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#1
03-04-2009, 12:58 PM
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oil cooling or not?
how many of you run engine oil cooler for their engine?
i have an oil cooler on my formula75 since long time (a previous owner add it). i drive all the time and all the weather winter/summer. i'm thinking about 2 things. first remove the cooler line and go back to stock configuration, without any engine oil cooler. second, add a thermostat to my actuel set up. the real question is, do i really need one? engine is mostly sotck at this time, 2.56 gear... |
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#2
03-07-2009, 10:41 AM
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i forgot to tell i have a 350 in.
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#3
03-07-2009, 11:29 AM
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Unless your driving in the Sahara desert or your engine has a overheating issue. There should be no need for a oil cooler on a stock Pontiac 350. If car has an overheating issue, then i would start with looking at the cooling system. The oil cooler would be a bandage to the real issue.
__________________
Scott If you always do what you always did  You always get what you always got  
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#4
03-07-2009, 11:53 AM
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I have a fair amount of experience using an oil cooler. Here in the desert southwest the more heat you can remove from your motor, the better off you are. Usually. I added the 'usually' because your oil absolutely must reach a minimum of 220 degrees. At this temp the oil is still considered 'cool' but its hot enough to burn out the moisture that condenses inside the crankcase from the normal heat cycling the engine experiecnes during daily use.
If your oil does not get hot enough to vaporize this moisture, over time bad things will happen. And it is VERY easy to overcool your oil in a car that only sees normal daily use. So, if youre going to keep the oil cooler, I would add the thermostat, AND I would install an underhood temp guage so a periodic check verifies that the oil is indeed reaching that minimum 220 degree mark. |
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#5
03-07-2009, 12:22 PM
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oil thermostats start open at 160° but ar not totaly close when cold. full open at 180°. it's far from 220°. i have no heat problem since i change water rad for a aluminium one and 180° engine thermostat.
so i think oil will never be over the temp of the engine. maybe +20° but no more. i don't live in a hot country. is oil temp range really 220? |
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#6
03-07-2009, 04:39 PM
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Bunch of fellows from the old country told me that the oil in the motor, standard trans and diffs gets hot enough to boil any condensation or water in it.
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#7
03-12-2009, 12:19 AM
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I had oil coolers on two of my 67's, and both are now sitting on the shelf in the garage. Oil stayed too cool, and between that big engine oil cooler and two transmission coolers in front of the radiator, the water temp stayed warm. Now the oil gets up to temperature and the water temp stays lower because of better air flow through the radiator.
__________________
Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon in progress. |
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#8
03-12-2009, 11:55 AM
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what about using a thermostat?
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#9
03-12-2009, 03:23 PM
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Quote:
__________________
Some Fear, Because if you've never been afraid- just a little. You're obviously not going as fast as you could be. |
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#10
03-12-2009, 03:28 PM
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well, all the oil thermostat i've found at summit are 160-180 range. start open at 160, fully open at 180.
i'm thinking about Earl's Performance 503ERL 
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#11
03-12-2009, 04:31 PM
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 Oops, my bad. For some reason I thought you meant a coolant thermostat. Sorry.
__________________
Some Fear, Because if you've never been afraid- just a little. You're obviously not going as fast as you could be. |
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#12
03-12-2009, 04:34 PM
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i have already change my water thermostat from 195 to 180. no over heating issue
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