Subject: Re: [Fot] To thermostat or not to thermostat...

From: Philip Gott via Fot <[email-masked]>
Date: Mon, 13 Jun 2022 08:03:44 -0400

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=EF=BB=BF
=EF=BB=BF
=EF=BB=BF
=EF=BB=BFSpeaking of restriction: the originator of the thread mentioned tha=
t he recently installed a new radiator.=20
I once installed a custom radiator in another old car. The new radiator was e=
xtra thick with many rows of fins and tubes, replacing an old =E2=80=9Choney=
comb=E2=80=9D style radiator. It turns out that this extra thick ( about 3 i=
nches) core was very restrictive on air flow compared to the original honeyc=
omb. The car overheated on the highway, something it never did before. As wi=
th the TR, the radiator fan was not shrouded.=20
So, I wonder if the new radiator is thick enough to reduce air flow compared=
 to the original? That could cause operating temperature to rise.
Phil Gott

Sent from my iPhone

> On Jun 12, 2022, at 10:34 PM, Mike Mehl via Fot <[email-masked]> wrote=
:
> =EF=BB=BFAgree on the restriction. You could pull the guts out of the ther=
mostat
>=20
> Sent from Yahoo Mail on Android
>=20
> On Sat, Jun 11, 2022 at 2:32 PM, ralph hansen via Fot
> <[email-masked]> wrote:
> _______________________________________________
> [email-masked]
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr">=EF=BB=BF<meta http-equiv=3D=
"content-type" content=3D"text/html; charset=3Dutf-8"><div dir=3D"ltr">=EF=BB=
=BF<meta http-equiv=3D"content-type" content=3D"text/html; charset=3Dutf-8">=
<div dir=3D"ltr">=EF=BB=BF<meta http-equiv=3D"content-type" content=3D"text/=
html; charset=3Dutf-8"><div dir=3D"ltr">=EF=BB=BF<meta http-equiv=3D"content=
-type" content=3D"text/html; charset=3Dutf-8">Speaking of restriction: the o=
riginator of the thread mentioned that he recently installed a new radiator.=
&nbsp;<div>I once installed a custom radiator in another old car. The new ra=
diator was extra thick with many rows of fins and tubes, replacing an old =E2=
=80=9Choneycomb=E2=80=9D style radiator. It turns out that this extra thick (=
 about 3 inches) core was very restrictive on air flow compared to the origi=
nal honeycomb. The car overheated on the highway, something it never did bef=
ore. As with the TR, the radiator fan was not shrouded.&nbsp;</div><div>So, I=
 wonder if the new radiator is thick enough to reduce air flow compared to t=
he original? That could cause operating temperature to rise.</div><div>Phil G=
ott<br><br><div dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br><b=
lockquote type=3D"cite">On Jun 12, 2022, at 10:34 PM, Mike Mehl via Fot &lt;=
[email-masked]&gt; wrote:<br><br></blockquote></div><blockquote type=3D"=
cite"><div dir=3D"ltr">=EF=BB=BFAgree on the restriction. You could pull the=
 guts out of the thermostat<br><br><div id=3D"ymail_android_signature"><a id=
=3D"ymail_android_signature_link" href=3D"https://go.onelink.me/107872968?pi=
d=3DInProduct&amp;c=3DGlobal_Internal_YGrowth_AndroidEmailSig__AndroidUsers&=
amp;af_wl=3Dym&amp;af_sub1=3DInternal&amp;af_sub2=3DGlobal_YGrowth&amp;af_su=
b3=3DEmailSignature">Sent from Yahoo Mail on Android</a></div> <br> <blockqu=
ote style=3D"margin: 0 0 20px 0;"> <div style=3D"font-family:Roboto, sans-se=
rif; color:#6D00F6;"> <div>On Sat, Jun 11, 2022 at 2:32 PM, ralph hansen via=
 Fot</div><div>&lt;[email-masked]&gt; wrote:</div> </div> <div style=3D"=
padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"=
> _______________________________________________<br clear=3D"none"><a shape=
=3D"rect" ymailto=3D"mailto:[email-masked]" href=3D"mailto:[email-masked]=
m.net">[email-masked]</a><br clear=3D"none"><br clear=3D"none"><a shape=3D=
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acing.com</a><br clear=3D"none"><br clear=3D"none">Donate: <a shape=3D"rect"=
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_______________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot

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From: Rich Hahn via Fot <[email-masked]>
Date: Mon, 13 Jun 2022 12:26:37 +0000 (UTC)

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 I've been reading this thread and what worked for me in my street TR3A alo=
ng with a high capacity water pump and electric fan was the old hot rod tri=
ck of replacing the thermostat with a "water restrictor disc'=C2=A0 This is=
 nothing more than a aluminum disc with a hole in it.=C2=A0 The kit comes w=
ith 3 discs with different size holes.=C2=A0 I got them from Jeggs #555-511=
05=C2=A0 $6.39.=C2=A0 =C2=A0I've had the TR3 for 49 years and it always ran=
 hot.=C2=A0 Even in hot weather in a 2 mph parade I rarely get above 190 de=
grees now.=C2=A0 Everyone of these cars is different.=C2=A0 My stock TR4A h=
as nothing more than the TR6 multiblade fan and upgraded water pump and I c=
an't get it over 160 degrees.=C2=A0 It could be used as a farm engine!!!=C2=
=A0 Conversely I run no thermostat in my 69 Datsun 2000 vintage race car (I=
 know blasphemy) and an electric fan for sitting on the grid.

    On Monday, June 13, 2022, 08:05:48 AM EDT, Philip Gott via Fot <fot@aut=
ox.team.net> wrote: =20
 =EF=BB=BF
=EF=BB=BF=EF=BB=BF=EF=BB=BF Speaking of restriction: the originator of the =
thread mentioned that he recently installed a new radiator.=C2=A0I once ins=
talled a custom radiator in another old car. The new radiator was extra thi=
ck with many rows of fins and tubes, replacing an old =E2=80=9Choneycomb=E2=
=80=9D style radiator. It turns out that this extra thick ( about 3 inches)=
 core was very restrictive on air flow compared to the original honeycomb. =
The car overheated on the highway, something it never did before. As with t=
he TR, the radiator fan was not shrouded.=C2=A0So, I wonder if the new radi=
ator is thick enough to reduce air flow compared to the original? That coul=
d cause operating temperature to rise.Phil Gott

Sent from my iPhone

On Jun 12, 2022, at 10:34 PM, Mike Mehl via Fot <[email-masked]> wrote:

=EF=BB=BFAgree on the restriction. You could pull the guts out of the therm=
ostat

Sent from Yahoo Mail on Android=20
=20
  On Sat, Jun 11, 2022 at 2:32 PM, ralph hansen via Fot<[email-masked]>=
 wrote:   _______________________________________________
[email-masked]

oo.com

 =20

com

ahoo.com

 =20
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<html><head></head><body><div class=3D"ydp3fea94fayahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px=
;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">I've been reading this threa=
d and what worked for me in my street TR3A along with a high capacity water=
 pump and electric fan was the old hot rod trick of replacing the thermosta=
t with a "water restrictor disc'&nbsp; This is nothing more than a aluminum=
 disc with a hole in it.&nbsp; The kit comes with 3 discs with different si=
ze holes.&nbsp; I got them from Jeggs #555-51105&nbsp; $6.39.&nbsp; &nbsp;I=
've had the TR3 for 49 years and it always ran hot.&nbsp; Even in hot weath=
er in a 2 mph parade I rarely get above 190 degrees now.&nbsp; Everyone of =
these cars is different.&nbsp; My stock TR4A has nothing more than the TR6 =
multiblade fan and upgraded water pump and I can't get it over 160 degrees.=
&nbsp; It could be used as a farm engine!!!&nbsp; Conversely I run no therm=
ostat in my 69 Datsun 2000 vintage race car (I know blasphemy) and an elect=
ric fan for sitting on the grid.</div><div dir=3D"ltr" data-setdir=3D"false=
"><br></div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"lt=
r" data-setdir=3D"false"><br></div>
       =20
        </div><div id=3D"ydp5e9ef88yahoo_quoted_6098202522" class=3D"ydp5e9=
ef88yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Monday, June 13, 2022, 08:05:48 AM EDT, Philip Gott =
via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div dir=3D"ltr" data-setdir=3D"false">=EF=BB=BF<br></div><=
div><div id=3D"ydp5e9ef88yiv6092682171"><div dir=3D"ltr"><div dir=3D"ltr">=
=EF=BB=BF<div dir=3D"ltr">=EF=BB=BF<div dir=3D"ltr">=EF=BB=BF Speaking of r=
estriction: the originator of the thread mentioned that he recently install=
ed a new radiator.&nbsp;<div>I once installed a custom radiator in another =
old car. The new radiator was extra thick with many rows of fins and tubes,=
 replacing an old =E2=80=9Choneycomb=E2=80=9D style radiator. It turns out =
that this extra thick ( about 3 inches) core was very restrictive on air fl=
ow compared to the original honeycomb. The car overheated on the highway, s=
omething it never did before. As with the TR, the radiator fan was not shro=
uded.&nbsp;</div><div>So, I wonder if the new radiator is thick enough to r=
educe air flow compared to the original? That could cause operating tempera=
ture to rise.</div><div>Phil Gott<br><br><div dir=3D"ltr">Sent from my iPho=
ne</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Jun 12, 2022, at =
10:34 PM, Mike Mehl via Fot &lt;[email-masked]&gt; wrote:<br><br></bloc=
kquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BFAgree on t=
he restriction. You could pull the guts out of the thermostat<br><br><div i=
d=3D"ydp5e9ef88yiv6092682171ymail_android_signature"><a id=3D"ydp5e9ef88yiv=
6092682171ymail_android_signature_link" href=3D"https://go.onelink.me/10787=
2968?pid=3DInProduct&amp;c=3DGlobal_Internal_YGrowth_AndroidEmailSig__Andro=
idUsers&amp;af_wl=3Dym&amp;af_sub1=3DInternal&amp;af_sub2=3DGlobal_YGrowth&=
amp;af_sub3=3DEmailSignature" rel=3D"nofollow" target=3D"_blank">Sent from =
Yahoo Mail on Android</a></div> <br> <blockquote style=3D"margin:0 0 20px 0=
;"> <div style=3D"font-family:Roboto, sans-serif;color:#6D00F6;"> <div>On S=
at, Jun 11, 2022 at 2:32 PM, ralph hansen via Fot</div><div>&lt;[email-masked]=
eam.net&gt; wrote:</div> </div> <div style=3D"padding:10px 0 0 20px;margin:=
10px 0 0 0;border-left:1px solid #6D00F6;"> _______________________________=
________________<br clear=3D"none"><a shape=3D"rect" href=3D"mailto:fot@aut=
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</div> </blockquote><span>_______________________________________________</=
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