[Healeys] Heater query

[Kees Oudesluijs]

You would need a thermostatically  controlled electric fan in modern 
traffic anyway. The original fan is fairly useless nowadays.
Kees Oudesluijs

Op 12-7-2023 om 00:42 schreef Harold Manifold:
> Bob,
>
> 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.
>
> Harold
>
> On Tue, Jul 11, 2023 at 2:19 PM Bob Haskell <rchaskell at earthlink.net> 
> wrote:
>
>     As the cores become denser, I wonder if the stock fan is able to
>     pull sufficient air through the radiator.
>
>     Bob Haskell
>     Austin-Healey 3000 roadster registrar
>
>     On 7/11/23 12:40, Harold Manifold wrote:
>>     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 AM warthodson--- via Healeys
>>     <healeys at 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 leads 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 at autox.team.net> wrote:
>>
>>
>>         I live in the sunny South (90°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°sleeved thermostat that I bought from Kees.
>>
>>         Steve Byers
>>
>>         HBJ8L/36666
>>
>>         BJ8 Registry
>>
>>         AHCA Delegate at Large
>>
>>         Havelock, NC  USA
>>
>>
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