I've used that plastic Summit windage tray. What I like about it is that is has an integral gasket. I didn't think it had enuff louvers, so I made more with a torch and a knife. I have not heard of any dyno testing on the Summit tray, so who knows if it's any good?

A little windage tray trivia: (non-Mopar, so the faint of heart better hit the back button now) By the late 1920's the Duesenberg brothers had 15 years of successful racing experience. Their cars/engines had won the Indy 500 3 times, and they were the only American car manufacturer to ever win the French Grand Prix at Lemans. So they knew what they were doing. Yet I was surprised when I pulled the oil pan off my '29 Duesenberg to find a windage tray. It had a shape formed on one side to gather the oil and send it down thru holes, thru a screen, into the pan. I wonder how long they had been using windage trays, and how much of an advantage it may have given them. Their most successful competitor was Miller, and I don't think that the barrel crankcase of a Miller (like an Offy) would allow for a windage tray. On the off chance that anyone is bored, here is my painfully long and poorly produced video of the oil pan windage tray removal. https://youtu.be/jpIxtB8zfC8

That video is so old, I'm surprised it's not in Black and White. When will we ever see the oil pan go back on???

i did grow a "slight" beard watching that video..............
however, it was interesting, because i have never seen inside one of those engines.

Hmm....I ordered one for a 5.00 stroke in 2016, no sign as yet despite repeated emails.

Try making your own, I use a thick piece of single layer cardboard (from a valve cover gasket set) to mock them up as a template, they are easy to cut and fix before transferring it onto the thin sheet metal piece, aluminum or steel, that I will use
I remember hearing from Jason Pettis that a tight-fitting crank scraper on a BB Chevy was worth as much as 30 HP gain at 8000 RPM on an 800 + HP engine that they had to use for those dyno tests they did back in the early 1990s He also mentioned that it didn't add any power under 6000 RPM at WOT
IHTHs

I've thought about it, but I'm $550 in as I sent the money up front for "materials". I'm not sure if I'm being or have been scammed

IMHO the tray's vertical position should be as far from the crank's rotation depth as practical (deeper with a deep pan, etc.), but enough above the (resting) oil level so that WOT acceleration & panic braking don't submerge one end of the tray. For 14 second cars this is overkill, but @ 11.0 or less (WAG) you need it.
Vertical baffles in the pan floor can act as dams to remedy sloshing on both ends, remember to add vents at the pan-dam join to allow drainage.

Kevin is really smart, has done lots of work, makes a nice product.

I like the idea of the scraper better than a tray. Sounds like they can be hard to get. I like your design.

I’m also using a scraper, and a spacer for the tray and pan. And some drain returns I made for the hemi.

Where did you get that scraper? I have been watching episodes of engine masters finding power in windage control. They found 8 hp in a windage tray, but found 22hp in a custom Moroso pan. The pan had kick outs close to the rail. The extra power is found over 5500rpm. I would be interested in a scraper for sure, the windage tray i will have to give that more thought as my 572 is not an all out max hp deal.

http://www.crank-scrapers.com/

This is also the same company people are saying they didn’t get their stuff. I know I ordered mine and it didn’t show up when he said. I called atleast once or maybe twice additionally before I got it.

Of all i have seen, I really like the one DVW is using. I think it's A REAL GOOD IDEA on a wet sump application.

Mine and Doug’s are the same brand.

I ordered mine in 2016 I'm regularly in contact via email, sometimes I get a reply, sometimes I don't. I haven't been able to catch him on the phone but have spoke to his wife who said he would return my call..... it didn't happen.

That really sucks. It’s a shame someone has a company that can provide an awesome product if they ran their business correctly. Makes me afraid to order anything else from them.

They do have a great product. And the guy knows his stuff and is nice to talk to on the phone, very informative. But slower than a sloth in a coma. I first attempted to contact them in march of 2014 about a 392 hemi with a 5/8 stroker for which he did not have a pattern. By April of 2016, he had sent me a test pattern, I dialed it in on the engine, and sent it back. About April of 2017 I had the scraper. By that time, the engine was apart for the 2nd time, so I final fitted and installed the scraper. Plan WAY ahead!

Wow, too bad that guy does business like that, because i would buy one right now.

My tray is made in the pan. I also use a scraper.

I've used 2 of these.

https://bobmazzoliniracing.com/store/#!/Big-Block-Crank-Scraper/p/81474464/category=4301789

That is a very nice pan. What is the cost on a pan like that today?