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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-29-2019, 04:21 PM | #57 |
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This has been a very good read. Thank you @solidsnake11 for your excellent research and information. I'd love to see the community come together and put out some parts for those of us who don't have the fabrication skills to replicate this, but are also concerned with oiling under race conditions. Oil pressure issues on this platform are probably my main concern right now, and I'm mostly prepping by figuring out my engine swap plans, but I'd just as soon resolve them so I can keep the FA20 as the heart of the beast.
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10-27-2019, 01:47 PM | #58 | |
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By any chance do you have a oil flow schematic Thanks Roger |
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10-27-2019, 02:53 PM | #59 | |
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10-27-2019, 03:24 PM | #60 | |
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Thanks Roger |
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10-27-2019, 03:28 PM | #61 | |
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11-07-2019, 09:03 PM | #62 | |
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And don't forget, I'll take one of those oil galley covers you made. PLEASE. Or send me the cnc file and I'll get it cut locally. PLEASE Thanks Roger |
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11-20-2019, 03:21 PM | #63 |
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Can anyone chime in on a swinging oil pick up like used in this FA20DIT?
Apparently this, an accusump and a baffled pan was enough to run competitively in BTCC. Is there an assumption that the FA20DIT blocks solved the inherent oiling issues in the FA20? https://www.hpacademy.com/technical-articles/what-do-you-do-when-youre-not-allowed-a-dry-sump-tech-byte/ "To give the best chance of being able to provide a high pressure supply of oil, a clever moving pickup is used. This swings inside the sump in response to the lateral and longitudinal g forces the car is being subjected to, meaning that it essentially follows the oil around the sump." |
11-20-2019, 03:49 PM | #64 |
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Voah. Such moving pickup seems very innovative idea imho.
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11-22-2019, 08:23 PM | #65 |
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thought I'd mention my 2 cents worth.
I performed most of the oiling improvements that have been mentioned here. I opened up all the factory hard corners and tried to improve flow and reduce restrictions in all the galleys that needed to be addressed. I ordered 16 new rocker pivots as used in the 2014 and newer. That's the ones with the smaller oiling holes. On the 2013, one head had pivots with one size holes and the other head had larger holes. Both styles had holes larger than the 2014 model pivots. This will reduce oil flooding the heads and get more oil to the mains and rods. The pivot change should increase oil pressure by at least a small margin. I think the clearing of the restrictions and smoothing the flow will add some extra pressure at the mains as well. I added the extra fasteners in the pump cover and the plate going from the pump to the oil filter. Plus I got a galley plate like Solidsnake11 made. I'm gonna get a Killer B oil pick up, remove the screen and get an oil pickup bell and screen from a traditional 70's style oil pump. My car had 123k miles on it when it died. It does show signs of the cavitation but it is much less severe than that of the pictures in this thread. Actually its barely visible. I'll definitely add an oil cooler. I haven't decided if it'll be a sandwich plate or if I'll do some other hybrid deal. Whatever it is, it wont be anything that allows the engine coolant to absorb the heat from the oil. If I go the sandwich plate direction, I'll drill the hole in it like was mentioned earlier in the thread to keep the oil cooler from robbing pressure due to the flow loss due to surface friction in the cooler and lines. Thanks to everyone that contributed to this thread. If anyone has any good oiling improvements other than what is in this thread, I'd say list them. At least there's an audience here to kick them around. Last edited by Rabrooks; 11-22-2019 at 08:37 PM. |
11-25-2019, 01:08 PM | #66 | |
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Oil system mods for more pressure and flow.
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Did you use the same rocker pivot in both heads? What I saw in the parts diagrams it looks like the 2014 and up is superseded to 13296AA100 for both heads. 2013 has the right head as 13296AA100 and the left head as using 13296AA070. I was going to order enough to do both heads in AA100, and enough AA070 to do the left head and measure them. They are only 10 bucks each so not a big deal if I have to toss them.
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12-03-2019, 05:25 PM | #68 | |
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12-07-2019, 08:56 PM | #69 |
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Just something that I have been thinking about. I was looking at upgrading the rocker pivots to the newer part number on my 13' motor due to the new part having restricted oil flow at the tip. Then I got to thinking about modding the oil feed for the heads in the front cover like @solidsnake11 did.
For long sustained high RPM would restricting the flow at the cover potentially cause poor flow at the rocker pivot itself during high sustained RPMs ? I guess the best mental picture I could think of for my reasoning is kinking a water hose in the middle vs. putting your thumb over the end. |
12-07-2019, 09:20 PM | #70 | |
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I have been hunting for newer heads but have had no luck. |
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