Hey Dave - I hope you don't feel like I was challenging you on this just to be a keyboard jockey. I use these threads as my primary source for building my SLC and I'm sure many others do as well. (no joke) I've read just about every post in this forum going back about 10 years. I was absolutely obsessed with learning as much as I could before I pulled the trigger. When I see someone make a build recommendation and it's possible it may lead someone down a difficult path I tend to want more information so we can all better understand what's being discussed. I didn't want someone down the road to read these posts then go off thinking there was some kind of hard design rule about radiator inlet and exit areas. As I'm sure you've done, I've read so many posts and have mentally jotted down "this is how you should do X" that I've forgotten the whys in some instances.
On the topic of the radiator outlet explicitly, there really hasn't been much discussion. Plenty of posts about cooling, but not much on radiator exit. The only posts I can recall touching on this subject are:
- Howard Jones' build thread where he discusses opening his exit
- Bill Phillips (Rumbles)' thread where he discusses moving his radiator(s) to the side intakes. He actually ran tuft testing IIRC
- my blog/build thread where I discuss ducting and my hood mods
Apart from Howard and myself, I don't recall seeing anyone else build a duct specifically for radiator discharge air.