<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></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">
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<blockquote type="cite">
<div dir="ltr">Gary,
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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">
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<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>
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<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 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">
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<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>
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<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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<div>
<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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