... before giving it higher revs. Assuming no oil temperature gauge...
I know it can vary from engine to engine too of course.
Until it reaches operating temperature or until the temp gauge settles is the correct answer. My Subaru wont allow S# mode to be engaged if the engine is cold..which is a good thing. Anyone ragging a car while the engine is cold is stupid
	
 
 though it will limit revs a bit if it isn't up to heat but it won't totally over-ride you especially if you kick-down.