How long until d Bol kicks in

This may sound like a very newb question and I apologize for that I have lots of experience with AAS how ever I have a powerlifting meet coming up which I need to make weight for, if I weigh in Friday morning and take 50mg d Bol Friday and again Saturday morning before the meet will it do anything at all?
I would take halo but d Bol is all I have right now

No it wont do anything for you.

The dbol takes several hours to synthesize into your body but your body needs time to generate tissue. AAS is not a magic drug.