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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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08-04-2022, 09:06 PM | #57 | |
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08-05-2022, 10:01 AM | #58 | |
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CSG's recommended scheduled maintenance for track-oriented Subaru BRZ / Toyota 86 For cars being regularly raced or taken to track days, we recommend a more agressive maintenance schedule. Suggested change intervals are at mileage or age, whichever comes first Engine Oil & Filter: every 25 hours or 3000 miles / 5000 Km. Consider sending out your used oil for analysis to monitor wear on your engine and help you determine optimal oil change intervals for your applicationWe recommend using motorsports-grade engine oil from manufacturers like Pakelo or Motul. Unless you know for certain that you need a specific oil weight for your racing or off-road application, you should use oil with the viscosity grade recommended by Toyota or Subaru in the owner's manual of your car. This is usually SAE 0W-20 for most regions. IMHO, a quality, properly installed oil cooler has a very low risk of failure. I would also believe that subjecting complex molecules (oil) to repeated high temperatures will cause some degree of breakdown of said molecules. If I am going to err on my oil temps, I will err on the side of caution and keep my oil cool. |
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08-07-2022, 01:00 AM | #59 |
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Do people only care about the oil temp and not the oil pressure now? I mean its great that synthetic oil is OK with high temps but the oil pressure and now RTV seem less impressed.
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08-07-2022, 03:13 AM | #60 |
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Oil pressure is just a signal on us ensuring there's "an oil film" on the bearings, etc. We measure the "back-pressure" caused by the pumping, not necessarily what happens in the engine on the bearings. That said, when the engine oil temps are pretty hot, it's obviously much easier for the pump to recirculate is as well with much reduced friction.
For more than a decade, I could never see a definitive answer on what the oil pressures should be. It used to be 60+ PSI, but later when manufacturers switched to variable speed pumps, it became clear that they didn't care for anything more than 45 PSI, at least some of them. As a result of all this, I think oil pressure gauge is the most useless gauge there is for me. If it hits zero, it's too late. If it's not zero, I don't know what it should be... When the engine oil is very hot, it does only 10-15 PSI idling on same engines, freaking out some, but you don't need much oiling at idle anyway, and they still make more than 30 PSI at higher RPMs, so no problem. Anyway this is my 2 cents : ) There's quite a bit more discussion on Bob's the oil guy forum.
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08-07-2022, 03:50 AM | #61 | |
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08-07-2022, 09:06 AM | #62 | ||||
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For me, 25 hours track usage is nearly 2 years. I've been changing after every 4-6 track hours, honestly I think I'll consider extending that to fresh oil beginning of season, with one oil-change mid-season which would be 6-8 hours of track usage between changes.
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If tracking the car, 30-weight synth is a good idea for better high-temp/high-shear (HTHS). With or without an oil cooler. Quote:
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Last edited by ZDan; 08-07-2022 at 11:00 AM. |
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08-07-2022, 01:27 PM | #63 |
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I think we have beaten this horse to death. Lay it to rest guys. Options are out there for a reason. Some will run Oil Coolers and others won't.
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08-07-2022, 02:37 PM | #64 | |
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08-07-2022, 05:45 PM | #65 |
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I've installed a few oil cooler kits, and they often develop small leaks in time, creating mess around lines. Those -an connections are very sensitive to exact tightness you need to get them to, and retightening also messes up the connection. The barbed cheap connections fare better regarding leaks, but they might just pop under stress. And most importantly, if any of these lines ever fail, unlike coolant, you'll likely damage engine in short order, not to mention possible spin and crash.
Touching on oil system is the last thing I'd do, and I'd only do it if it's absolutely necessary.
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08-08-2022, 08:33 AM | #66 | |
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https://www.ft86club.com/forums/show....php?p=3453305 https://www.ft86club.com/forums/show....php?p=3391153 https://www.ft86club.com/forums/show....php?p=3048051 https://www.ft86club.com/forums/showthread.php?t=110679 https://www.ft86club.com/forums/showthread.php?t=45538 https://www.ft86club.com/forums/showthread.php?t=40254 etc. |
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08-08-2022, 10:12 AM | #67 |
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The problem with air to oil cooler isn't just leaks, you also run into problems with overcooling/longer heat up periods of the oil. In some cases, pending on your geographic location and model of oil cooler, your oil might never get up to temp in the winter! OEMs install factory coolers/warmers for a reason. I rather run hotter oil for the odd track event (less than 1% of total usage) than oil that it too cold for the street (99% where my engine operates). I really think oil cooler is a very "YMMV" debate.
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08-11-2022, 06:49 AM | #68 |
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Everyone makes a great point. Clearly there's no clear cut right answer here. Essentially if your oil goes over 250, you should monitor and try to cool it down. I am curious how high the oil will get this Fall. Right now ambient temps are avg. in the 90's. We will see...
I like how thread evolved to oil change intervals especially with the RTV issue. Questions- changing the oil much more frequent will help get rid of some of the RTV? Based on what I see, RTV can come from the timing chain cover and not only the pan. So by changing more frequently, could some of that RTV get drained out?
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08-11-2022, 08:38 AM | #69 | |
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08-11-2022, 09:49 AM | #70 | ||
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