There is a pic of it in this thread. http://www.e30tech.com/forum/showthread.php?t=79917
TC Motorsports is an outfit near Seattle. They support a Continental oriented team and are tight with the Pro3 boys. I’ve seen some oil pressure data associated with their baffle and it’s pretty compelling. Note how different their design is from the I-J scraper.
There is an issue here of baffle vs. scraper. The purpose of a baffle is to create a “still” oil volume at the oil pump pickup such that the pump pickup is submerged at all times. The purpose of the scraper is to reduce the amount of oil whirling in the crazy hurricane that is our crank at high rpm.
The I-J scraper does a bit of both. It will put steel in the way of any oil that wants to whirl around, and it also forms a ledge between the block and oil pan to make it harder for oil to wash up the right side of the block.
The I-J scraper is a better scraper then it is a baffle. The ledge it creates is 4-5" above the top of the oil pump’s pickup, and that would seem to be an issue when the objective is to prevent oil from being able to easily slosh away. In contrast the TC Motorsports baffle is really close to the top of the OP’s pickup. But all the data I’ve seen from others and accumulated myself seems to indicate that the I-J scraper prevents the oil pump pickup from sucking air.
There is a performance benefit in extracting the oil that would otherwize whirl around the crank. I don’t know how much, but it’s almost sure to be small enough that it’d be lost in dyno noise.
The TC Motorsports baffle has no scraping functionality. But it’s cheap and it’s easier to install then the I-J scraper.