Preheat the oven to 350º F and lightly grease a 9x13 inch baking dish with oil. In a large bowl combine white sugar, flour, baking soda, and salt, whisk.
Then add eggs, crushed pineapples with juice and mix with a spoon until smooth.
Pour the batter into a baking dish.
Sprinkle the dough with chopped pecans and brown sugar. Place the baking dish in the oven, bake for 40-45 minutes, or until a toothpick inserted in the center comes out clean and dry.
Icing: Mix evaporated milk, white sugar, and butter in a little saucepan over medium heat and bring it to a boil. Remove icing from heat, add vanilla, and stir.
Take the pie out of the oven, prick it with a toothpick or bamboo skewer around the entire perimeter. This is necessary in order for the icing to saturate the entire pie.
Pour hot icing over the cake and let cool completely. Cut into pieces and serve.