Oil temperature

[Inygknok]

Well, IJ keeps telling me I shouldn't be too cheap and get a thermostat for the new oil relocation kit I want to get for my '88. Thing is, I got to thinking (wow).... over here in PR, it's just a joke when we say it's cold. I think the lowest temperature PR has ever seen in it's history, in any particular spot far away from wherever I would ever take my car, may have been in the very low 50's, and I think that's exaggerating. Maybe in a long, dark, rainy night in the mountain tops.


So.... I know oil can get too cold and that's bad, but it can only get too cold if the ambient allows for it.... and this being PR, I'm quite sure that isn't happening unless someone blasts us with a D-Day freeze ray.


So, anyone think my logic sounds pretty right or that I should be stingy and just complicate things more buy getting the thermostat system put up?

 

[figgie]

well IJ is correct and your logic is not very logical

with high heat comes higher tempratures inside the motor all around. If the outside air temprature is at 180 at all times. Then i would agree with you but being in PR. 80-90 is normal which is about 100 degree less than where the oil temprature SHOULD be at

Heat likes to go to cooler places. In this case ambient. Being stingy is your choice but i live by what i say.

Do it right the first time, or you can do it right the second time after you pop the motor since you were stingy the FIRST time

 

[IJ.]

Think of it this way

mild to cold day for PR it rains a bit then factor in the windchill at 100 mph = very cold oil.......up to you it's not like they're expensive Ingy.

 

[cjsupra90]

Ian (IJ) is correct, they are not that expensive and you really should run one. If your oil cooler is very efficiant (not the case if it is a shitty one, but then why even bother in the first place), it will have no problem cooling the oil to much even with ambient temps in the 70's. The other reason is that with out a thermostat it will take longer for the oil to warm to opperating temps, and as you already know to cold of oil temps is not a good thing. now think if it lets say takes 5 minutes for the oil to reach opperating temp with no oil cooler and then we add a good cooler with out a thermostat, it may take 10 minutes for the oil to reach opperating temps. That is as you can see 5 extra minutes of running without the oil protection as it should be every time that you start the car after it has sat for enough time for the oil to cool off significantly. Althought these are not exact real world numbers, they are examples of the point that I am making.

 

[shaeff]

just get one of these from summit:

in the summit search function, type: BMM-70259

that's what i have. (Ian has the same thing, gee, i wonder where i got that idea? )

-shaeff

 

[Afunk]

dude, buy the permacool one, I have it and it is 1/2 the price of the B and M and the EXACT same thing, same temp open/close and 10%/90%

 

[Inygknok]

I was actually being stingy about making things a bit more complex. I want to see how far I can go making the car as simple as I can while still having a daily driver fully capable of defending itself damn well. I really like the idea of having less stuff to break (hence why I'm taking out the ISC and the EGR. Screw bad idle when warming up, already does that anyhow).


Fine, I'll listen to IJ.... bastard


I'll check tomorrow with the local speed shops to see if they can source the same t-stat here in PR to avoid the S&H.


I'm using the stock oil cooler, but if I am able to find a better one for a low price here in PR, I'll use that one for the PS instead.


Anyhow, to figgie. True, the temp here in PR remains at 80-90 most of the time. Usually drops down to the 70's during the night with the rare high 60's during VERY rainy and cold nights, which I don't drive in because drivers here are...... suicidal? Yet, the engine is fully capable of reaching temperatures much higher than ambient temp. I know heat goes to cooler places, I did study some physics and chemistry .


BTW, anyone got the link to the thread with the diagram on how to do the t-stat for the oil cooler "properly"?

 

[IHI-RHC7]

Iny, DO NOT use the stock oil cooler full flow.
It's just not big enough to flow the volume of oil that our pumps push, and our motors need. I'm running the B&M oil control thermostat and a B&M supercooler 8.5X11X1.5 cooler, I got it for $60 new from summit.

 

[IJ.]

Mr Bastard to you young fella

Jake's correct DON'T use the stock cooler, it can only flow enough to be a bypass cooler not a full flow!

 

[IHI-RHC7]

HAH! I see that they're running $100 now... Quite a mark up from july, when it's hot...