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No I have not. I didn't pursue this option only because I was having most of my problems at idle or at low speeds where boxing it in would probably not help. Again I tried a lot of things. I started out with the F-body radiator and now have the popular Alradco radiator and saw no difference. I'm hoping that if the fans work than maybe I can start going backwards and revisit the lighter F-body core and maybe eliminate one of the two fans. You guys have to take into consideration what I was starting with. I hade this popular dual fan set-up that I bought from a popular board vendor. Apparently the fan set-up you can buy today use Spal fans where as mine are not. Matter of fact I was originally making a new staggered shroud for the dual Spal fans and when I removed mine I was horrified to see that they were not Spal fans and dimensionally much smaller that what is advertised today. So this leads me to believe that somewhere the design was updated and maybe if I started out with them I would have no issue. Another thing to consider is that I have limited room in back of my radiator. My turbo consumes much of that space. When I designed my own shroud I was able to use a large single and offset it so that everything clears. For my application there is probably even more history that I have forgotten and/or to lazy to type in a already long winded post but the story above pretty much sums it up.
Np!
Law of diminishing return? You aren't even close. The longer the pass the thicker the core needs to get to maintain flow period. If you do nothing but cut the thickness in half you cut the flow in half. Also as far as retained heat you are very far off. If you remember the original problem was he had 5-6psi pressure drop across the core of the old intercooler. Which equates to a major flow restriction. The intercooler does about zero real time cooling during a pass and mainly acts as a large heat sink. Once the core is saturated charge temps rise rapidly. Having a large core at near ambient temps before a pass takes longer to heat soak and will maintain acceptable charge temps throughout a pass. Your response backs our original assessment that this community is stuck in the dark ages on charge air cooling. I'm not trying to be a dick but we have real data and reacted to it. Not a copy of some crappy flowing cross flow unit that was made as big as possible to fill the front of the car.
There's not diminishing returns. The core thickness must be increased as the pass lengthens or you drop flow. This isn't disputable. The amount of heat to sink a given mass can also be definitively calculated and is also indisputable .He is balancing his combination. That's why he's using the new fan setup. That was the point of the thread. His old one was inadequate. Shit fans and shit shrouds. A 4" core wasn't adequate with the dual pass for his application. Inadequate flow because of the long pass
Yes, understood. He's working on getting it right and he might have found the answer.
I understand this thread was meant to share and inform. I am curious as to what success you have. And how you did it. As stated earlier, I already understood you had probably left no stone unturned.
I was hoping some day for an answer based more on tests than calculations. And I'm sure in time you will have these results.
