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In August of the hot summer of 2019 (aren=E2=80=99t 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.
=20
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.=20
=20
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.=20
=20
I don=E2=80=99t 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=E2=80=99d 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=E2=80=99s 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.)
=20
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 =E2=80=93 I think =
it was published in both the TEAE and CAT newletters.
=20
=20
From: Tigers <tigers-bounces@autox.team.net> On Behalf Of Dr. T. Y. =
McDowell
Sent: Saturday, July 2, 2022 5:06 AM
To: Tiger's List <tigers@autox.team.net>
Subject: [Tigers] Evans Waterless Cooling
=20
Is anyone out there in Tigerland using Evans Waterless Coolant?=20
It has a boiling point of 375 (F). I'd like to hear from anyone who's =
using it as I'm considering it.=20
=20
Thanks in advance,=20
=20
Tym McDowell=20
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link=3D"#0563C1" vlink=3D"#954F72" style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal>In August of the hot summer of =
2019 (aren=E2=80=99t 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.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>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. =
<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal>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. <o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>I =
don=E2=80=99t 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=E2=80=99d 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=E2=80=99s 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.)<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal> Buck Trippel<o:p></o:p></p><p class=3DMsoNormal>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 =E2=80=93 I think =
it was published in both the TEAE and CAT newletters.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Tigers =
<tigers-bounces@autox.team.net> <b>On Behalf Of </b>Dr. T. Y. =
McDowell<br><b>Sent:</b> Saturday, July 2, 2022 5:06 AM<br><b>To:</b> =
Tiger's List <tigers@autox.team.net><br><b>Subject:</b> [Tigers] =
Evans Waterless Cooling<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#33333=
3'>Is anyone out there in Tigerland using Evans Waterless Coolant? =
<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#33333=
3'>It has a boiling point of 375 (F). I'd like to hear from anyone =
who's using it as I'm considering it. =
<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#33333=
3'><o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#33333=
3'>Thanks in advance, <o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#33333=
3'><o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#33333=
3'>Tym McDowell <o:p></o:p></span></p></div></div></body></html>
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