[Tigers] Evans Waterless Cooling

[Owain Lloyd]

That study (whilst very good) doesn’t mention anything about waterless
coolant though does it?  And that was the original question.

Il giorno dom 3 lug 2022 alle 15:39 LARRY PAULICK <lpaulick1 at verizon.net>
ha scritto:

> Dr. M, check the Tigers East Alpine East website or do a web search for
> Tiger Tom and tiger cooling study.  This is a good starting point for
> finding that study, others may have a direct source.
>
> On Jul 3, 2022, at 12:11 AM, Owain Lloyd <owain.lloyd at gmail.com> wrote:
>
> Buck, I live in the southern alps :)
> 40 Celsius and 2500m.  But was doing the same at normal temps and
> altitudes.
>
> Il giorno sab 2 lug 2022 alle 22:13 Buck Trippel <bucktrippel at verizon.net>
> ha scritto:
>
>> Owain, have you encountered either high outside air temps or high
>> altitudes when using Evans in your Tiger?
>>
>>
>>
>> Buck
>>
>>
>>
>> *From:* Owain Lloyd <owain.lloyd at gmail.com>
>> *Sent:* Saturday, July 2, 2022 8:42 AM
>> *To:* LARRY PAULICK <lpaulick1 at verizon.net>
>> *Cc:* Buck Trippel <bucktrippel at verizon.net>; tigers at autox.team.net
>> *Subject:* Re: [Tigers] Evans Waterless Cooling
>>
>>
>>
>> Assuming all those things are done, evans is still not quite up to the
>> job in my car.  Most of those cooling tricks are for slow moving car.  My
>> car ran too hot even at speed with evans and the less than perfect
>> radiator.  As I said, with a better radiator or with water instead it is
>> fine.
>>
>>
>>
>> My reason for preferring brass is that it can be easily soldered.  I
>> struggled on for a long time with my brass radiator but eventually it was
>> just too stress fatigued and needed frequent repair.  If I could get a new
>> brass one I would certainly prefer that.
>>
>>
>>
>> Il giorno sab 2 lug 2022 alle 17:36 LARRY PAULICK <lpaulick1 at verizon.net>
>> ha scritto:
>>
>> Another issue is aluminum versus brass radiators.  Aluminum radiators are
>> lighter but  brass transfers heat more efficiently.
>>
>>
>>
>> When I redid my tiger, I used a three row versus a stock two row brass
>> retaining the top, bottom, and sides so that the fit was not affected.
>>
>>
>>
>> Also if you're replacing or having overheating problems, a closed
>> impeller type water pump is much more efficient. Some aftermarket companies
>> sell them already set up this way, but you can buy just the impeller plate
>> from Summit for a very low price and install it yourself. Pumping
>> efficiency is greatly improved.
>>
>>
>>
>> TEAE did a study many years ago on all aspects of cooling. This excellent
>> engineering study is still applicable today and well worth reading,
>> dispelling a lot of myths.
>>
>>
>>
>> Another design problem with the tiger is that there is no lower portion
>> of the fan shroud. As a result, hot air is removed from the radiator then
>> goes down to the ground and circles back through the front of the radiator,
>> at rest.
>>
>>
>>
>> I know this for a fact since I did smoke test and watched the air
>> recirculating.
>>
>>
>>
>> I fabricated a lower fan shroud from sheet metal, and made a low cost
>> plastic air dam that comes down about 4 inches, to help the flow of air
>> through the radiator and continue towards the rear of the car while in
>> motion.
>>
>>
>>
>> Bottom line it all works and I don't overheat.
>>
>>
>>
>> I have to laugh at the commentos who keeps saying that the V8 takes up so
>> much space that that's why they overheat. Just look at today's cars and how
>> they fill the engine bay and it becomes apparent this is another myth.
>>
>>
>>
>> On Jul 2, 2022, at 10:29 AM, Owain Lloyd <owain.lloyd at gmail.com> wrote:
>>
>>
>>
>> Yep.  I run in most cars with no problems but in the tiger with the 500hp
>> motor I needed every bit of efficiency possible so had to switch off even
>> back to water and antifreeze.  It worked sort of ok with the dale radiator
>> but then I switched to another brand radiator and it just couldn’t keep the
>> temps down.   Pretty sure it would be doable with an efficient and lower
>> power motor if all the other cooling problems were taken care of.
>>
>>
>>
>> Il giorno sab 2 lug 2022 alle 16:05 Buck Trippel via Tigers <
>> tigers at autox.team.net> ha scritto:
>>
>> In August of the hot summer of 2019 (aren’t they all hot now?) I put
>> Evans in a Tiger which has an excellent two row aluminum radiator in front
>> of a rather stock 289. My wife and I put the Tiger through an almost
>> 5-thousand mile road test by driving from Los Angeles to La Crosse via
>> I80/I90 to attend the TEAE United and then Route 66 on the way home.
>> Temperatures were frequently at 100 degrees. So it got quite a test.
>>
>>
>>
>> The Evans did not boil but with hot outside air temperatures its inferior
>> specific heat (to water) could not remove adequately remove the engine
>> heat.
>>
>>
>>
>> The carb got so hot the fuel percolated (boiled) inside the bowls and the
>> engine stalled lean. This weakness was exacerbated at altitudes above
>> 4-thousand feet. In Pueblo, with OATs near 100 I ended up on the same AAA
>> tow truck twice on the same day. I then gave up and reluctantly drained
>> maybe half of the the costly coolant out, replacing it with plain water so
>> I could get home. However the percolation reoccurred crossing the Mojave in
>> the 115 degree August temps. At home I replaced the Evans with water,
>> adding Water Wetter for corrosion protection.
>>
>>
>>
>> I don’t have the numbers off the top of my head but the specific heat (or
>> ability to transfer heat) of water is 1.00 while Evans is something like
>> .65 or only 2/3 that of water. For me, Evans just did not do the job. From
>> my experience I’d say one would have to be exceptionally brave to use it,
>> especially with a stock radiator system or with a more powerful engine
>> which will place even more demand on the Tiger’s weak cooling system. (BTW
>> in the Tiger we drove on that trip, we had removed the stock block under
>> the carb that hot radiator fluid passes through which probably have made
>> even more of a problem.)
>>
>>
>>
>> Buck Trippel
>>
>> Ps I wrote up some of this years ago and I believe it contained a more
>> detailed account of Evans heating issues on the trip – I think it was
>> published in both the TEAE and CAT newletters.
>>
>>
>>
>>
>>
>> *From:* Tigers <tigers-bounces at autox.team.net> *On Behalf Of *Dr. T. Y.
>> McDowell
>> *Sent:* Saturday, July 2, 2022 5:06 AM
>> *To:* Tiger's List <tigers at autox.team.net>
>> *Subject:* [Tigers] Evans Waterless Cooling
>>
>>
>>
>> Is anyone out there in Tigerland using Evans Waterless Coolant?
>>
>> It has a boiling point of 375 (F).  I'd like to hear from anyone who's
>> using it as I'm considering it.
>>
>>
>>
>> Thanks in advance,
>>
>>
>>
>> Tym McDowell
>>
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>
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