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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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11-19-2020, 05:22 PM | #141 | |
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11-19-2020, 05:54 PM | #142 | ||
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11-19-2020, 06:24 PM | #143 |
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Around town, 190-210 coolant, and ~210 oil is fairly normal, at equilibrium.
Highway cruising, 190 coolant 225-230 oil is also fairly normal. Highway cruising in 3rd gear, simulating track rpms, will take that oil to 260 with a quickness. Less than 1 minutes, if already at equilibrium temps. |
11-19-2020, 07:00 PM | #144 |
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While I have to open my hood to adjust the bypass valve, it beats the hell out of removing the bumper cover to tape off the cooler. I daily it just a smidge under half capacity. With full flow through the cooler, I can drive in anger, never below 5 Krpm for an unlimited duty cycle. Oil temp stays below 190F and drops to 150-ish when cruising. That's just bypass flow through the thermostatic plate. Coolant is always dead on. Never overheated. Hoses for the circuit are huge. I lose only a couple PSI. Barely measurable.
I should think about the trans and diff but the engine's stock.
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11-19-2020, 10:21 PM | #145 | ||
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And, yes, absolutely worth knowing.
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11-20-2020, 07:30 AM | #146 | |
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Well anyways, this subject has been beaten to death as always, and I think a lot of good points were covered. I think the rest of it is a waiting game to see what other results/data people can provide. |
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11-21-2020, 03:19 AM | #147 |
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You could attached a heat shield or wrap to the over/front pipe(s) and a head shield where the exhaust passes by the diff. The trans doesn't generate much heat itself but definitely takes in a bunch of heat from that hot pipe running right along side it.
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11-21-2020, 01:53 PM | #148 |
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I never really considered driveline losses before this forum/community. Old dogs learning new tricks.
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11-22-2020, 10:45 PM | #149 | |
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I have the forester cooler (Ned Auto kit), with the coolant from the throttle body. Before I installed it I was seeing 266F max oil temp. With the cooler the max I've seen is 248F I think. So around 18F of cooling. Maybe not enough for some people, but I'm satisfied. 15-20min track sessions. I'm not sure if people saying it doesn't cool the oil have actually tried it? Maybe the throttle body piping (what I did) is better than the heater core piping. Also if you run on tracks more demanding on the engine and have oil temp at 280F, even with 15F less, that's still a bit high I think. |
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11-22-2020, 11:09 PM | #150 | |
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11-23-2020, 06:31 AM | #151 |
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I have been using the OEM style cooler for two years now. (NED kit piped into the throttle body) Here is my original comparison: https://www.ft86club.com/forums/show....php?p=3166393 In that case temps were close.
I have been logging temps ever since in a variety of conditions. 10-15 degrees is what it will get you. Highest I saw pre cooler was 280F on an average session, and post cooler the highest I have seen is 270F at the end of a very long session. Based off the curves in my original comparison, even the small cooler makes it slightly more stable, the temps hit more of a plateau. Usually I avoid hotter days and/or long sessions and I can be comfortable in the 250s. |
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11-23-2020, 07:34 PM | #152 | |
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Amazing test results that gives me mixed feelings -- I can rest easy knowing that peak temps are "only" going to be around 280F but at the same time I wish I could do the easy sandwich-style oil cooler mod (rule prohibitive). I've come to the conclusion though that 0w30 is probably the best weight to use when track days are involved and just picked up 4 jugs of Pennzoil Platinum Euro LX. |
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11-28-2020, 02:50 PM | #153 |
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Similar. The sessions without the cooler were pretty hot. But I have done sessions similarly hot with the cooler. I also have not notice a statistically significant oil temperature difference with a change in ambient temperature of 10-15F. Doesn't seems to affect oil temperature, but of course I would guess a 55F vs 95F ambient temp will make a difference. |
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