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<DIV>Interesting discussion, I have a mildly warmed up TR4A street car. D cam,
87mm, .100 milled head and lightened flywheel. No oil cooler but I do use the
larger capacity aluminum oil pan. My issue is getting the oil hot enough. Stock
radiator with a Richard Good radiator shroud. Even at highway speeds my oil does
not get much above 180 / 190 when ambient temperatures are below 75 degrees. 180
degree thermostat installed. Driving around town the oil never gets above 180.
Ambient temperatures above 75 allows the oil to get to 220 at highway speeds. I
guess I could go to a higher degree thermostat but I’d risk overheating in
street traffic. I have an electric fan set to come on at 190. </DIV>
<DIV>Any suggestion on how to get the oil hotter? I run 20W/50 Brad Penn
oil.</DIV>
<DIV>JVV</DIV>
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<DIV style="font-color: black"><B>From:</B> <A
title=fot@autox.team.net>van.mulders.marcel--- via Fot</A> </DIV>
<DIV><B>Sent:</B> Friday, December 7, 2018 7:06 AM </DIV>
<DIV><B>To:</B> <A title=jaboruch@netzero.net>Joe Boruch</A> </DIV>
<DIV><B>Cc:</B> <A title=fot@autox.team.net>fot</A> </DIV>
<DIV><B>Subject:</B> Re: [Fot] Was: Oil Cooler or Oil filter first? Now how to
IDflow outt he adapter?</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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<DIV>Agree that the oil is important for engine cooling , although 40% seems a
lot : where could the engine oil loose all that heat, (with what medium could
the oil exchange that amount of heat) especially when there is no oil cooler? At
the risk of being pedant : Probably oil and water are not complementary in
engine cooling: the water takes away the combustion heat in the first place, the
oil takes away the heat caused by friction (heat from the bearings
especially). If the water T° gets too high, the engine will boil and an oil
radiator will not cure that. If the oil T° gets too hot, the bearings can fail
and an oil cooler is the obvious cure, not a bigger coolant radiator. Only to
explain that I believe there is no need for an oil cooler with its complications
if the oil T° is low enough without one.</DIV>
<DIV>Marcel</DIV>
<HR id=zwchr data-marker="__DIVIDER__">
<DIV data-marker="__HEADERS__"><B>Van: </B>"Joe Boruch"
<jaboruch@netzero.net><BR><B>Aan: </B>"van mulders marcel"
<van.mulders.marcel@telenet.be><BR><B>Cc: </B>"Rocky Entriken"
<rocky@spitfire4.com>, "fot" <fot@autox.team.net><BR><B>Verzonden:
</B>Vrijdag 7 december 2018 03:36:00<BR><B>Onderwerp: </B>Re: [Fot] Was: Oil
Cooler or Oil filter first? Now how to ID
flow
outt he adapter?<BR></DIV>
<DIV> </DIV>
<DIV data-marker="__QUOTED_TEXT__">
<DIV>
<DIV>The oiling system provides a significant amount of engine cooling. It
has been a while since I have read the statistic, but I seem to recall it
accounts for about 40% of the engine's cooling. When I first raced my
1296+ Spitfire, it did not have an oil cooler, and it was overheating. I
installed an oil cooler and never had another overheating issue. Maybe the
oil cooler was compensating for an inadequate radiator, but it worked.</DIV>
<DIV> </DIV>
<DIV>In my TR3 I often see oil temps over 220 deg F. When pushing it hard
the oil will get up around 280. I have 2 oil coolers, one on each side of
the radiator. Oil temp is measured in the pan. </DIV>
<DIV> </DIV>
<DIV>Modern race oils can take temps over 300 deg F without a problem. Oil
that is too cold can lead to moisture accumulations and sludge build up, in
addition to robbing horsepower. I have heard that NASCAR engines are always
running oil over 300 deg. So whether your engine needs a cooler depends on
what oil temps you see on the track and if your cooling system needs some
help. Hot oil is a good thing. Cool oil or excessively hot oil is
not good. Joe(B)</DIV>
<DIV><BR><BR><BR>From: "van.mulders.marcel--- via Fot"
<fot@autox.team.net><BR>To: Rocky Entriken
<rocky@spitfire4.com><BR>Cc: fot <fot@autox.team.net><BR>Subject:
Re: [Fot] Was: Oil Cooler or Oil filter first? Now how to ID flow outthe
adapter?<BR>Date: Thu, 6 Dec 2018 12:02:07 +0100 (CET)<BR><BR></DIV>
<DIV>When starting road racing (circuit racing) I had an oil cooler in my car
just like about everyone else. The oil T° was always low, less than
100°C/212°F. In 2010, to get my car nearer the minimum weight, I removed the
oil cooler and I'm racing always without the cooler since then.</DIV>
<DIV>Can't say that the oil T° is higher without the cooler, maybe a
little bit, but still always lower than 100°C , even after 1 hour races. I'd
like to have the oil T° a bit higher! So I believe most Triumph TR 4
cyl cars don't need an oil cooler at all, maybe the oil T° is remaining
too low in sprint races. There are only 3 main bearings and 4 big end bearings
to heat the oil by friction. Compared to a modern engine, the oil isn't heated
up much by the distribition parts and in the cylinder head. About 80 bhp / litre
is a lot for our old engines, but I think the modern oils have a rather easy
life in it.</DIV>
<DIV>Marcel</DIV><BR><BR><SPAN style="FONT-SIZE: small; COLOR: #000000"
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