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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 07-25-2022, 09:15 PM   #15
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They are lower, on gen 1 I was at 275, on gen 2 I am at 260-ish.
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Old 07-25-2022, 10:51 PM   #16
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I thought with new models having integrated oil cooler (Forester OEM like) Temps should be more lower
They are, but not low enough.
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Old 07-26-2022, 12:22 AM   #17
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Originally Posted by Teseo View Post
I thought with new models having integrated oil cooler (Forester OEM like) Temps should be more lower
The new motor outputs more power so the gen 2 cooler probably would have been pretty darn good for gen 1 cars but its effectiveness in gen 2 is better than nothing but we're all still regularly exceeding 260F.
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Old 07-26-2022, 09:39 AM   #18
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The new motor outputs more power so the gen 2 cooler probably would have been pretty darn good for gen 1 cars but its effectiveness in gen 2 is better than nothing but we're all still regularly exceeding 260F.
They weren't enough on gen1 either.
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Old 07-26-2022, 12:00 PM   #19
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The new motor outputs more power so the gen 2 cooler probably would have been pretty darn good for gen 1 cars but its effectiveness in gen 2 is better than nothing but we're all still regularly exceeding 260F.
I bought the GR68 oil cooler for that reason, need to source the stem and hoses tho
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Old 07-26-2022, 01:48 PM   #20
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Integrated oil coolers like these more than anything, increase oil temps faster at cold start. If you look anywhere else in the world, they are actually called an oil heater. We're the only place that calls them a cooler. Strange.

Testing shows this style of liquid cooled oil coolers more stabilize temp spikes and 'help' control highs and lows. Since coolant temps are often ~200° or better, your delta to oil temp is horrible. That delta is what makes a cooler efficient at cooling. This is why if you REALLY want lower oil temps and better control, a thermostatically controlled remote oil cooler that takes advantage of much lower ambient airflow, is the way to do it.
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Old 07-26-2022, 01:54 PM   #21
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Quote:
Originally Posted by Teseo View Post
I thought with new models having integrated oil cooler (Forester OEM like) Temps should be more lower

The forester OEM "cooler" is really more of an oil warmer. It helps engine oil get to operating temps more quickly, but the cooling effect of a tiny heat exchanger running 200F coolant through it is going to be minimal anyway, especially compared to an air-to-oil exchanger.
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Old 07-30-2022, 12:14 PM   #22
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Hey,

Just wondering what's the range of oil temps people are seeing? Normal street driving temps are 195-210 depending on load.

When I was at the track I was experiencing temps as high as 235, maybe 240. 87 degrees ambient out. Oil temp would quickly dropped once I reduced load.

This a normal range?
really good temps. At that range you do not need an oil cooler at this time.
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Old 07-30-2022, 04:38 PM   #23
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As I understand it, oil to water heat transfer is better than oil to air transfer. Is there some way to estimate the size of an air cooler vs the size of a water cooler.


I have a JR dual rad. At my last event I was running the same oil temps as a guy that had an oil to air (I don't know what brand or size).
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Old 07-30-2022, 05:35 PM   #24
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Just throwing this out there, as I do:

If you’re doing limited HPDE usage, 20 minute sessions, 275F indicated oil temp with good synth 30wt is not that big a deal. IMO…
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Old 07-30-2022, 06:43 PM   #25
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Just throwing this out there, as I do:

If you’re doing limited HPDE usage, 20 minute sessions, 275F indicated oil temp with good synth 30wt is not that big a deal. IMO…
You know that most of us would feel like we are having a colonoscopy (without anesthesia) if our oil temps got anywhere near 250*.
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Old 07-30-2022, 07:42 PM   #26
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Just throwing this out there, as I do:

If you’re doing limited HPDE usage, 20 minute sessions, 275F indicated oil temp with good synth 30wt is not that big a deal. IMO…
How many total miles do you have now? I hope that we both keep our cars and, down the road, compare notes with respect to seals, oil control solenoids,... stuff like that. I'd be just as interested to learn that I'm wrong. In general, the hotter stuff gets, the sooner it gives up. Coil packs, for instance. They're mounted to, and surrounded by the valve cover, Oil temp affects way more than rings & bearings.
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Old 07-30-2022, 08:16 PM   #27
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Originally Posted by Ultramaroon View Post
How many total miles do you have now?
Just over 70k miles, 40+ track days.

Quote:
I hope that we both keep our cars and, down the road, compare notes with respect to seals, oil control solenoids,... stuff like that. I'd be just as interested to learn that I'm wrong. In general, the hotter stuff gets, the sooner it gives up. Coil packs, for instance. They're mounted to, and surrounded by the valve cover, Oil temp affects way more than rings & bearings.
Temps of all that stuff is going to be driven more by coolant temp than oil temp. My coolant temp holds at 200F at the track, whatever the ambient temp (up to 98F at Thompson a couple years ago).
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Old 07-30-2022, 08:40 PM   #28
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Just over 70k miles, 40+ track days.



Temps of all that stuff is going to be driven more by coolant temp than oil temp. My coolant temp holds at 200F at the track, whatever the ambient temp (up to 98F at Thompson a couple years ago).
That's quite a cavalier dismissal. Where does coolant touch any of the components that I just mentioned. Think again.

edit: I mean it sounds like you're more invested in being right, than in rational consideration. It's fine as long as it's acknowledged.

I've never seen numbers for the sump temp compared to post cooler temp. That would be interesting.
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