So, I've been working on my cooling system after installing my newly built 383. I've not been having significant issues, but while re-locating my secondary trans cooler in front of the primary cooling fan, I noticed I seem to be missing a bunch of air guiding baffles that go in front of the radiator. I have the main air dam that hangs down, and the curved piece that goes under the front bumper all the up to the nose of the car, but behind that curved underside piece, there is nothing else. Honestly I've been paying a lot mor to aero in some of my other hobbies and notice, the way things are set up now, a good amount of air is being forced up in front of the radiator, but a significant amount of it is able to bypass the radiator on either side and even through to the top near where the hood latch is.

I'm finding there seem to be a couple variants of these pieces I believe to be missing, but I don't recall ever removing them, so they were either removed by a body shop when i had a front end accident many years ago, or maybe they were never there in the first place for my specific year and option package? Either way, if they would fit, the concept of them would seem seriously beneficial to my cooling system. To be clear my Camaro was a TPI car, and I'm still running the factory Y intake pipe and filter holder tray.

I happened to find someone on here selling the exact parts I may have needed, but apparently he had trashed them just days before I reached out... These are his picutres:

Bottom


Top

I also found a parts diagram that seems to show the parts, but I'm not sure it is an exact match for the parts I need:

I have part 8, and the version of part 1 where my filter y-intake pipe mounts, plus the two pieces of 5 behind my fog lights, but I don't have 6, 4, 2, or possibly 3 I'm not sure what that one is...


This is my current setup with the air filter panel at the top removed, but nothing else was removed prior to that picture.


Notice off to the right you can see the big opening, and at the bottom you can see the rear of the underside curved piece, that I believe should be mating up with the large air guide panel I believe to be missing.

Hopefully someone on here knows what parts are supposed to go with which cars and option packages, and can tell me if I should be getting these parts to improve my cooling. Or at least knows if they fit, or can be made to fit.

 

Found this diagram as well. It looks a little more comprehensive, but I'm not entirely certain what year it is from... Or what year range...

 

Noting my findings thus far...

Needed:
- Later version 87-92 of the side panels with 3 mounting holes that is shown on explosion diagrams with top piece - 14101675, 14101676 (Probably for my car)
- Main curved center section 85-92. May only have been on Iroc-z and Z28 cars equipped with TPI engines - 14017376 (Probably for my car) Should include two plastic riveted parts on either side allowing the part to be mounted to the frame on either side of the radiator opening when the main piece of this section only has side facing holes.
- Center Cover for the newer 85-92 version 14017376 of the main curved center section -14108393
- The parts that are supposed to be permanently plastic riveted to the main center section. Shows 82-92? - 14107487, , (7333 shown on some, not sure what that means...)

Not Needed or Unknown:
- Upper radiator splash shield - 14083956 (Maybe the pre 1990 version of the center section that goes with the above two mounting hole side pieces? Says used on 82-92? Not for my car.)
- Earlier version 82-86 with only two mounting holes shown on diagrams without top piece - 14039446, 14039445 (Not for my car)

If anyone has any of these parts I need sitting around, and they would be willing to part with them, please let me know!

 

I guess it looks like I'm answering my own question, but I don't really trust everything I'm reading online. I would love confirmation from someone with a 91-92 z28 of what exactly there car has. Some photos would be super helpfull too!

Anyone???