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Thanks, Doc. For the advice, and the well wishes for Vegas. I have been playing APA league since 2011, and this is the first trip to the big games. Going for 8- and 9-ball. I am happy just to be able to say I played in Vegas. If we do well, that will be icing on the cake. Its going to be fun.Your fan will work best mounted "tight" and centered on the core. You want it to blow directly through the rad, not from a distance.
If you think of it like water through a hose, it makes sense... press the hose tight to the rad and nearly every drop pushes through... pull the hose back and more area gets wet, but much less passes through.
"Baffling" from the grille to the rad will increase airflow when the vehicle is in motion... like a funnel, baffling forces incoming air to pass through the radiator, not around, above or below it.
This is cooling 101. Take the time and you won't be disappointed.
Good Luck in Vegas! I used to play league pool, but never made it to the big show!
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I have just the stuff to make baffling for the front of the radiator. Should be a piece of cake. Actually should have thought of it myself. I was the engine cooling system writer for Freightliner Service for years. Baffles don't look like much, but they have an important job.