S2 intercooler to RS2

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  • Paulm
    S2Forum Addict
    • Dec 2003
    • 489

    #1

    S2 intercooler to RS2

    Will this just be a straight fit as far as the hoses go. do i need to cut the ABY hose or have to buy new ones. I know i need to make some sort of bracket to make it fit is that all i need. Just wondering before i strip the car and then get stuck for a part

    cheers

    Paul
    S4 2.7 Twin Turbo, with a few mods
  • Doug_RS2
    S2Forum Possessed
    • Jul 2003
    • 3847
    • Home: Scotland Current: England

    #2
    Should be a straight fit apart from the bracket and maybe a small cut in the plastic oil cooler ducting.
    S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

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    • Paulm
      S2Forum Addict
      • Dec 2003
      • 489

      #3
      cheers Doug good job you are on here

      Paul
      S4 2.7 Twin Turbo, with a few mods

      Comment

      • horvathg
        S2Forum Maniac
        • Dec 2003
        • 556

        #4
        Originally posted by Paulm
        cheers Doug good job you are on here

        Paul
        Paul, are you changing the S2 IC to an RS2 IC? What else are you changing? I was planning the same so I would like to know if any real changes occur due to this swap.
        Gabor

        96 ABY coupe full except sunroof. With Porsche big red brakes, remapped ECU, xenon lights, RS2 MAF

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        • Sidspud
          S2Forum Extremist
          • Jul 2003
          • 1223
          • Home: Scotland Current: United Nations

          #5
          The hoses fit fine, although reattaching them can be a bit of a ******! Mine fell off after 50 miles on my first attempt.
          I think the trick is to have the intercooler and crossmember half off the car when attaching the hose up to the pipe that goes to the throttle body. I ended up lying under the car resting the intercooler on my face whilst tightening up a hose clip.

          As for whether I noticed a difference afterwards - No. BUT - it is essential if you want decent power via an RS2 exhaust manifold and turbo.
          ex '93 Avant owner

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          • horvathg
            S2Forum Maniac
            • Dec 2003
            • 556

            #6
            Originally posted by sidspud
            The hoses fit fine, although reattaching them can be a bit of a ******! Mine fell off after 50 miles on my first attempt.
            I think the trick is to have the intercooler and crossmember half off the car when attaching the hose up to the pipe that goes to the throttle body. I ended up lying under the car resting the intercooler on my face whilst tightening up a hose clip.

            As for whether I noticed a difference afterwards - No. BUT - it is essential if you want decent power via an RS2 exhaust manifold and turbo.
            But wouldn't the bigger capacity IC weeken the car if you don'"t swap the turbo at the same time?
            Gabor

            96 ABY coupe full except sunroof. With Porsche big red brakes, remapped ECU, xenon lights, RS2 MAF

            Comment

            • QuattroFever
              S2Forum Extremist
              • May 2006
              • 1360
              • Country: United Kingdom

              #7
              I wouldn't have thought it would weaken the car, unless your refering to pressure loss. The bigger the IC the closer to ambient temp. you can get the intake temp.

              I'm not sure though as I don't know how efficient the s2 intercooler is.

              ______________________________

              Quattrofever
              Volcano ABY coupe

              Ant

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              • PeterS
                S2Forum Addict
                • Jul 2003
                • 426
                • Country: United States

                #8
                Hmm:

                Too big weakening the car?

                One would think so, BUT...
                Check out the size of the intercooler in Jim Green's monster 90...

                "It's big, the core is 22"x22"x2.5" with 2.5" end tanks, it's heavy, and it flows, a ton. I'm not sure what it came off of, but it's like the large 23 row NPR IC, but on crack with 35 rows!. Everyone said I would never get it in there, well you were wrong! All it took was making a new cross member. The other two intercoolers are my old Porsche 944 and a Daytona Turbo II IC. I only have good things to say, turbo spool up is lightning fast now, not slower like some would think, and holly cow does the car pull at 16 psi. even when it's 95 outside. It feels like the old one did when it was 40 out."

                then take a look at his car's specs and most recent drag times...

                -The Car: 1989 Audi 90 quattro
                -Color: Ginster Gelb, Black Leather
                -Engine: 2.2L I-5 Turbo
                -Suspension: 2Bennett Coil-Over System, Koni Struts
                -Miles: 215,000
                -Best 1/4 mile: 11.48 sec.@122 mph.
                -Dyno, uncorrected 434 whp, 391 ft/lbs 104 octane
                364 whp, 322 ft/lbs. 91 octane
                -Dyno, SAE 544 whp, 491 ft/lbs 104 octane
                SAE 456 whp, 403 ft/lbs. 91 octane


                more info on the car:
                Peter S

                1990 ErsatzS2 - track toy
                1991 Coupe Quattro
                1991 Coupe Quattro
                1995 S6 Sedan
                1995 S6 Wagon

                Comment

                • Greg_S
                  Administrator
                  • Jul 2003
                  • 12431
                  • Country: United Kingdom

                  #9
                  I fitted the RS2 IC to mine without any problems, i modified the bracket to mount it but thats it. Will post some pics later on
                  Greg

                  S2Forum.com Administrator & Webmaster

                  '93 Coupe with a few tweeks

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                  • s2_bo
                    S2Forum Zealot
                    • Oct 2005
                    • 6067
                    • Home: United Kingdom Current: France

                    #10
                    Pics would be great Greg. Im planning this sometime soon too

                    Thanks.

                    Bo
                    91 S2 coupé - RIP
                    98 S8 - Luxury barge

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                    • Jamo
                      Retired OG Mod
                      • Mar 2004
                      • 21750
                      • Country: United Kingdom

                      #11
                      Originally posted by s2_bo
                      Pics would be great Greg. Im planning this sometime soon too

                      Thanks.

                      Bo

                      There's quite a few pics already on the forum including some from Greg.

                      I went RS2 X-member route

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                      • Greg_S
                        Administrator
                        • Jul 2003
                        • 12431
                        • Country: United Kingdom

                        #12
                        Just got back home

                        There are some pics in these two threads, the first is about making the RS2 intercooler bracket and turbo comparison

                        the other is with the IC mounted.

                        HTH
                        Greg

                        S2Forum.com Administrator & Webmaster

                        '93 Coupe with a few tweeks

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