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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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01-29-2019, 02:24 PM | #43 |
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What's the purpose of making the plate removable aside from initially casting the ports? What would be the ramifications of welding the plates on?
Thanks so much to the guys that are sharing their findings. |
01-29-2019, 03:03 PM | #44 | |
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For the record, I'm not convinced that the gap is a big deal. Same goes for the flat head cap screws. One is and the other is
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Last edited by Ultramaroon; 01-29-2019 at 03:25 PM. |
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01-29-2019, 08:50 PM | #45 | |
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Doesn't matter how tight you make the screws it is not going to make any difference to the areas that aren't sealing . Showed the guy who is building my motor and he reckons it would lead to cavitation at high revs as it only takes a small amount of air to help make it happen and we need to fix it . |
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02-10-2019, 12:11 PM | #46 | |
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I did this on mine. I also filled the filter up and then I turned it over with the throttle pressed all the way down (which disables fuel so it will not start) for about 10 secs. When I fired it up it sounded nice and smooth. It can be nerve wracking on first crank when it’s all dry for the first few secs and sounds like it wants to come apart. It’s was easy to combat this on this engine. |
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02-10-2019, 02:01 PM | #47 |
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This is truly impressive.
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02-24-2019, 10:11 AM | #48 |
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Bump, any update?
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02-25-2019, 08:39 AM | #49 |
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02-25-2019, 08:46 AM | #50 |
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cavitation .. wasn't it more of boiling/evaporating of fluids due low pressure that lowers boiling temp of fluid, not rising temps themselves or my memory fails me?
At least IIRC it was that way for boat propellers, especially high speed ones, with water evaporating for fast spinning propeller, thus high pressure gradient on one side of blade .. |
02-25-2019, 08:53 AM | #51 |
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02-25-2019, 01:05 PM | #52 | |
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Is it OK to use the gasgacinch on all of those plates? Subaru put SO MUCH SEALANT everywhere that I would expect they would've put some here too! Sealant galore Last edited by fika84; 02-25-2019 at 04:12 PM. |
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02-25-2019, 06:23 PM | #53 | |
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03-26-2019, 10:24 AM | #54 | |
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03-27-2019, 06:51 AM | #55 | |
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I always understood it to be that the fast spinning propeller causes sufficient vacuum at the leading edge to cause the cavitation. Source: 20 years of the Canadian Navy |
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03-27-2019, 07:00 AM | #56 |
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I've always thought vacuum cleaners were an oxymoron.
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