11-18-2020, 02:00 PM | #113 |
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Surely, there must be a reason someone decided that lower oil temps were better on the FA24, even though it results in worse fuel economy.
Last edited by CSG Mike; 11-18-2020 at 02:20 PM. Reason: typo |
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11-18-2020, 02:01 PM | #114 |
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Don't bother with the pickup and baffle. You won't need them.
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11-18-2020, 02:09 PM | #115 | |
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11-18-2020, 09:03 PM | #116 | |
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Indeed
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11-18-2020, 09:35 PM | #117 |
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That's amazing I always wondered why nobody had tried rotating a tall/narrow oil cooler like that to reduce the flow restriction. Great to see it actually done!
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11-18-2020, 09:43 PM | #118 |
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BTW, that scatter plot is for shit, really. Addition of the oil cooler data does nothing but show head loss from its use. A cooler doesn't change the thermal properties of the oil itself.
It absolutely works as intended. Thanks!
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11-18-2020, 09:58 PM | #119 | |
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11-18-2020, 10:48 PM | #120 | |
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11-19-2020, 02:19 AM | #121 |
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They should touch... the oil cooler and radiator, they should touch (ideally) unless a low pressure can be created behind.
I don’t remember where I saw the research but when an oil cooler is placed in front of a radiator with a gap in between the air turbulence between the two reduces the flow behind the oil cooler and through the radiator. However if the fans are running behind the radiator then a low enough pressure zone is created that mitigates it. If the two are touching then the air flows through both without impedance - no fans needed. Kind of moot point here since just about everyone has fans running but still interesting. On my former car I had a fan on only half the radiator so I made sure to mount the oil cooler on that side.
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11-19-2020, 07:14 AM | #122 |
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Right, but I don't think anyone here was claiming that the oil cooler changed the thermal properties of the oil. The plot is simply used to show pressure changes at various temperatures.
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11-19-2020, 07:28 AM | #123 | |
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Also, from doing some quick reading (as I don't know a lot about the WRX yet), WRX owners don't seem to get up past 260 much either with track use. |
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11-19-2020, 08:33 AM | #124 |
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Pressure loss due to cooler is worth knowing, along with how much it cools the oil. That was the point of showing it.
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11-19-2020, 08:35 AM | #125 |
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Both of those parts would also be illegal for STX class, FWIW
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11-19-2020, 08:41 AM | #126 | |
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19k-26k btu/hr IIRC off the top of my head and 3 psi of pressure drop. Which is pretty insignificant if you look at the benefit it provides.
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