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Gary,
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.
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.
This website has a good overview: https://usradiator.com/cores
Harold
On Tue, Jul 11, 2023 at 9:12=E2=80=AFAM warthodson--- via Healeys <
healeys@autox.team.net> wrote:
> 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 lea=
ds
> to the aluminum option.
> 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=
?
> Gary H
>
> On Monday, July 10, 2023 at 09:02:21 PM CDT, BJ8Healeys via Healeys <
> healeys@autox.team.net> wrote:
>
>
> I live in the sunny South (90=C2=B0 F and 90% relative humidity today) an=
d I
> used to refer to my BJ8=E2=80=99s heater as the =E2=80=9Cauxiliary engine=
cooler=E2=80=9D; but I no
> longer have to use it that way since I had a modern core installed in th=
e
> radiator and added a 190=C2=B0 sleeved thermostat that I bought from Kees=
.
>
>
>
> Steve Byers
>
> HBJ8L/36666
>
> BJ8 Registry
>
> AHCA Delegate at Large
>
> Havelock, NC USA
>
>
>
>
> _______________________________________________
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>
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>
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>
>
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<div dir=3D"ltr">Gary,<div><br></div><div>I had the same options when resto=
ring my Mk1 BT7. I looked into aluminum radiators extensively to see what t=
he benefits might be. Contrary to popular belief it is not better heat tran=
sfer properties of the materials. The copper radiator fins on the original =
Healey radiators have much better thermal conductivity=C2=A0than aluminum. =
The advantage of the aluminum radiator is the manufacturing=C2=A0process an=
d 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=
=C2=A0radiator. The greater the fin area the better to expel=C2=A0heat.</di=
v><div><br></div><div>Having said that, there is a third=C2=A0option which =
is to replace the original core with a high efficiency core. This retains t=
he stock look of the engine bay and will be close in performance to the alu=
minum radiator. The high efficiency core option will be more expensive=C2=
=A0than a Wizard radiator and the difficulty is finding a radiator shop tha=
t can access the core can do the work.</div><div><br></div><div>This websit=
e has a good overview:=C2=A0<a href=3D"https://usradiator.com/cores";>https:=
//usradiator.com/cores</a></div><div><br></div><div>Harold</div><div><br></=
div><div><br></div><div><br></div><div><br></div></div><br><div class=3D"gm=
ail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Jul 11, 2023 at 9:=
12=E2=80=AFAM warthodson--- via Healeys <<a href=3D"mailto:healeys@autox=
.team.net">healeys@autox.team.net</a>> wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex"><div><div style=3D"font-family:"Comic=
Sans MS",sans-serif;font-size:16px"><div></div>
<div dir=3D"ltr">My 100 radiator is in need of some rehabilitation.=
It either needs to be boiled out, which would not replace some of the dama=
ged fins, or re-cored. I am leaning toward re-coring but that would be more=
expensive, which leads to the aluminum option.=C2=A0=C2=A0</div><div dir=
=3D"ltr">Besides price what are the pros vs. cons of these options? Does an=
yone know if re-cored 100 radiator is more efficient than an aluminum radia=
tor?</div><div dir=3D"ltr">Gary H</div><div><br></div>
=20
</div><div id=3D"m_-2269323291578053413ydp70f1316yahoo_quoted_97970=
11705">
<div style=3D"font-family:"Helvetica Neue",Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
=20
<div>
On Monday, July 10, 2023 at 09:02:21 PM CDT, BJ8Healeys=
via Healeys <<a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank=
">healeys@autox.team.net</a>> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id=3D"m_-2269323291578053413ydp70f1316yiv60759892=
56"><div>
<div>
<p><span style=3D"color:rgb(31,73,125)">I live in the sunny South (90</span=
><span style=3D"color:rgb(31,73,125)">=C2=B0</span><span style=3D"color:rgb=
(31,73,125)"> F and 90% relative
humidity today) and I used to refer to my BJ8=E2=80=99s heater as the =E2=
=80=9Cauxiliary engine
cooler=E2=80=9D; but I no longer have to use=C2=A0 it that way since I had =
a modern core
installed in the radiator and added a 190</span><span style=3D"color:rgb(31=
,73,125)">=C2=B0</span><span style=3D"color:rgb(31,73,125)"> sleeved thermo=
stat that I bought from Kees.</span></p>=20
<p><span style=3D"color:rgb(31,73,125)"> =C2=A0</span></p>=20
<p><span style=3D"color:rgb(31,73,125)">Steve Byers</span></p>=20
<p><span style=3D"color:rgb(31,73,125)">HBJ8L/36666</span></p>=20
<p><span style=3D"color:rgb(31,73,125)">BJ8 Registry</span></p>=20
<p><span style=3D"color:rgb(31,73,125)">AHCA Delegate at Large</span></p>=
=20
<p><span style=3D"color:rgb(31,73,125)">Havelock, NC=C2=A0 USA</span></p>=
=20
<p><a shape=3D"rect" name=3D"m_-2269323291578053413__MailEndCompose"><span =
style=3D"color:rgb(31,73,125)"> =C2=A0</span></a></p>=20
<div id=3D"m_-2269323291578053413ydp70f1316yiv6075989256yqt99156"><div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(181,196,223);padding:3pt 0in 0in">
<p><br></p></div></div></div></div></div></div></div>
</div>
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Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferre=
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</blockquote></div>
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