Making a 2 ramekin recipe into an 8 ramekin recipe: Do I change the cooking time?

I've read answers about doubling a casserole recipe in a larger container, or putting two cake pans in the oven instead of one. But what about a recipe that asks you to put your ramekins into a shallow pan with an inch of water in it, and you want to do that with 8 ramekins instead of the two that the recipe is intended for? Do you have to add time? Reduce the temperature? Both?

Thanks,

Beth