The thicker Pork Loins will take 30-45 minutes a pound at 225, smoke to an IT of 140-145*F, wrap and rest...The Corn really just needs to be heated so 1 hour sounds fine...
Loins are very lean so Brine adds flavor, help maintain moisture after cooking and tenderizes the meat. Check out this article... http://www.edinformatics.com/math_science/science_of_cooking/brining.htm
Here are a couple of Recipes you may like to try...JJ
2-12oz.Cans Apple Juice Concentrate
1C Apple Cider Vinegar
1/2C Kosher Salt
2T Pickling Spice (optional)
1T Sage, rubbed
Combine all and Brine the meat at least over night, 24 hours would be better.
Mild Bubba Q Rub
1/2C Sugar in the Raw (Turbinado)
2T Sweet Paprika (Hungarian)
1T Kosher Salt
1T Chili Powder (contains some Cumin and Oregano) Ancho Chile is same without cumin, oregano etc.
1T Granulated Garlic
1T Granulated Onion
1tsp Black Pepper, more if you like
1/2tsp Grnd Allspice
Cayenne or Chipotle Pwd to taste, start with 1/2tsp and go from there.
Apple Pork Topper
3C Apple Sauce
3T Dijon Mustard
3T Brown Sugar
2T Apple cider Vingar
1tsp Rubbed Sage
1/2tsp Black Pepper
Optional: 2-3 Apples, peeled, diced and sauteed until golden brown and tender in 2T Butter.
Place all in a pot and simmer on low until thickened as desired. Adjust sweet/salt to taste. Spoon over Pork Roast, during last 30-60 minutes of Cook time and/or over the pork at the table.