Tune Your Engine Exhaust Like a Pro

Written by Eric Henderson The Engine Shop Technical As seen in the October 2012 issue of Model Aviation. This month, I will explore engine exhaust tuning. One of the most interesting aspects of being involved most of my life with internal-combustion engines is sound. There is something hardwired in us that causes us to react differently to different sounds, and differently to the same sound. A jet passing overhead is so commonplace today that most never look up unless it is low or unusually loud. There is one sound that seems to have a built-in degree of sensitivity to our…