Oil cooler advice

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • AndyP
    S2Forum Zealot
    • Feb 2004
    • 6049
    • Country: England

    #1

    Oil cooler advice

    I need to uprate my oil cooler, the std 3B is struggleing to cope now I've uprated the engine. Question is, is a 330x100x50mm 13row cooler going to be big enough to cope with say, 500bhp?
    I want to keep the cooler in the std postion, hence trying to keep to this size.
    Last edited by AndyP; 29 January 2011, 22:13.
    sigpic
    1991 Audi S2 3B - 2.5 Stroker engine
    1997 A6 2.5TDi quattro avant - C4
    1976 RD250E / 350LC cafe racer
  • europeanme
    S2Forum Possessed
    • Oct 2005
    • 3817
    • Country: United Kingdom

    #2
    anything come off this Andy??...

    mines is leaking like a winning actress on oscar night...

    Comment

    • AndyP
      S2Forum Zealot
      • Feb 2004
      • 6049
      • Country: England

      #3
      Yes and no! I've got the cooler and it will fit in the stock location, I'm just having a nightmare trying to get hoses made to connect it up. Got some more parts to try this weekend.
      sigpic
      1991 Audi S2 3B - 2.5 Stroker engine
      1997 A6 2.5TDi quattro avant - C4
      1976 RD250E / 350LC cafe racer

      Comment

      • GT500
        S2Forum Fiend
        • Jun 2006
        • 2181
        • Country: United Kingdom

        #4
        I ran the same size on the race car, 200 bhp K series... needed a 19 row in the end! Bigger the better as the lady said to the bishop!
        Rob..
        94 RS2 Noggy,LHD,MTM map,18"cup 1s,245/35/18,Bilsteins,RS2 H&Rs,Cup splitter.
        87 UR 20v ABY
        97 S6 Avant
        96 A6 C4 2.5 TDI quattro avant,Ming,Wietec/eibach,chipped
        1967 Ford Mustang,Eleanor,460ci v8

        Comment

        • 20Vcqdriver
          S2Forum Maniac
          • Jun 2007
          • 829
          • Country: United Kingdom

          #5
          Dump the Aux water rad and fit a 25row oil cooler instead as I did, keeps my oil below 110degrees now whatever the condirions
          Attached Files
          1986 Coupe q - 2281cc 3B, chargecooler, 2.75" exh & downpipe, ported head, water injection, CGR box, modified MD357 turbo, 440cc injectors, high power coil.
          2004 A4 2.5TDi convertible, re-mapped to 180bhp
          2011 A5 sportback 3TDi-Backbox delete, remap

          Comment

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

            #6
            Speak to A80avant he has an aftermarket oil cooler in stock location on his old project thread.
            Attached Files

            Comment

            • Rusty
              Super Moderator
              • Jun 2004
              • 18953
              • Country: United Kingdom

              #7
              Is the oil cooler not controlled by a thermostat in the filter housing?

              EDIT:-

              Yes it is. Depending on what the thermostat opening temperaure is set at or if the thermostat isn't operating correctly, a larger oil cooler isn't going to make it run any cooler... Worth checking.

              Last edited by Rusty; 18 March 2011, 10:54.
              Cheers'en, AndyC
              1994 ABY Coupe - Projekt Alpinweiss

              Comment

              • AndyP
                S2Forum Zealot
                • Feb 2004
                • 6049
                • Country: England

                #8
                Originally posted by Jamo
                Speak to A80avant he has an aftermarket oil cooler in stock location on his old project thread.
                He had to cut the towing eye off to get his fitted, not keen on doing that as it might come in handy one day.
                sigpic
                1991 Audi S2 3B - 2.5 Stroker engine
                1997 A6 2.5TDi quattro avant - C4
                1976 RD250E / 350LC cafe racer

                Comment

                • AndyP
                  S2Forum Zealot
                  • Feb 2004
                  • 6049
                  • Country: England

                  #9
                  Originally posted by Rusty
                  Is the oil cooler not controlled by a thermostat in the filter housing?

                  EDIT:-

                  Yes it is. Depending on what the thermostat opening temperaure is set at or if the thermostat isn't operating correctly, a larger oil cooler isn't going to make it run any cooler... Worth checking.

                  http://www.s2forum.com/forum/showpos...69&postcount=4
                  I'm confident that the thermostat is opening as the cooler is getting hot. I'm also hoping that the cooler I've got will be big enough for the job. I know Jamo is using a std ABY cooler on his stroker and is not having any issues, mine is a 3B which is smaller than the ABY which is where the problem lies, hopefully.
                  sigpic
                  1991 Audi S2 3B - 2.5 Stroker engine
                  1997 A6 2.5TDi quattro avant - C4
                  1976 RD250E / 350LC cafe racer

                  Comment

                  • terrybullwon
                    S2Forum Zealot
                    • Mar 2006
                    • 8782
                    • Country: England

                    #10
                    I am sure cutting a towing eye off is a pretty epic fail.

                    Andy do you still have your auxiliary rad?
                    Last edited by terrybullwon; 18 March 2011, 17:48.
                    Chef

                    Comment

                    • AndyP
                      S2Forum Zealot
                      • Feb 2004
                      • 6049
                      • Country: England

                      #11
                      Yes I still have the aux rad, not keen on ditching that either as I still want to use the car as a daily driver for work, which will mean a fair amount of time sitting in traffic jams

                      The cooler will fit in the std location, it just needs a bit more tweaking to get it right.
                      sigpic
                      1991 Audi S2 3B - 2.5 Stroker engine
                      1997 A6 2.5TDi quattro avant - C4
                      1976 RD250E / 350LC cafe racer

                      Comment

                      • europeanme
                        S2Forum Possessed
                        • Oct 2005
                        • 3817
                        • Country: United Kingdom

                        #12
                        whats size cooler did you end up going for?..

                        earls or mocal??....

                        Comment

                        • AndyP
                          S2Forum Zealot
                          • Feb 2004
                          • 6049
                          • Country: England

                          #13
                          It's a Serck, 13row 235mm wide by 50mm deep.
                          sigpic
                          1991 Audi S2 3B - 2.5 Stroker engine
                          1997 A6 2.5TDi quattro avant - C4
                          1976 RD250E / 350LC cafe racer

                          Comment

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

                            #14
                            Could always wire a switch to the fan for traffic jams. Thats what i have planned when i get fed up with using the aircon button. Lol

                            To be honest Ive ditched the aux rad for a couple of years and tackling london traffic has been ok even through summer and even without tripping the fan its ok, i use it more to try and ease heatsoak.
                            Volcano ABY coupe

                            Ant

                            Comment

                            • europeanme
                              S2Forum Possessed
                              • Oct 2005
                              • 3817
                              • Country: United Kingdom

                              #15
                              like this one?...http://www.interex.co.uk/motorsport/...ct.php?pid=261

                              Comment

                              Working...