How many calories do you eat a day? Your daily calories should not be more than 30% from protein (that's the easier way to look at it vs. grams). I am not sure how much you were eating before but you would also need to make sure you are drinking plenty of water when upping your protein intake as you will need more water to handle the demands put on your kidneys by the increase in protein.

I'm going to guess you are an endurance athlete, and the protein ranges for that are between 1.2 to 2.0 grams per kilogram of body weight or 12 to 18% of your total calories contributed by protein. These figures are from Practical Application in Sports Nutrition by Fink, Burgoon and Mikesky. I love this book, it was a text book in one of my sports management classes.