove the old IC bracket from the x member and drill 2 holes as in the picture on the passenger side (LHD car) to mount the new IC bracket

I noticed that also and luckily I received the extra support bracket for installation to S2 x member. Without that bracket the evo ic is not a direct bolt on to original rs2 x member which I also have for testing.

[Tommy200rs]

All the same problems discovered, that were mentioned in driftin jo's posting for installation to S2.

http://www.s2forum.com/forum/showpost.php?p=389326&postcount=171

EVO IC's own fitting support at passenger side does not allign to original RS2 support bolt wholes (~1 cm mismatch... ) in X-cross member at passenger side. Additionally the boost hose interface in new cooler is too tight (not machined to same size like in originals). Even with the (modified) extra support bracket the installation is kinky to S2. It is far from bolt on like documented in driftin jo's pictures.

Hopefully the core quality is better than in RS2 from efficiency perspective. IC Core efficiency calculator:

http://www.dragsource.com/index.php?navselect=calculators&calctoview=2

[Lupo911]

Tommy,

we had 2 different Versions, one for S2 and one for RS2 Crossmember.

Since our Last Production, both Parts are the same, S2 just have the additional Stainless Steel Bracket, to mount it on the OEM ABY or 3B Crossmember.

The old S2 Intercooler Version, was not lining up with the ADU Crossmember Holes, thats why we had a S2 and RS2 Version, we fixed that.

When Repo ordered your Coolers, we are send out two S2 Versions...

To mount these Cooler on S2 is quite Easy, Cut the OEM Passenger Side Holder and drill 2 Holes. Done.

The Inlet is Bigger then OEM, thats rigth. We made it 55mm (OEM 49) It will fit tigth with OEM Hose and very easy with all aftermarket hoses.

[LeoLeandro]

hello....
i've try to install the Wagner Evo intercooler on my Audi S2 Coupé 3B
problem is the hose between turbo and intercooler... i can't feet on the intercooler... hole is to big

i've try with the GTM hose for Audi S2 3B.. tryed to cut it and doesn't fit... some milimetters missing.
I've try with a Original Audi RS2 Hose from Venair .... doesn't fit... some milimetters missing.

Some one have a link to a new hose or a tip to help me connecting this hose?

Best regards.

[viken]

Not a bolt on fit and very poor machining

I mounted a wagner rs2 Evo IC on my 1994 rs2 yesterday and it is not a bolt on!

Holes on passangers side does not fit crossmember, the hose connection on the same side is way to big making it a PITA to get the hose on and the oring slot on it was so rough that when I was about to leaktest with soapwater the water went straight in to the intercooler before I had time to put pressure on it.

I had to grind away abount 10mm of the crossmember mount to be able to fit it. Kind of sad since it is a spray painted part, same color as the rest of the car. The cups holding the nuts on the crossmember had to be bent in order to fit the whole thing.

Luckily I did pressurize it before mounting it on the car. 1st time i assembled the whole thing with a new oring, leak tested and it was leaking so much i could not get pressure in it with my compressor.

Took it apart and found a chip from the milling (see pic). Removed that, assembled (with a new oring since the other new one got damaged...) and tested again! But with the same resault. Took it apart again and checked the slot closer. It was so rough that there is no way an oring would seal it. I used sandpaper to grind it down, another hour lost. 3rd time it sealed up.

Then I wonder why the IC is not delivered with new rubbers for the mounts and a new Oring?

But overall it has a nice finish and looks good, hope it works to.

[EspenW]

I mounted a wagner rs2 Evo IC on my 1994 rs2 yesterday and it is not a bolt on!


Then I wonder why the IC is not delivered with new rubbers for the mounts and a new Oring?

But overall it has a nice finish and looks good, hope it works to.

On the o-ring issue: do the so called Mark H mod and bypass the whole o-ring setup:

http://www.s2forum.com/forum/showthread.php?t=193&page=1&pp=15