Dee514 wrote:
Are you sure your springform pan is 11 inches and not 10? I only ask because an 11 inch springform pan is an unusual size for home use.
A 9 x 2 1/2-inch springform pan will hold 10 cups of batter.
A 10 x 2 1/2-inch springform pan will hold 12 cups of batter.
A 8 x 3-inch springform pan will hold 11 cups of batter.
A 9 x 3-inch springform pan will hold 12 cups of batter.
I'm guessing that an 11 x 2 1/2-inch springform pan will hold 14 cups of batter. (I don't own an 11-inch pan, so I can't measure it for you.)
Since you will need about 14 cups of batter (for an 11 x 2 1/2-inch pan), I would say you need to increase your recipe by 1/4 to 1/3 (depending on what size pan your original recipe called for).
Guess not that unusual Dee, a quick google search turned up a brand I'm familiar with .
http://www.cooking.com/products/shprodde.asp?SKU=693874