Subject: Re: [TR] TR3 fan

From: Hoyt Duff <[email-masked]>
Date: Sun, 17 May 2015 20:28:06 -0400

I'm also surprised that no one talks about installing a fan shroud on
the stock setup. Shrouds significantly increase the efficiency of a
fan.

On 5/17/15, Andrew Uprichard <[email-masked]> wrote:
> Anyone out there running an electric fan on a generator (TR3)?  I have
> alternators in my cars but am helping a guy install a fan and he has a
> generator.
>
> Andrew
>
> -----Original Message-----
> From: Hoyt Duff [mailto:[email-masked]]
> Sent: Sunday, May 17, 2015 6:55 PM
> To: Andrew Uprichard
> Cc: Joe Curry; [email-masked]
> Subject: Re: [TR] oil coolers
>
> On 5/17/15, Andrew Uprichard <[email-masked]> wrote:
>> Really helpful. Hoyt - thank you.  But are you saying an electric fan
>> will require an alternator?
>>
>
> They typically draw more current that the dynamo can reliably provide.
>
> --
> Hoyt
>
>

-- 
Hoyt

** [email-masked] **

Archive: http://www.team.net/archive

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From: Geo Hahn <[email-masked]>
Date: Sun, 17 May 2015 18:28:15 -0700

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My experience was similar to Randall's, possibly because one of us copies
everything the other does.

I had an electric fan and halogen H4s with the original dynamo (22 amp in
my case) but never had to run both at the same time.  I did put an accurate
ammeter on both (and everything else) just to know what they draw.

Eventually I replaced the halogens with LEDs and the electric fan with a
tropical so, though it worked, it is no longer a concern.

Geo

On Sun, May 17, 2015 at 6:12 PM, Randall <[email-masked]> wrote:

> > Anyone out there running an electric fan on a generator (TR3)?
>
> I am.  Original 19 amp too, not the later 22 amp.  Works OK as long as the
> headlights aren't on.  With the 55 watt halogen
> headlights on, I still got by more or less, but only because the fan only
> runs when it is needed.  With both going, the generator
> will just barely keep up at higher rpm without any spare capacity to
> recharge the battery, so it only charges during the times when
> the fan is off.  And of course at low rpm, the original generator doesn't
> do a whole lot, so the ammeter swings well to discharge
> when stopped with the fan running.  After an hour in LA rush hour traffic,
> the battery would still have enough to start the next
> morning, but not a whole lot more than that.
>
> Have I mentioned that I recently converted to LED headlights? <G>  They
> only draw 22 watts or so on low beam, so the margin is much
> higher.
>
> -- Randall
>
>
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<div dir=3D"ltr"><div>My experience was similar to Randall&#39;s, possibly =
because one of us copies everything the other does.</div><div><br></div><di=
v>I had an electric fan and halogen H4s with the original dynamo (22 amp in=
 my case) but never had to run both at the same time.=C2=A0 I did put an ac=
curate ammeter on both (and everything else) just to know what they draw.</=
div><div><br></div><div>Eventually I replaced the halogens with LEDs and th=
e electric fan with a tropical so, though it worked, it is no longer a conc=
ern.</div><div><br></div><div>Geo</div></div><div class=3D"gmail_extra"><br=
><div class=3D"gmail_quote">On Sun, May 17, 2015 at 6:12 PM, Randall <span =
dir=3D"ltr">&lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">TR=
[email-masked]</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote=
" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><=
span>&gt; Anyone out there running an electric fan on a generator (TR3)?<br=
<br>
</span>I am.=C2=A0 Original 19 amp too, not the later 22 amp.=C2=A0 Works O=
K as long as the headlights aren&#39;t on.=C2=A0 With the 55 watt halogen<b=
r>
headlights on, I still got by more or less, but only because the fan only r=
uns when it is needed.=C2=A0 With both going, the generator<br>
will just barely keep up at higher rpm without any spare capacity to rechar=
ge the battery, so it only charges during the times when<br>
the fan is off.=C2=A0 And of course at low rpm, the original generator does=
n&#39;t do a whole lot, so the ammeter swings well to discharge<br>
when stopped with the fan running.=C2=A0 After an hour in LA rush hour traf=
fic, the battery would still have enough to start the next<br>
morning, but not a whole lot more than that.<br>
<br>
Have I mentioned that I recently converted to LED headlights? &lt;G&gt;=C2=
=A0 They only draw 22 watts or so on low beam, so the margin is much<br>
higher.<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
-- Randall<br>
</font></span><div class=3D"HOEnZb"><div class=3D"h5"><br>
<br>
** <a href=3D"mailto:[email-masked]">[email-masked]</a> *=
*<br>
<br>
//www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive" target=3D"_blank">http://w=
ww.team.net/archive</a><br>
Forums: <a href=3D"http://www.team.net/forums" target=3D"_blank">http://www=
.team.net/forums</a><br>
hs/[email-masked]" target=3D"_blank">http://autox.team.net/mailman/op=
tions/triumphs/[email-masked]</a><br>
</div></div></blockquote></div><br></div>

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From: John Wise <[email-masked]>
Date: Mon, 18 May 2015 09:21:11 -0400

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> On  17 May, 2015, at 9:12 PM, Randall <[email-masked]> wrote:
>=20
>> Anyone out there running an electric fan on a generator (TR3)? =20
>=20
I installed one on my 1960 TR3A, along wit a rebuilt radiator, about 6 =
years ago when I was living in the Phoenix area. In Phoenix you need =
every advantage you can get! =20

I have it set up to run after the engine is switched off  until it =
reaches a present temp (do not remember the setting).  I still use it =
here in Florid.  I have never had any problems nor high water temps!

John

John A. Wise, Ph.D., CPE
[email-masked]

Principal Scientist=20
Wise Group LLC
Ormond Beach, FL USA

[email-masked]

http://wisegroupllc.org/_/Johns_Resume.html

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On &nbsp;17 May, 2015, at 9:12 PM, Randall &lt;<a =
href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt;=
 wrote:</div><br class=3D"Apple-interchange-newline"><div =
class=3D""><blockquote type=3D"cite" class=3D"">Anyone out there running =
an electric fan on a generator (TR3)? &nbsp;<br =
class=3D""></blockquote><br class=3D""></div></blockquote></div>I =
installed one on my 1960 TR3A, along wit a rebuilt radiator, about 6 =
years ago when I was living in the Phoenix area. In Phoenix you need =
every advantage you can get! &nbsp;<div class=3D""><br =
class=3D""></div><div class=3D"">I have it set up to run after the =
engine is switched off &nbsp;until it reaches a present temp (do not =
remember the setting). &nbsp;I still use it here in Florid. &nbsp;I have =
never had any problems nor high water temps!<div class=3D""><br =
class=3D""></div><div class=3D"">John</div><div class=3D""><br =
class=3D""><div class=3D""><div apple-content-edited=3D"true" class=3D"">
<div class=3D""><div style=3D"word-wrap: break-word; -webkit-nbsp-mode: =
space; -webkit-line-break: after-white-space;" class=3D"">John A. Wise, =
Ph.D., CPE</div></div><div class=3D""><a =
href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a></div><div class=3D""><br =
class=3D""></div><div class=3D""><div style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Principal Scientist&nbsp;</div><div style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;" class=3D"">Wise Group LLC</div><div =
style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space;" class=3D""><span =
style=3D"font-size: medium; orphans: 2; widows: 2;" class=3D"">Ormond =
Beach, FL USA</span><br style=3D" orphans: 2; widows: 2;" class=3D""><br =
style=3D" orphans: 2; widows: 2;" class=3D""><span style=3D" orphans: 2; =
widows: 2;" class=3D""><a href=3D"mailto:[email-masked]" =
class=3D"">[email-masked]</a></span></div><div style=3D"word-wrap:=
 break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;" class=3D""><div style=3D"orphans: 2; widows: 2;" =
class=3D""><font size=3D"3" class=3D""><br class=3D""></font></div><div =
style=3D" orphans: 2; widows: 2;" class=3D""><a =
href=3D"http://wisegroupllc.org/_/Johns_Resume.html" =
class=3D"">http://wisegroupllc.org/_/Johns_Resume.html</a></div><div =
class=3D""><br class=3D""></div></div></div><div class=3D""><br =
class=3D""></div><br class=3D"Apple-interchange-newline">
</div>
<br class=3D""></div></div></div></body></html>=

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