[DeTomaso] Oil Temperatures

[Charles McCall]

I agree with Jim based on observation of the factory oil temp gauge in my
GT5-S. Oil cooling should not be necessary for "normal" use. 

What I've seen is that in real life (racing would be something else) is that
oil temp is directly related to sustained rpms. Anything below 4000rpm and
my oil temp is roughly 200F. Increasing cruising rpm directly affects oil
temp - at roughly 4200rpm the oil temp rises to about 240, and 4500 rpm is
starts to get uncomfortably high - 275 or more.  As a result the oil temp
was what defined my sustained cruising speed.

Back before two significant events occurred - Europe got serious about speed
limits and I got married, both of which affected my typical cruising speed
in the Pantera - I investigated options. The conclusions I got out of
reading articles, asking questions on the Forum, and speaking to others:

1) Air to oil can work well, but in a Pantera it is difficult to locate the
radiator where it will get appropriate airflow. Hall's solution of
installing it in the rear wheel well was thought to be wishful thinking.
Installing a radiator up front would cool well but Jack DeRyke warns about
the danger of long oil lines and effect on oil pressure
2) In a Pantera, many people felt that oil to water was the best solution.
Several people mounted a Ford unit - benefits include warming up the oil a
little quicker and the fact that installation is easier in a Pantera. This
is probably the path I would have pursued had I decided to get serious about
limiting oil temp. Current speed enforcement norms have more or less
eliminated that need...


-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of wawuzat via DeTomaso
Sent: domingo, 12 de junio de 2016 18:07
To: detomaso at server.detomasolist.com
Subject: [DeTomaso] Oil Temperatures

Need to chime in on this subject....
 
I have a feeling that most of the Pantera's out there have absolutely  no 
need for an oil cooler.  I live in New Mexico and it gets hot.   Just ran
the 
Pantera yesterday in 95+ degree weather.  My car has a 10  quart baffled 
oil pan and I run 10W40 oil (non-synthetic).
 
I use a Pantera Performance's two pass radiator (Ron Davis  design).  I 
RARELY ever see 200 degrees on my oil temperatures.   The only time I ever
see 
temperatures that high is when I get into slow moving  traffic (city 
driving).  Running at highway speeds yesterday my water  temperature was 170

degrees and the oil temperature at about 180-185  degrees.  That is on a 95
degree 
day.  
 
I have two cooling fans for the radiator that are both manually controlled  
and at highway speeds they are always turned OFF.  The only time I use a  
fan (I control each fan with a separate switch) is in stop and go  traffic.

It is quite rare that I run both fans at the same time.  

I drive the car hard and can only recall a handful of times that the oil  
temperature reached 200 or higher (NEVER at highway speeds or  faster).   I 
would highly recommend a 10 quart oil pan for those  wanting to keep the oil

cool and a nicely designed radiator doesn't hurt  either.
 
Hope this info helps!
 
Jim