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Re: Cooling with Oil

To: Steve Laifman <laifman@flash.net>
Subject: Re: Cooling with Oil
From: Bob Palmer <rpalmer@ames.ucsd.edu>
Date: Mon, 01 Dec 1997 11:16:15
Steve, et al.,

Dale, of Dale's Restorations
         1468 Gage Street
         San Bernardino, CA 92408
         Tel: (909)799-2099

His last name (Polish) is Akuszewski.  Pronounced A-Koo-Shev-Ski.  Don't
try and pronounce it while looking at his correctly spelled name.
Regarding oil cooling, some years back I fitted a Mazda RX3 oil cooler to
my Tiger.  This is a nice cooler with a built in temperature bypass valve.
For the last ten years I have run without it, using only a ten quart
baffled pan.  I also use synthetic oil to improve high temperature
tolerance.  Probably one only needs a separate oil cooler if they are
running very long and very hard (not just 1/4 mile drag runs for example).
I do not believe that cooling the oil is an alternative to cooling the
water in a small block Ford.  In the Mazda rotary, at least half the total
engine cooling was accomplished by oil cooling, hence the very efficient
oil radiator on the rotary engines.  I've wondered just what percentage of
cooling is "air cooling" on even a water cooled engine.  I suspect it is
typically quite a bit.  As much as 25% perhaps??  It seems like it is
important to get good air flow around the engine as well as through the
radiator, but it's hard to separate the two.  If air cooling was
unimportant in "air cooled" engines, then why would they go to the trouble
of making fins on the cylinders, etc.??  I certainly don't know what the
percentage would be, but I'd guess that not more that 50% of the heat is
dissipated in the oil cooler.  Any experts out there know the answer to
this trivia question?

Bob

At 10:30 PM 11/30/97 +0100, you wrote:

>Best advise - Find someone who has done it properly, and follow his
>success. I believe Dale A., in San Bernadino, has had a great deal of
>experience here. (I'd spell his last name, but I'd get it wrong - help
>me here)
>
>Steve
>
>-- 
>Steve Laifman         < One first kiss,       >
>B9472289              < one first love, and   >
>                      < one first win, is all >
>                      < you get in this life. >
>                    
>
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Bob Palmer
UCSD, AMES Dept.
rpalmer@ames.ucsd.edu

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