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what radiator should i get for the mk1

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  • what radiator should i get for the mk1

    what radiator should i get for the mk1 to keep it cooler as i have a new engine for it?

    is the diesel radiator the better one?
    VW: it aint just a car, its a way of life
    There are few things more satisfying in life than finding a solution to a problem and implementing it
    My Blog: tinkererstales.blogspot.com.au

  • #2
    A Mk1 GTI rad is fine for pretty much anything - especially with little, to no, accessories on the motor

    1976 Project Carbon Mk1 - Sold! | 2015 Lotus Exige Cup | F80 M3 Family Wheels

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    • #3
      Originally posted by Valver. View Post
      A Mk1 GTI rad is fine for pretty much anything - especially with little, to no, accessories on the motor
      are they easy to find?

      ohh this motor has accessories! 1.6 bored to 1.8 with some headwork and my side draught weber
      VW: it aint just a car, its a way of life
      There are few things more satisfying in life than finding a solution to a problem and implementing it
      My Blog: tinkererstales.blogspot.com.au

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      • #4
        Originally posted by GoLfMan View Post
        are they easy to find?

        ohh this motor has accessories! 1.6 bored to 1.8 with some headwork and my side draught weber

        I mean power steering and a/c, which put a further load on the motor

        You'd only run into issues if you have big compression with that setup. The top-fill radiator will run fine

        1976 Project Carbon Mk1 - Sold! | 2015 Lotus Exige Cup | F80 M3 Family Wheels

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        • #5
          Is a mk2 gti rad much bigger or better? curious to this myself.

          Something you could do is get a twin fan shroud, not sure how much difference they make though.
          76 MkI 3 door - daily drive/project - 1.8 5speed
          76 MkI 3 door swallowtail - 16v track car
          76 MkI 3 door "long term" project

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          • #6
            Originally posted by Valver. View Post
            I mean power steering and a/c, which put a further load on the motor

            You'd only run into issues if you have big compression with that setup. The top-fill radiator will run fine
            ahh i see!
            yeh i dont think there is big comp, it may be a bit higher however

            i think a good flush should see the radiator working fine again hopefully
            VW: it aint just a car, its a way of life
            There are few things more satisfying in life than finding a solution to a problem and implementing it
            My Blog: tinkererstales.blogspot.com.au

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            • #7
              Originally posted by static1800 View Post
              Is a mk2 gti rad much bigger or better? curious to this myself.

              Something you could do is get a twin fan shroud, not sure how much difference they make though.
              The Mk2 8v one is a fair bit bigger than the Mk1 top fill.

              I have a twin fan setup on my Mk1 GTI rad, which seems to work well. I couldn't really say if it's any better as I haven't run it with a single one, though.

              1976 Project Carbon Mk1 - Sold! | 2015 Lotus Exige Cup | F80 M3 Family Wheels

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              • #8
                I used an Audi 80 1993 Model Radiator and twin thermofans for my Mk1. Its almost perfect sizewize and contains heaps more coolant than a Mk1 rad.

                I rarely saw any Mk1s overheat due to small radiators, even the standard ones work fine if the rest of the cooling system is up to scratch.
                sigpic Camden GTI Performance. VW / AUDI Specialists
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                • #9
                  I squeezed a twin fan Cordoba radiator into my MK I, but then I also put the cordoba motor in there too!

                  Pete
                  79 MK1 Golf Wreck to Race / 79 MK1 Golf The Red Thread / 76 MK1 Golf Kamei Race Car
                  7? MK1 Caddy
                  79 B1 Passat Dasher Project
                  12 Amarok

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                  • #10
                    the top fill radiator is the same size as the gti/diesel ratiator too, its just that the gti/diesel radiators have separate expansion tank to make it a proper air free system and so is a little more effective...

                    and so yes, the diesel and gti radiators are the same.
                    '07 Touareg V6 TDI with air suspension
                    '98 Mk3 Cabriolet 2.0 8V
                    '99 A4 Quattro 1.8T

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                    • #11
                      I sourced a heap of Mk3 TDI radiators years ago. brand new. They worked a treat as when competing the temperatures would soar while actually thrashing my Golfs. Normal and hard street driving proved no problems with the standard radiators, at least down here in Tas.
                      I bought up all the stock of the radiators from the place that had them and have used them all up bar one. I am keeping that until I know Gunters fate.....
                      The later African Golfs had bigger radiators in them. 81 on.
                      Par 6 Golf GTI. Coilovers, BBS CH Wheels, APR'd
                      Caddy van 05/07 (colourcoded) (BRIGHT! orange!) coilovers, Konis 18in. wheels, Oettinger tuned

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                      • #12
                        As mentioned, a Mk1 GTI rad is more than enough! Does the job fine on my 20vt Mk1

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