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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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09-17-2021, 11:17 AM | #29 | |
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For me, for my usage, option 1, by far.
The tuner's 275F limit is appropriately conservative, presumably assuming 0w20 weight oil. Personally I haven't seen anything to suggest that 275F should be a problem running good synthetic 30-weight. FWIW I never encountered any factory oil temp cutoff running the same oil temps. I've read that there may be one around 300F? Quote:
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09-17-2021, 11:55 AM | #30 |
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But again, it's not the oil breaking down that's the danger here. It's the worry that the viscosity of the oil drops low enough that it's unable to provide adequate lubrication to the bearings. I'd recommend sending your oil out to Blackstone for analysis if you plan on not running and oil cooler.
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09-17-2021, 12:23 PM | #31 | |
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Just out of curiosity, did you verify with your tuner what the stock temperature limit is, whether it be 300 degrees like you've read somewhere, or some other value, and that he specifically lowered this limit in his tune? If he indeed lowered the limit, then I agree with you that you should be fine in the short term. However, if you're regularly tracking your car, I agree with @Kelse92 in that for the overall life of your engine, you should still install an oil cooler. If I were in your shoes and in the same situation, I would. |
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09-17-2021, 12:23 PM | #32 |
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Just curious if anyone has actually seen the oil temp based compensation tables in their tunes. In romraider Ive seen and played around with the coolant and IAT based timing compensation tables with some success but I’ve never found any tables that pull timing based on oil temps.
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09-17-2021, 12:24 PM | #33 | |
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I haven't sent oil out for analysis because I've seen reports of others who have. After typical HPDE-type track usage, "high" oil temps, with no oil cooler, the reports I've seen show little to no degradation of the oil, and normal amounts of wear metals. |
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09-17-2021, 12:55 PM | #34 | ||
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09-17-2021, 01:29 PM | #35 | |
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Understood, good luck. And congratulations, I hope you keep kicking ass at the track. If I were to start tracking my car after supercharging, I think I would try to introduce some additional cooling in the form of a distilled water mist directly into the intercooler/radiator/air conditioning condenser stack during mid to high RPMs. It wouldn't be too difficult to set up. I did notice that when I was installing my intercooler that the upper 1/3 of the radiator was very clean compared to the lower 2/3, as if air wasn't passing through it. Probably due to the design of the grille and the crash bar behind it. This might be a safer and inexpensive alternative that you could consider for those hot track days. |
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09-17-2021, 02:05 PM | #36 | |
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The Following User Says Thank You to Dzmitry For This Useful Post: | ZDan (09-17-2021) |
09-17-2021, 02:10 PM | #37 | |||
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09-17-2021, 03:53 PM | #38 |
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Dan, I'm getting close to hood vents as well. Let's chat at NHMS.
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09-17-2021, 04:23 PM | #39 | |
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09-17-2021, 04:32 PM | #40 |
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09-17-2021, 09:15 PM | #41 |
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Oh yes agreed. I thought you were just looking for general UOA info from this platform under high temps.
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09-18-2021, 07:47 AM | #42 | |
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Adding an oil cooler when it isn't necessary is not "cheap insurance". You're adding some risks, but you're not ensuring you won't have issues. Engines (particularly '13s) have had oiling-related failures while running an oil cooler. The oiling-related problems FA20 engines have had seem to me to be more related to oil delivery rather than oil temperature. |
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