Originally posted by Star Turbo Talon
You have a semi rare block. See the 1/8npt plug next to the knock sensor? That plugs to oil galley, you can remove that plug to install an oil feed for a turbo or gauge ect. Only block i saw that in was a 95 i parted out years ago.

Interesting. I was just painting the built block from Daisy last night and noticed I have the same. Only mine has a tidy little bolt in there. I was surprised I hadn't noticed it before. Pretty sure I rebuilt the original block (97), since the first rebuild (95) lost that wrist pin lock. Then again, I did buy the car new in September of 96, so perhaps it's a 95-96 throwback? If you don't have it on your 97-98...

Just a thought.

I think it's odd that the OPSU would be losing oil through the connector, though. It's still my first suspect, since a rear main leaking that badly would probably result in the clutch slippage Erik mentioned. Either way, I would drop that lower access panel and inspect the inside of the bellhousing to be sure. Wouldn't hurt to throw a plug in that OPSU location, clean the backside, and fire it up to see if it's fixed.

Good luck.