Not in my 737 book, Intruder - which a/c are you talking about? The only Boeing 737 advice is to consider using a less-reduced power setting in windshear conditions, and I read the enquiry as a general 'Vr' question I think?
Boeing's 737 NG advice is as follows:
Wind corrections are not made to VR and V2 speeds. V1 is corrected as shown in the Operations Manual for headwind or tailwind components and runway slope.
Obviously increasing V2 will improve the windshear margin.
I'm interested in a reference for your post.