I was looking through some of the launch and node files and wasn't sure where to begin with adjusting turtlebots speed when executing a goal in amcl? I want the robot to move faster to Deliver samples from point to point. Also like to include that I am using hydro on 12.04. I am assuming the gmapping works differently than the teleop. Am I wrong? Any advice appreciated.

I have changing parameter values in baselocalplannerparams.yaml and dwalocalplannerparams.yaml but i see nothing.

Thanks in Advances