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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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10-04-2016, 07:30 AM | #29 | ||
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@GSpeed is going to measure transmission temps next, so they should have an answer to your q soon. Quote:
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10-04-2016, 09:36 AM | #30 |
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Now I just wish that MT engineers were smart enough to design in a oil pump in the mechanicals.
For a stock setup it would do nothing but keep the oil circulating. For an add on aftermarket cooler, you would just tap into the correct galleys and have a trans cooler that requires no pump. Otherwise you need an external (usually) electric pump in addition to the cooler.
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10-04-2016, 09:51 AM | #31 |
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The problem there is, if there is too much cooling, the trans would not get up to and maintain operating temp as a DD. A car has to be designed either as a track car or a DD in some respects. To be a DD, it requires certain upgrades to be a good track car- trans oil and motor oil coolers are a must. If they were included on the stock car, either it'd be expensive to include because of the additional equipment (some system to disable for DD and enable for the track) or run too cool which is also bad.
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10-04-2016, 01:33 PM | #32 | |
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10-04-2016, 01:34 PM | #33 | |
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10-04-2016, 02:50 PM | #34 | |
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10-04-2016, 03:05 PM | #35 | |
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10-04-2016, 04:42 PM | #36 | |
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10-04-2016, 05:59 PM | #37 |
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10-04-2016, 08:03 PM | #38 |
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10-04-2016, 08:14 PM | #39 |
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10-04-2016, 08:36 PM | #40 | |
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Here is an interesting read: http://www.machinerylubrication.com/...tion-lubricant So, I reckon that the transmission oil in a FR-S/BRZ can be "broken down" by the process of oxidation. So, if the temperature of the oil exceeds a threshold point, the oxidation process can take place. As @Spartarus mentioned, "(I scraped it off the Internet) generally, oxidation will reduce the service life of a lubricant by half, for every 10 degrees C (18 degrees F) increase in fluid temperature above 60degrees C (140 degrees F)". However, the manufacturers can add antioxidants and other compounds to slow down the process. I want to thank @Spartarus for his insightful and thorough contribution to the discussion. What is the conclusion .......hell, I'm not sure ..... humfrz |
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10-04-2016, 09:03 PM | #41 |
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@JacksTrans is supposedly developing a transmission cooler
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10-04-2016, 10:50 PM | #42 | |
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