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    David,<br>
    <br>
    That's what my BN2 and BJ8 run at highway speed--except in Death
    Valley at 115deg--both with stock but re-cored radiators.<br>
    <br>
    It's sitting still at idle that hurts; what does your car run after
    a couple minutes sitting at idle? As a side note, the only thing
    that really helped for the BJ8 was the 7-bladed flex fan and shroud
    kit you and your dad used to sell. But the fan was just too dang
    loud at idle--it blew dust out from under the car sitting still--but
    I still have the shroud mounted.<br>
    <br>
    Bob<br>
    <br>
    <div class="moz-cite-prefix">On 7/17/2023 11:18 AM, David Nock BCS
      via Healeys wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:8249FBE00B9D4CCC872FB3830C8F92A6@DavidNockHP">
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          <div>For an update on radiators and cooling</div>
          <div> </div>
          <div>This Sunday the GGAHC had their Ice Cream Social in
            Danville California, Afterwards I had wine event and a
            friends winery in Lodi. </div>
          <div> </div>
          <div>If you havent heard we are in the middle of a major heat
            wave here in Central California. The day time temp at noon
            on Sunday way 105 degrees and warmed up to a mild 109 by 4
            pm. </div>
          <div> </div>
          <div>Of course since I started out at our Club event I took
            the Healey. With a alluminium radiator.  </div>
          <div> </div>
          <div>The engine temperature ran a steady 185 to  190 degrees
            at 70 mph </div>
          <div> </div>
          <div>This is how  I like to test something. A real life
            personal test on how a part works.</div>
          <div> </div>
          <div> </div>
          <div> </div>
          <div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR:
            #000000">David Nock<br>
            British Car Specialists<br>
            209-948-8767<br>
            <a href="http://www.britishcarspecialists.com"
              moz-do-not-send="true">www.britishcarspecialists.com</a></div>
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              <div style="BACKGROUND: #f5f5f5">
                <div style="font-color: black"><b>From:</b> <a
                    title="healeydoc@sbcglobal.net"
                    moz-do-not-send="true">David Nock BCS</a> </div>
                <div><b>Sent:</b> Thursday, July 13, 2023 9:08 AM</div>
                <div><b>To:</b> <a title="drberkowitz@hotmail.com"
                    moz-do-not-send="true">Leonard Berkowitz</a> ; <a
                    title="healeys@autox.team.net"
                    moz-do-not-send="true">healeys@autox.team.net</a> </div>
                <div><b>Subject:</b> Re: [Healeys] Heater query</div>
              </div>
            </div>
            <div> </div>
          </div>
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              <div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century';
                COLOR: #000000">
                <div>We have been dealing with the British  Car industry
                  for only about 70 years, from an independent shop in
                  the 50s and 60s, then a BL dealer in the 70s and 80s.
                  Then back to an independent repair shop dealing
                  strictly British Cars the entire time.  </div>
                <div> </div>
                <div>WE have dealt with running hot and overheating the
                  entire time. Up until about 10 years ago we had been
                  installing a special high efficency radiator core in
                  all our radiators. We would not paint the cores,
                  change the necks to a short neck allowing a higher
                  pressure cap, correct thermostats, installed air ducts
                  correctly. All of these things helped. </div>
                <div> </div>
                <div>I am personnally hesitant to make changes until I
                  have installed in my own personal car and actually
                  seen a difference. On my BN4 I have a highly upgraded
                  motor, a 3000 motor that is bored .060 over,
                  perfomance MSD ignition and much more. I was
                  continually having hot running problems here in the
                  central valley of California with the summer temps
                  always in the high 90s and upto 110. </div>
                <div> </div>
                <div>I removed one of my upgraded radiators and
                  installed an alluminium radiator, with 2 rows of  1”
                  tubes. The original Healey radiator is a 2 row core
                  with 1/2 tubes, the upgraded core we have been
                  installing is a 3 row core with 3/8 tubes with a new
                  style fin. This esentially gave us more tube to fin
                  area as well as more fin to air surface.</div>
                <div> </div>
                <div>Now with the newer alloy radiator we gained more
                  tube size, more tube to fin and more fin to air
                  contact, This making better cooling.</div>
                <div> </div>
                <div>Now for the test, I installed the alloy radiator in
                  my car, and immediately the running temperature
                  dropped by about 10 to 20 degrees depending on the
                  day. However I still had an issue with slow traffic
                  speeds. It was much better  but I wanted to make it
                  better. So I installed a pusher fan on a thermostat
                  set at 180 degrees, and now all the heating issues are
                  gone.</div>
                <div> </div>
                <div>So maybe if you compare equal sized radiators with
                  equal fins and tubes, the copper brass radiators are
                  better. But my own personal test in my car proved to
                  me that the alloy radiator was the cure.</div>
                <div> </div>
                <div> </div>
                <div> </div>
                <div>David Nock<br>
                  British Car Specialists<br>
                  209-948-8767<br>
                  <a class="moz-txt-link-abbreviated" href="http://www.britishcarspecialists.com">www.britishcarspecialists.com</a></div>
                <div style="FONT-SIZE: small; TEXT-DECORATION: none;
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                    <div> </div>
                    <div style="BACKGROUND: #f5f5f5">
                      <div style="font-color: black"><b>From:</b> <a
                          title="healeys@autox.team.net"
                          moz-do-not-send="true">Leonard Berkowitz via
                          Healeys</a> </div>
                      <div><b>Sent:</b> Thursday, July 13, 2023 6:43 AM</div>
                      <div><b>To:</b> <a title="healeys@autox.team.net"
                          moz-do-not-send="true">healeys@autox.team.net</a>
                      </div>
                      <div><b>Subject:</b> Re: [Healeys] Heater query</div>
                    </div>
                  </div>
                  <div> </div>
                </div>
                <div style="FONT-SIZE: small; TEXT-DECORATION: none;
                  FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal;
                  COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline">
                  <div class="elementToProof" style="FONT-SIZE: 12pt;
                    FONT-FAMILY: calibri, helvetica, sans-serif; COLOR:
                    rgb(0,0,0)">I do not have any experience with
                    aluminum radiators but I have tried oil coolers,
                    "Texas fans", and electric fans. I finally had my
                    original recored with a core that has extra rows.
                    The upper tank is original but the lower is thicker,
                    which made installation a little challenging. The
                    radiator has been in for at least 15-20 years.  I
                    have driven under almost every condition- very hot
                    ambient temps, high speed (80-90MPH) traffic etc.
                    and the engine temps stay where they should be. 
                    Strongly recommend this option, especially since it
                    almost impossible to distinguish my radiator from
                    the stock original and it has worked to perfection. 
                  </div>
                  <div class="elementToProof" style="FONT-SIZE: 12pt;
                    FONT-FAMILY: calibri, helvetica, sans-serif; COLOR:
                    rgb(0,0,0)">Len B</div>
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                    inline-block">
                  <div id="divRplyFwdMsg" dir="ltr"><font
                      style="FONT-SIZE: 11pt; COLOR: rgb(0,0,0)"
                      face="Calibri, sans-serif"><b>From:</b> Healeys
                      <a class="moz-txt-link-rfc2396E" href="mailto:healeys-bounces@autox.team.net"><healeys-bounces@autox.team.net></a> on behalf
                      of warthodson--- via Healeys
                      <a class="moz-txt-link-rfc2396E" href="mailto:healeys@autox.team.net"><healeys@autox.team.net></a><br>
                      <b>Sent:</b> Tuesday, July 11, 2023 9:49 AM<br>
                      <b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>
                      <a class="moz-txt-link-rfc2396E" href="mailto:healeys@autox.team.net"><healeys@autox.team.net></a>; BJ8Healeys
                      <a class="moz-txt-link-rfc2396E" href="mailto:sbyers@ec.rr.com"><sbyers@ec.rr.com></a><br>
                      <b>Subject:</b> Re: [Healeys] Heater query</font>
                    <div> </div>
                  </div>
                  <div>
                    <div class="x_ydp3ac0765cyahoo-style-wrap"
                      style="FONT-SIZE: 16px; FONT-FAMILY: comic sans
                      ms,sans-serif">
                      <div dir="ltr" data-setdir="false">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" data-setdir="false">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" data-setdir="false">Gary H</div>
                      <div> </div>
                    </div>
                    <div id="x_ydp70f1316yahoo_quoted_9797011705"
                      class="x_ydp70f1316yahoo_quoted">
                      <div style="FONT-SIZE: 13px; FONT-FAMILY:
                        "Helvetica Neue", helvetica, arial,
                        sans-serif; COLOR: rgb(38,40,42)">
                        <div>On Monday, July 10, 2023 at 09:02:21 PM
                          CDT, BJ8Healeys via Healeys
                          <a class="moz-txt-link-rfc2396E" href="mailto:healeys@autox.team.net"><healeys@autox.team.net></a> wrote: </div>
                        <div> </div>
                        <div> </div>
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                                class="x_ydp70f1316yiv6075989256Section1">
                                <p
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><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
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><span
                                    style="COLOR: rgb(31,73,125)"></span> </p>
                                <p
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><span
                                    style="COLOR: rgb(31,73,125)">Steve
                                    Byers</span></p>
                                <p
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><span
                                    style="COLOR: rgb(31,73,125)">HBJ8L/36666</span></p>
                                <p
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><span
                                    style="COLOR: rgb(31,73,125)">BJ8
                                    Registry</span></p>
                                <p
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><span
                                    style="COLOR: rgb(31,73,125)">AHCA
                                    Delegate at Large</span></p>
                                <p
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><span
                                    style="COLOR: rgb(31,73,125)">Havelock,
                                    NC  USA</span></p>
                                <p
                                  class="x_ydp70f1316yiv6075989256MsoNormal"><a
                                    shape="rect"
                                    name="x__MailEndCompose"
                                    moz-do-not-send="true"><span
                                      style="COLOR: rgb(31,73,125)"></span></a> </p>
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class="x_ydp70f1316yiv6075989256yqt6620226481">
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