Oil cooler tech
#203
Boost Pope
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Depending on the design of the plate, and its orientation, it's possible to take a measurement either pre or post-cooler.
This one, for instance, has ports on both sides:
#210
Given the fact that many of them shut it down around 270, I would think beating on it all the time near say 250 is probably a bad idea. If you did it, I'd swap the oil afterwards.
#212
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The question remains, is this oil temp prior to the oil cooler? If yes, and the oil is then being dropped to 220-230 in the cooler then it is in the acceptable operating range for T6 synthetic on the track. I would back off at about 260-265F. Racers often run higher in the heat of battle if they must, but they rebuild engines more often.
It typically gets slightly more difficult to get hotter as the temp increases (unless you have real shortcomings in the cooling system) because as the difference between ambient and the oil temp continues to grow the cooler actually cools a little better, all things considered. Don't cook your engine.
It typically gets slightly more difficult to get hotter as the temp increases (unless you have real shortcomings in the cooling system) because as the difference between ambient and the oil temp continues to grow the cooler actually cools a little better, all things considered. Don't cook your engine.
#214
Dunno. The main source of heat into the oil is from being sheared in the bearings, then it gravity drains into the pan. If you could measure the oil temperature going into the oil pump, whatever temp the oil is once it's in the pickup tube, it's not going to get any cooler unless there's an oil cooler it's pumped through. Oil pump will heat it some, resistance flowing through oil passages, filter restriction, heat from surround engine components/block, etc.
I read online that the "normal" spot to measure oil temps is in the oil pan sump, so that's where I put my sensor. I wonder where the germans put theirs? I'll look for it on my mercedes next time I change the oil.
I read online that the "normal" spot to measure oil temps is in the oil pan sump, so that's where I put my sensor. I wonder where the germans put theirs? I'll look for it on my mercedes next time I change the oil.
#217
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<p>Wouldn't the best place for a temp sensor to be post cooler, so you know the actual temp of the oil going into your bearings?</p><p>Then you can look at the properties of your oil and see when you should shut down.</p><p>I also have the issue of not trusting my oil temp gauge, because my coolant gauge wasn't exact out of the box.</p><p>Oh well. Good thing its a 1.6</p>
#218
<p>Wouldn't the best place for a temp sensor to be post cooler, so you know the actual temp of the oil going into your bearings?</p><p>Then you can look at the properties of your oil and see when you should shut down.</p><p>I also have the issue of not trusting my oil temp gauge, because my coolant gauge wasn't exact out of the box.</p><p>Oh well. Good thing its a 1.6</p>
#220
Oil will get a bit warmer when pumped due to friction, but that's pretty low (low friction is, after all, the main point to having oil).
I suspect it doesn't really matter all that much where you measure it. Personally I change the oil before every track day, because the cost just isn't significant compared to everything else.
--Ian