Here's a pic of the trap doors. They will shut against that plate to keep the oil in the sump under acceleration.
THe front sump isn't a great idea for a high-performance car. Really, a dry sump would be best. I've done some analysis of the car's acceleration and found that the oil won't drain down the flat section of the pan during hard acceleration in gears 1-2-3-4. This is shifting over 6000 RPM and wide-open throttle. Only in 5th gear will the oil start to flow into the sump. The oil in the sump is being forced backwards under acceleration and will roll out of the sump and up the pan and into the rotating assembly. It's no wonder these cars have oiling problems.
Just one thing missing...
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1980 928S Euro x2
1987 944 N/A
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