<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><body>
Agree. Especially without a shroud <br><br><br><div class="yahoo-signature"><a href="https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661" target="_blank" rel="noreferrer noopener">Sent from the all new AOL app for iOS</a><br></div><br><p class="yahoo-quoted-begin" style="font-size: 15px; color: #715FFA; padding-top: 15px; margin-top: 0">On Wednesday, July 12, 2023, 7:39 AM, Kees Oudesluijs via Healeys <healeys@autox.team.net> wrote:</p><blockquote class="iosymail"><div id="yiv0440412576"><div>
    <p>You would need a thermostatically  controlled electric fan in
      modern traffic anyway. The original fan is fairly useless
      nowadays.<br clear="none">
      Kees Oudesluijs<br clear="none">
    </p>
    <div id="yiv0440412576yqtfd96586" class="yiv0440412576yqt6452103304"><div class="yiv0440412576moz-cite-prefix">Op 12-7-2023 om 00:42 schreef Harold
      Manifold:<br clear="none">
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    <blockquote type="cite">
      </blockquote></div></div><div id="yiv0440412576yqtfd36538" class="yiv0440412576yqt6452103304"></div><div><div id="yiv0440412576yqtfd15143" class="yiv0440412576yqt6452103304"><div dir="ltr">Bob,
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        <div>As long as the side baffles are fitted properly the fan
          will not have any issues pulling air through the rad. The fan
          does little for air flow at anything above 15 mph.</div>
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        <div>Harold</div>
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        <div dir="ltr" class="yiv0440412576gmail_attr">On Tue, Jul 11, 2023 at
          2:19 PM Bob Haskell <<a shape="rect" ymailto="mailto:rchaskell@earthlink.net" href="mailto:rchaskell@earthlink.net" class="yiv0440412576moz-txt-link-freetext" target="_blank" rel="noreferrer noopener">rchaskell@earthlink.net</a>>
          wrote:<br clear="none">
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            <p>As the cores become denser, I wonder if the stock fan is
              able to pull sufficient air through the radiator.<br clear="none">
            </p>
            <pre>Bob Haskell
Austin-Healey 3000 roadster registrar</pre>
            <div>On 7/11/23 12:40, Harold Manifold wrote:<br clear="none">
            </div>
            <blockquote type="cite">
              <div dir="ltr">Gary,
                <div><br clear="none">
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                <div>I had the same options when restoring my Mk1 BT7. I
                  looked into aluminum radiators extensively to see what
                  the benefits might be. Contrary to popular belief it
                  is not better heat transfer properties of the
                  materials. The copper radiator fins on the original
                  Healey radiators have much better thermal
                  conductivity than aluminum. The advantage of the
                  aluminum radiator is the manufacturing process and the
                  formability of modern aluminum. The result is more
                  tube and fin area. I estimated a Wizard radiator has
                  about 25% more fin area than the stock radiator. The
                  greater the fin area the better to expel heat.</div>
                <div><br clear="none">
                </div>
                <div>Having said that, there is a third option which is
                  to replace the original core with a high efficiency
                  core. This retains the stock look of the engine bay
                  and will be close in performance to the aluminum
                  radiator. The high efficiency core option will be more
                  expensive than a Wizard radiator and the difficulty is
                  finding a radiator shop that can access the core can
                  do the work.</div>
                <div><br clear="none">
                </div>
                <div>This website has a good overview: <a shape="rect" href="https://usradiator.com/cores" class="yiv0440412576moz-txt-link-freetext" target="_blank" rel="noreferrer noopener">https://usradiator.com/cores</a></div>
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                <div>Harold</div>
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              <div class="yiv0440412576gmail_quote">
                <div dir="ltr" class="yiv0440412576gmail_attr">On Tue, Jul 11, 2023
                  at 9:12 AM warthodson--- via Healeys <<a shape="rect" ymailto="mailto:healeys@autox.team.net" href="mailto:healeys@autox.team.net" class="yiv0440412576moz-txt-link-freetext" target="_blank" rel="noreferrer noopener">healeys@autox.team.net</a>>
                  wrote:<br clear="none">
                </div>
                <blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;" class="yiv0440412576gmail_quote">
                  <div>
                    <div>
                      <div dir="ltr">My 100 radiator is in need of some
                        rehabilitation. It either needs to be boiled
                        out, which would not replace some of the damaged
                        fins, or re-cored. I am leaning toward re-coring
                        but that would be more expensive, which leads to
                        the aluminum option.  </div>
                      <div dir="ltr">Besides price what are the pros vs.
                        cons of these options? Does anyone know if
                        re-cored 100 radiator is more efficient than an
                        aluminum radiator?</div>
                      <div dir="ltr">Gary H</div>
                      <div><br clear="none">
                      </div>
                    </div>
                    <div id="yiv0440412576m_1223842865389656808m_-2269323291578053413ydp70f1316yahoo_quoted_9797011705">
                      <div>
                        <div> On Monday, July 10, 2023 at 09:02:21 PM
                          CDT, BJ8Healeys via Healeys <<a shape="rect" ymailto="mailto:healeys@autox.team.net" href="mailto:healeys@autox.team.net" class="yiv0440412576moz-txt-link-freetext" target="_blank" rel="noreferrer noopener">healeys@autox.team.net</a>>
                          wrote: </div>
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                                <p><span style="color:rgb(31,73,125);">I
                                    live in the sunny South (90</span><span style="color:rgb(31,73,125);">°</span><span style="color:rgb(31,73,125);"> F and
                                    90% relative humidity today) and I
                                    used to refer to my BJ8’s heater as
                                    the “auxiliary engine cooler”; but I
                                    no longer have to use  it that way
                                    since I had a modern core installed
                                    in the radiator and added a 190</span><span style="color:rgb(31,73,125);">°</span><span style="color:rgb(31,73,125);">
                                    sleeved thermostat that I bought
                                    from Kees.</span></p>
                                <p><span style="color:rgb(31,73,125);">  </span></p>
                                <p><span style="color:rgb(31,73,125);">Steve
                                    Byers</span></p>
                                <p><span style="color:rgb(31,73,125);">HBJ8L/36666</span></p>
                                <p><span style="color:rgb(31,73,125);">BJ8
                                    Registry</span></p>
                                <p><span style="color:rgb(31,73,125);">AHCA
                                    Delegate at Large</span></p>
                                <p><span style="color:rgb(31,73,125);">Havelock,
                                    NC  USA</span></p>
                                <p><a shape="rect" name="m_1223842865389656808_m_-2269323291578053413__MailEndCompose" target="_blank" rel="noreferrer noopener"><span style="color:rgb(31,73,125);">  </span></a></p>
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                          </div>
                        </div>
                      </div>
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                  </div>
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              <pre>_______________________________________________
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</pre>
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      </div><pre class="yiv0440412576moz-quote-pre"><div id="yiv0440412576yqtfd11567" class="yiv0440412576yqt6452103304">_______________________________________________
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</pre>
    
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