[Healeys] Auxiliary electric fan

richard mayor boyracer466 at gmail.com
Thu Jul 22 15:51:42 MDT 2021

What is the down side of running a 165 degree thermostat?  Is your engine
not running at optimum efficiency?  I have been led to believe that an
engine's optimum running temperature is somewhere around 185 - 190 degrees.

On Wed, Jul 21, 2021 at 6:07 PM Alan Seigrist via Healeys <
healeys at autox.team.net> wrote:

> Kees -
> Living in hot and tropical climates like I have, I can confirm that using
> cooler thermostats helps a great deal to reduce heat spikes in traffic, as
> there is significantly less heat energy stored in the coolant at 165F vs
> 180F.  That combined with a well sorted system will be sufficient to give
> you a few more minutes at idle than if you were running a 180 or 190F
> thermostat on a very hot day.
> You are correct it technically will not prevent overheating, but it will
> postpone it long enough until you get driving again.
> Best,
> Alan
> On Wed, Jul 21, 2021 at 5:48 PM Kees Oudesluijs <coudesluijs at upcmail.nl>
> wrote:
>> A thermostat with a lower opening temperature does not prevent
>> overheating. It may buy you some time before the engine overheats but if
>> you are long enough in a traffic jam it will overheat eventually. A more
>> powerful fixed fan may alleviate the problem a bit but the only real
>> solution will be a properly installed electric fan.
>> I have done this from the sixties on all my cars that had a fixed fan.
>> However even in those days many of the more powerful cars were already
>> equipped with thermostatically controlled radiator fans.
>> An electric fan does not solve overheating because of other issues like a
>> dirty or blocked radiator, silted up engine, faulty cowling etc.
>> Kees Oudesluijs
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation  $12.75
> Archive: http://www.team.net/pipermail/healeys
> http://autox.team.net/archive
> Healeys at autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/boyracer466@gmail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20210722/466a2bca/attachment.htm>

More information about the Healeys mailing list