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    I have a BJ8 with:<br>
    <br>
    - OEM radiator with 4-row 'Excel' core<br>
    - Texas Cooler fan<br>
    - recently rebuilt engine with approx. 6K miles--hot-tanked,
    properly tuned, etc.--and Robertshaw sleeved 180degF thermostat<br>
    - Jet-Hot coated exhaust manifold<br>
    <br>
    ... and a BN2/100M with:<br>
    <br>
    - OEM radiator with 4-row 'Excel' core<br>
    - OEM art deco fan<br>
    - rebuilt engine with a couple thousand miles at most--still working
    on 'perfect' mixture--and garden-variety Stant 180degF thermostat<br>
    - manifold with high-temp 'authentic color' paint only<br>
    <br>
    Both behave identically, i.e. will run 'cool'--160degF or less--on
    cool days, 180degF on 'typical' days (72degF), and both will get hot
    (over 200) sitting in traffic on typical or hotter days or pulling
    up a long grade.<br>
    <br>
    FWIW<br>
    <br>
    Bob<br>
    <br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 1/14/2020 9:58 AM, Michael Salter
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAB3i7L+mjj80_AvnkPT5iOaXLbYEE2YnysyvszSC3fT7uBOMsw@mail.gmail.com">
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      <div dir="auto"><span
          style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">"Why
          do other Healey’s with a stock radiator not have this problem,
          who knows?"</span>
        <div dir="auto"><span
            style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px"><br>
          </span></div>
        <div dir="auto"><span
            style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">Bob
            that has perplexed me for decades but certainly seems to be
            reality.</span></div>
        <div dir="auto"><span
            style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">Good
            luck with your modifications  ... I  have always found that
            additional tubes in the radiator make a huge difference. </span></div>
        <div dir="auto"><span
            style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px"><br>
          </span></div>
        <div dir="auto"><span
            style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">M</span></div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Tue, Jan 14, 2020, 12:27 PM
          Robert Begani, <<a href="mailto:rfbegani@gmail.com"
            moz-do-not-send="true">rfbegani@gmail.com</a>> wrote:<br>
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          .8ex;border-left:1px #ccc solid;padding-left:1ex">
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              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">I
                  agree with you, however, this is south Florida where a
                  cool winter day is today, where the temperature is
                  currently 79 degrees and rising to a high of 83
                  degrees with a se wind at 7 mph.  Great for a day sail
                  on the Harbor which I will do in the next hour. 
                  However, it does make driving a hot car fun. There is
                  not enough cooling capacity in the stock radiator to
                  handle hot climates and have to stop and go because
                  the temperature does not go down only up.  So the next
                  step is to re-core the radiator.  The local radiator
                  guy knows the problem and for $500 will provide new
                  core using the old tanks which will give at least 50%
                  more cooling capacity.  This is a SKI purchase.  Spend
                  the Kids Inheritance.  Then I will think about
                  wrapping the exhaust manifolds and headers to stop
                  vapor lock.</span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">What
                  do you think about Push and Pull?  Take off the engine
                  fan?</span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">By
                  the way, I know the engine machine shop boiled out,
                  oil bathed, everything in the engine during his
                  machining of the engine to bring it up to
                  specifications.  He knows what to do.  The only
                  modification is the 20 over pistons.  </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Why
                  do other Healey’s with a stock radiator not have this
                  problem, who knows?</span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Bob
                </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
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                  1.0pt;padding:3.0pt 0in 0in 0in">
                  <p class="MsoNormal"><b>From:</b> Perry <<a
                      href="mailto:healeyguy@aol.com" target="_blank"
                      rel="noreferrer" moz-do-not-send="true">healeyguy@aol.com</a>>
                    <br>
                    <b>Sent:</b> Tuesday, January 14, 2020 11:47 AM<br>
                    <b>To:</b> Robert Begani <<a
                      href="mailto:rfbegani@gmail.com" target="_blank"
                      rel="noreferrer" moz-do-not-send="true">rfbegani@gmail.com</a>><br>
                    <b>Subject:</b> RE: [Healeys] Over heating and
                    adding additional core tubes to theexisting radiator</p>
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              <p class="MsoNormal"> </p>
              <p class="MsoNormal">Bob</p>
              <p class="MsoNormal">With the extras that you have added
                to facilitate the airflow the car should be running much
                cooler than 212, even with a stock radiator. There is
                something else amiss in the equation. </p>
              <p class="MsoNormal">Perry</p>
              <p class="MsoNormal"> </p>
              <p class="MsoNormal">Sent from <a
                  href="https://go.microsoft.com/fwlink/?LinkId=550986"
                  target="_blank" rel="noreferrer"
                  moz-do-not-send="true">Mail</a> for Windows 10</p>
              <p class="MsoNormal"> </p>
              <div style="border:none;border-top:solid #e1e1e1
                1.0pt;padding:3.0pt 0in 0in 0in">
                <p class="MsoNormal"><b>From: </b><a
                    href="mailto:rfbegani@gmail.com" target="_blank"
                    rel="noreferrer" moz-do-not-send="true">Robert
                    Begani</a><br>
                  <b>Sent: </b>Tuesday, January 14, 2020 11:23 AM<br>
                  <b>To: </b><a href="mailto:healeyguy@aol.com"
                    target="_blank" rel="noreferrer"
                    moz-do-not-send="true">'Perry'</a><br>
                  <b>Subject: </b>RE: [Healeys] Over heating and adding
                  additional core tubes to theexisting radiator</p>
              </div>
              <p class="MsoNormal"> </p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Hi
                  Perry:</span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">I
                  do not remember the CFM, however, it is the Hayden Fan
                  offered by Moss with the largest diameter to fit the
                  radiator.  As a pusher it really pushes air through
                  the engine compartment at low speeds and standing
                  still. I still have an original Texas 6 blade fan on
                  the engine.  As I was searching overheating problems,
                  one reference indicated that is not recommended as
                  they act against each other.</span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
              <p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Bob</span></p>
              <br>
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