Adverse Side Affects to Running the Oil Cooler Upside Down?
08-30-16, 01:12 PM
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Adverse Side Affects to Running the Oil Cooler Upside Down?
Been searching for a while but i cant find anything specific to my question.
I have to remount my oil cooler to the front side of the crossbar due to my new intercooler being installed in front of my radiator. I think i can get away with using the stock oil lines, but ill have to mount the oil cooler upside down. Any adverse sides? The only info i could find was on the NASIOC forum, and they said its ok. Thanks in advance.
I have to remount my oil cooler to the front side of the crossbar due to my new intercooler being installed in front of my radiator. I think i can get away with using the stock oil lines, but ill have to mount the oil cooler upside down. Any adverse sides? The only info i could find was on the NASIOC forum, and they said its ok. Thanks in advance.
Last edited by FührerTüner; 08-30-16 at 01:36 PM.
08-30-16, 07:56 PM
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When I first had the rotary swap in my B2200, I ran the stock FC oil cooler upside down, it worked fine, I changed it to being in a simmilar position and correct way up as installed in the FC. My thinking was that I had it mounted about as high as the intake plenum, and being upside down, the oil in fitting was on the bottom and went straight back into the oil pump, I figured that after sitting for awhile, the oil cooler will drain itself, I kept the stock oil bypass thing in the oil cooler, so I was wondering if the oil cooler drained itself, it may introduce air bubbles into the oil system when the bypass opens up.
None of this was confirmed though, the only thing I noticed was that it seemed like it took longer for oil pressure to appear after startup, but I never timed it. Looking at how the stock oil cooler is mounted and how the hoses are routed has both oil hoses dropping down into the cooler, and the cooler is mounted not much above the oil pump, which will prevent it draining.
None of this was confirmed though, the only thing I noticed was that it seemed like it took longer for oil pressure to appear after startup, but I never timed it. Looking at how the stock oil cooler is mounted and how the hoses are routed has both oil hoses dropping down into the cooler, and the cooler is mounted not much above the oil pump, which will prevent it draining.
08-30-16, 08:13 PM
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Was thinking the inlet being on the bottom could possibly not be able to pump oil up through the return line or something along those lines. I don't wanna deprive my.engine of oil by any means.
08-30-16, 08:24 PM
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When I first had the rotary swap in my B2200, I ran the stock FC oil cooler upside down, it worked fine, I changed it to being in a simmilar position and correct way up as installed in the FC. My thinking was that I had it mounted about as high as the intake plenum, and being upside down, the oil in fitting was on the bottom and went straight back into the oil pump, I figured that after sitting for awhile, the oil cooler will drain itself, I kept the stock oil bypass thing in the oil cooler, so I was wondering if the oil cooler drained itself, it may introduce air bubbles into the oil system when the bypass opens up.
None of this was confirmed though, the only thing I noticed was that it seemed like it took longer for oil pressure to appear after startup, but I never timed it. Looking at how the stock oil cooler is mounted and how the hoses are routed has both oil hoses dropping down into the cooler, and the cooler is mounted not much above the oil pump, which will prevent it draining.
None of this was confirmed though, the only thing I noticed was that it seemed like it took longer for oil pressure to appear after startup, but I never timed it. Looking at how the stock oil cooler is mounted and how the hoses are routed has both oil hoses dropping down into the cooler, and the cooler is mounted not much above the oil pump, which will prevent it draining.
09-03-16, 10:43 AM
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Oil cooler runs fine upside down.
The oil pump is pushing oil through the cooler at up to 150 PSI (relief pressure, give or take, of the front cover regulator). There is no issue with flow while it is upside down as the flow is pressurized.
In fact, on my Cosmo, I mounted my FC oil cooler upside down.
Near the end of the video:
The oil pump is pushing oil through the cooler at up to 150 PSI (relief pressure, give or take, of the front cover regulator). There is no issue with flow while it is upside down as the flow is pressurized.
In fact, on my Cosmo, I mounted my FC oil cooler upside down.
Near the end of the video:
09-03-16, 03:50 PM
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Oil cooler runs fine upside down.
The oil pump is pushing oil through the cooler at up to 150 PSI (relief pressure, give or take, of the front cover regulator). There is no issue with flow while it is upside down as the flow is pressurized.
In fact, on my Cosmo, I mounted my FC oil cooler upside down.
Near the end of the video:
Part 27: Cooling System - My 76 Mazda RX-5 Cosmo Restoration - YouTube
The oil pump is pushing oil through the cooler at up to 150 PSI (relief pressure, give or take, of the front cover regulator). There is no issue with flow while it is upside down as the flow is pressurized.
In fact, on my Cosmo, I mounted my FC oil cooler upside down.
Near the end of the video:
Part 27: Cooling System - My 76 Mazda RX-5 Cosmo Restoration - YouTube
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